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2016-10-24perf jit: Generate .eh_frame/.eh_frame_hdr in DSOStefano Sanfilippo3-7/+109
When the jit_buf_desc contains unwinding information, it is emitted as eh_frame unwinding sections in the DSOs generated by perf inject. The unwinding information is required to unwind of JITed code which do not maintain the frame pointer register during function calls. It can be emitted by V8 / Chromium when the --perf_prof_unwinding_info is passed to V8. The eh_frame and eh_frame_hdr sections are emitted immediately after the .text. The .eh_frame is aligned at a 8-byte boundary, and .eh_frame_hdr at a 4-byte one. Since size of the .eh_frame is required to be a multiple of the word size, which means there will never be additional padding between it and the .eh_frame_hdr on machines where the word size is 4 or 8 bytes. However, additional padding might be inserted between .text and .eh_frame to reach the correct alignment, which will always be 8 bytes, also on 32bit machines. The reasoning behind this choice is that 4 extra bytes of padding worst case are not a large cost for the advantage of removing word-size dependent offset calculations when emitting the jitdump. Signed-off-by: Stefano Sanfilippo <[email protected]> Signed-off-by: Ross McIlroy <[email protected]> Reviewed-by: Stephane Eranian <[email protected]> Cc: Anton Blanchard <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf jit: Add unwinding supportStefano Sanfilippo2-3/+66
This record is intended to provide unwinding information in the eh_frame format. This is required to unwind JITed code which does not maintain the frame pointer register during function calls. The eh_frame unwinding information can be emitted by V8 / Chromium when the --perf_prof_unwinding_info is passed. A record of type jr_code_unwinding_info comes before the jr_code_load it referred to and contains both the .eh_frame and .eh_frame_hdr. The fields in the header have the following meaning: * unwinding_size: size of the eh_frame and eh_frame_hdr, necessary for distinguishing the content from the padding. * eh_frame_hdr_size: as the name says. * mapped_size: size of the payload that was in memory at runtime. typically unwinding_size if the .eh_frame_hdr and .eh_frame were mapped, or 0 if they weren't. It should always be the former case, since the .eh_frame is guaranteed to be mapped in memory. However, certain JITs might want to inject an .eh_frame_hdr with an empty LUT to trigger fp-based unwinding fallback in libunwind. The only part of the .eh_frame_hdr that libunwind reads from remote memory is the LUT, and since there is none, mapping the unwinding info in memory is not necessary, and 0 in this field signifies that it wasn't. This practical hack allows to save bytes in code memory for those JIT compilers that might or might not maintain a valid frame pointer. The payload that follows is assumed to contain first the .eh_frame and then the .eh_header_hdr, with no padding between the two. Signed-off-by: Stefano Sanfilippo <[email protected]> Signed-off-by: Ross McIlroy <[email protected]> Reviewed-by: Stephane Eranian <[email protected]> Cc: Anton Blanchard <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf jit: Do not assume pgoff is zeroStefano Sanfilippo1-2/+2
When calculating .eh_frame_hdr base and LUT offsets do not always assume that pgoff is zero. The assumption is false for DSOs built from the jitdump by perf inject, because the ELF header did not exist in memory at sampling time. Signed-off-by: Stefano Sanfilippo <[email protected]> Signed-off-by: Ross McIlroy <[email protected]> Reviewed-by: Stephane Eranian <[email protected]> Cc: Anton Blanchard <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf jit: Make perf skip unknown recordsStefano Sanfilippo1-3/+3
The behavior before this commit was to skip the remaining portion of the jitdump in case an unknown record was found, including those records that perf could handle. With this change, parsing a record with an unknown id will cause a warning to be emitted, the record will be skipped and parsing will resume from the next (valid) one. The patch aims at making perf more future proof, by extracting as much information as possible from jitdumps. Signed-off-by: Stefano Sanfilippo <[email protected]> Signed-off-by: Ross McIlroy <[email protected]> Reviewed-by: Stephane Eranian <[email protected]> Cc: Anton Blanchard <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf jit: Remove unecessary padding in jitdump fileStephane Eranian1-37/+1
This patch removes all the string padding generated in the jitdump file. They are not necessary and were adding unnecessary complexity. Modern processors can handle unaligned accesses quite well. The perf.data/ jitdump file are always post-processed, no need to add extra complexity for no real gain. Signed-off-by: Stephane Eranian <[email protected]> Cc: Anton Blanchard <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf jit: Enable jitdump support without dwarfMaciej Debski4-4/+11
This patch modifies the build dependencies on the jitdump support in perf. As it stands jitdump was wrongfully made dependent 100% on using DWARF. However, the dwarf dependency, only exist if generating the source line table in genelf_debug.c. The rest of the support does not need DWARF. This patch removes the dependency on DWARF for the entire jitdump support. It keeps it only for the genelf_debug.c support. Signed-off-by: Maciej Debski <[email protected]> Reviewed-by: Stephane Eranian <[email protected]> Cc: Anton Blanchard <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Fixes: e12b202f8fb9 ("perf jitdump: Build only on supported archs") [ Make it build only if NO_LIBELF isn't defined, as jitdump.o will only be built in that case ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf jit: Improve error messages from JVMTIStephane Eranian1-10/+29
This patch improves the usefulness of error messages generated by the JVMTI interfac.e This can help identify the root cause of a problem by printing the actual error code. The patch adds a new helper function called print_error(). Signed-off-by: Stephane Eranian <[email protected]> Cc: Anton Blanchard <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Nilay Vaish <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ Handle failure to convert numeric error to a string in print_error() ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf jit: Add NT_GNU_BUILD_ID definition for older distrosArnaldo Carvalho de Melo1-0/+4
Such as CentOS5, where such define is not present in elf.h. This file, genelf.c, wasn't being built for several systems, because it mistakenly was conditional on some DWARF features, now that it is just needing libelf, after "perf jit: Enable jitdump support without dwarf" it fails. So, as preparation for "perf jit: Enable jitdump support without dwarf", conditionally define it, if not available. Cc: Adrian Hunter <[email protected]> Cc: Anton Blanchard <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Maciej Debski <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf jit: Avoid returning garbage for a ret variableArnaldo Carvalho de Melo1-1/+1
When the loop body isn't executed at all, then the 'ret' local variable, that is uninitialized will be used as the return value. This triggers this error on Alpine Linux: CC /tmp/build/perf/util/demangle-java.o CC /tmp/build/perf/util/demangle-rust.o CC /tmp/build/perf/util/jitdump.o CC /tmp/build/perf/util/genelf.o util/jitdump.c: In function 'jit_process': util/jitdump.c:622:3: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized] fprintf(stderr, "injected: %s (%d)\n", path, ret); ^ util/jitdump.c:584:6: note: 'ret' was declared here int ret; ^ FLEX /tmp/build/perf/util/parse-events-flex.c / $ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-alpine-linux-musl/5.3.0/lto-wrapper Target: x86_64-alpine-linux-musl Configured with: /home/buildozer/aports/main/gcc/src/gcc-5.3.0/configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info +--build=x86_64-alpine-linux-musl --host=x86_64-alpine-linux-musl --target=x86_64-alpine-linux-musl --with-pkgversion='Alpine 5.3.0' --enable-checking=release +--disable-fixed-point --disable-libstdcxx-pch --disable-multilib --disable-nls --disable-werror --disable-symvers --enable-__cxa_atexit --enable-esp +--enable-cloog-backend --enable-languages=c,c++,objc,java,fortran,ada --disable-libssp --disable-libmudflap --disable-libsanitizer --enable-shared +--enable-threads --enable-tls --with-system-zlib Thread model: posix gcc version 5.3.0 (Alpine 5.3.0) But this so far got under the radar, not causing any build problem, till the "perf jit: enable jitdump support without dwarf" gets applied, when the above problem takes place, some combination of inlining or whatever, the problem is real, so fix it by initializing the variable to zero. Cc: Anton Blanchard <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Maciej Debski <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf tools: Implement branch_type event parameterAndi Kleen5-43/+71
It can be useful to specify branch type state per event, for example if we want to collect both software trace points and last branch PMU events in a single collection. Currently this doesn't work because the software trace point errors out with -b. There was already a branch-type parameter to configure branch sample types per event in the parser, but it was stubbed out. This patch implements the necessary plumbing to actually enable it. Now: $ perf record -e sched:sched_switch,cpu/cpu-cycles,branch_type=any/ ... works. Signed-off-by: Andi Kleen <[email protected]> Acked-by: Jiri Olsa <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf record: Improve documentation of event parametersAndi Kleen1-3/+6
- Some editing (params -> parameters) - Point to the now more complete list of parameters in the perf list manpage. Signed-off-by: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf header: Display feature name on write failureJiri Olsa1-1/+1
Display name of feature instead of just the number during recording data. Before: failed to write feature 13 Now: failed to write feature HEADER_CPU_TOPOLOGY Signed-off-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf header: Display missing featuresJiri Olsa1-1/+9
Display missing features in header info, like: $ perf report --header-only # ======== # captured on: Mon Oct 10 09:39:47 2016 ... # missing features: HEADER_TRACING_DATA HEADER_CPU_TOPOLOGY ... To help in diagnosing problems. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf report: Move captured info to generic header infoJiri Olsa2-10/+9
It's not displayed in TUI now, putting it into generic part. Signed-off-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24tools lib: Add for_each_clear_bit macroJiri Olsa6-0/+72
Adding for_each_clear_bit macro plus all its the necessary backbone functions. Taken from related kernel code. It will be used in following patch. Signed-off-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24tools lib traceevent: Add version for traceevent shared objectJiri Olsa1-5/+9
Adding version support for libtraceevent.so object. Using the existing EVENT_PARSE_VERSION variable to construct the .so object version string, which now consists of: $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION) Looks like it was created for this purpose anyway. The build will now produce following traeceevent libraries: $ ll libtraceevent* libtraceevent.a libtraceevent.so -> libtraceevent.so.1.1.0 libtraceevent.so.1 -> libtraceevent.so.1.1.0 libtraceevent.so.1.1.0 Also the install target will carry them: $ make DESTDIR=/tmp/krava prefix=/usr install INSTALL trace_plugins INSTALL libtraceevent.a INSTALL libtraceevent.so.1.1.0 $ find /tmp/krava/ | xargs ls -l ... /tmp/krava/usr/lib64: total 572 libtraceevent.a libtraceevent.so -> libtraceevent.so.1.1.0 libtraceevent.so.1 -> libtraceevent.so.1.1.0 libtraceevent.so.1.1.0 ... Signed-off-by: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24tools lib traceevent: Rename LIB_FILE to LIB_TARGETJiri Olsa1-6/+6
To ease up following patch. Signed-off-by: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24tools lib traceevent: Add do_install_mkdir Makefile functionJiri Olsa1-3/+7
Decompose the do_install function to ease up the following patch a little. Signed-off-by: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24tools lib traceevent: Add install_headers targetJiri Olsa1-1/+7
Adding install_headers target to install all headers under 'include/traceevent' path, like: $ make DESTDIR=/tmp/krava prefix=/usr install_headers $ find /tmp/krava/ -type f /tmp/krava/usr/include/traceevent/kbuffer.h /tmp/krava/usr/include/traceevent/event-utils.h /tmp/krava/usr/include/traceevent/event-parse.h Signed-off-by: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf tools: Sync copy of x86's syscall tableArnaldo Carvalho de Melo1-2/+2
To get up to the recent compat pread/pwrite changes, that albeit not being used by 'perf trace' due to some raw_syscalls tracepoint limitations, trigger this warning when building perf: Warning: x86_64's syscall_64.tbl differs from kernel Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf script: Support insn and insnlenAndi Kleen2-3/+27
When looking at Intel PT traces with perf script it is useful to have some indication of the instruction. Dump the instruction bytes and instruction length, which can be used for simple pattern analysis in scripts. % perf record -e intel_pt// foo % perf script --itrace=i0ns -F ip,insn,insnlen ffffffff8101232f ilen: 5 insn: 0f 1f 44 00 00 ffffffff81012334 ilen: 1 insn: 5b ffffffff81012335 ilen: 1 insn: 5d ffffffff81012336 ilen: 1 insn: c3 ffffffff810123e3 ilen: 1 insn: 5b ffffffff810123e4 ilen: 2 insn: 41 5c ffffffff810123e6 ilen: 1 insn: 5d ffffffff810123e7 ilen: 1 insn: c3 ffffffff810124a6 ilen: 2 insn: 31 c0 ffffffff810124a8 ilen: 9 insn: 41 83 bc 24 a8 01 00 00 01 ffffffff810124b1 ilen: 2 insn: 75 87 ... Signed-off-by: Andi Kleen <[email protected]> Acked-by: Adrian Hunter <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf intel-pt/bts: Report instruction bytes and length in sampleAndi Kleen6-1/+19
Change Intel PT and BTS to pass up the length and the instruction bytes of the decoded or sampled instruction in the perf sample. The decoder already knows this information, we just need to pass it up. Since it is only a couple of movs it is not very expensive. Handle instruction cache too. Make sure ilen is always initialized. Used in the next patch. [Adrian: re-base on top (and adjust for) instruction buffer size tidy-up] [Adrian: add BTS support and adjust commit message accordingly] Signed-off-by: Adrian Hunter <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24perf intel-pt/bts: Tidy instruction buffer size usageAdrian Hunter5-23/+16
Tidy instruction buffer size usage in preparation for copying the instruction bytes onto samples. The instruction buffer is presently used for debugging, so rename its size macro from INTEL_PT_INSN_DBG_BUF_SZ to INTEL_PT_INSN_BUF_SZ, and use it everywhere. Note that the maximum instruction size is 15 which is a less efficient size to copy than 16, which is why a separate buffer size is used. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-24docs: fix locations of several documents that got movedMauro Carvalho Chehab1-1/+1
The previous patch renamed several files that are cross-referenced along the Kernel documentation. Adjust the links to point to the right places. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2016-10-24Merge tag 'iio-for-4.10a' of ↵Greg Kroah-Hartman1-5/+13
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First round of IIO new device support, features and cleanups for the 4.10 cycle. Fair number of outreachy related patches in here. Some of these may well have already been picked up by Greg but git will sort that out for us. Also some good staging cleanup work from other sources. Thanks Brian and Lars in particular for this. New device support * ACCES 104-quad-8 - New driver for this 8 channel encoder input board. Lots of new ABI with this one. * AD7766 - New driver supporting AD7766, AD7766-1, AD7766-2, AD7767, AD7767-1 and AD7767-2 24 bit ADCs. * dmard 10 - New driver for this 3 axis accelerometer. * Honeywell ABP pressure sensors. - New driver covering 56 parts in this series (too many to list here!) * HTS221 - New driver to support this relative humidiy and temperature device. * LMP91000 - New driver for this potentiostat (form of chemical sensor). Nice example of use of the buffered consumer interfaces and the use of a consumer provided trigger. * MiraMEMS DA311 - New driver for this 3 axis accelerometer. * MiraMEMS DA280 - New driver for this 3 axis accelerometer. Follow up caught up with vendor prefixes for these. Staging graduations * isl29018 light sensor - Fixes and cleanups listed below (thanks for your hard work on this Brian!) * sca3000 - Fixes and cleanups listed below. This was one of the small set of drivers that went into staging when IIO was first added. Turns out it had a few bugs and needed to be brought into the modern era! Not clear if I am the only person who actually has one of these still wired to a board. New features (Core) - Add an iio_trigger_validate_own_device helper which relies on the device and trigger having the same parent. Convenient to have this for some of the more complex trigger / device interactions. Was hand rolled in a few drivers already so good to bring it into the core. - Add an iio_read_channel_offset in kernel access helper (similar to the existing one for scale). - IIO_ATTR_{RO, WO, RW} and IIO_DEVICE_ATTR_{RO, WO, RW} macros. These lead some rather contrived function naming, but there is no denying they do reduced boilerplate. I'm going to resist their introduction in drivers 'unless' they form part of a larger set of cleanups. - Counter channel type and index type. New features (Drivers) * hdc100x - Triggered buffer support. * mcp4725 - Device tree bindings and support. - Voltage reference selection. * ti-adc0832 - Triggered buffer support. * ti-adc161s626 - Add regulator support allowing _scale and _offset values to be established and exported. New features (Tools) * iio_generic_buffer - -A option to force enable all channels rather than faulting if some are already enabled (like -a does). Followup patches tidied this support up. Cleanups (Core) - Use kmalloc_array in iio_scan_mask_set. - Take event_attrs field of iio_info structure constant - Staging todo list updates. Most of it was long done. - MAINTAINERS had a wrong directory listing. Cleanups (Drivers) * Missing i2c trivial devices entries. * ad5592r - Fix an endian type related sparse warnings. * ad7150 - Constify the event attribute_group structures. * ad7152 - Add some blank lines to improve readability. - Sampling frequency control via chan-info element rather than hand rolled attributes. - add a new lock to avoid use of mlock for non state change related locking. * ad7280 - Constify atrribute_group structure (second patch covers the event ones) * ad7606 (Lars is driving most of the cleanup on this with some additions from Eva) - Fix improper setting of oversampling pins. This has been broken a very long time in this staging driver, so not going to push this back to stable. - Implement oversampling configuration via the chan_info mask element. - Remove an unused int_vref_mv field. - Remove a reundant name field from ad7606_chip_info. - Remove default device configuration from platform_data in favour of whatever the power on defaults are. - Remove out of band error reporting in the kernel log as not providing much information. - Fix oversampling ratio by having 1 be the value for no oversampling. - Avoid allocating buffer for each data capture. - Factor out common code between periodic and one-shot capture. - Move set_drvdat into common code. - Let the common probe function return int rather than jumping through an ERR_PTR. - Pass struct device * into common remove to simplify code. - Always run trigger handler only once per event (no one can remember why it was being possibly done twice). - Move over to the GPIO descriptor API to shorten and clarify code. - Move the buffer code into the main file as it's not optional and is now rather short in this driver. - Fix the naming of the supply regulator. - Rework regulator handling to handle errors including deferred probing. - Tidy up a ptr_err or 0 return. * ad7746 - Sampling frequency control via info_mask element rather than hand rolled * ad7758 - Sampling frequency control via info_mask element rather than hand rolled attributes. * ad7816 - Constify the event attribute_group structure. * adt7316 - Constify the event attribute group structures. * ak8974 - Cleanup some sparse warnings about endian types. * ak8975 - Cleanup some sparse warnings about endian types. * bmi160 - Spare endian warning cleanups. * isl29018 (towards staging graduation) - Remove unusedvariables and defines. - Improve consistency of error handling. - Signed / unsigned comparison fixes. - Use the IIO_DEVICE_ATTR_{RO, RW} macros - Fix a race in in_illuminance_scale_available_show. - Cleanup exit points of _read_raw - Sanity check if in suspended state during a write_raw call as was already done for read_raw. - Document device tree bidnings. - Document infrared supression controls. - Add some newlines to improve readability and drop one that shouldn't be there. - Fix a poorly named functions name. - Fix multiline coment syntax. - Tidy up a pair or return statements by unifying them. - Rename description in Kconfig for consistency with similar drivers. * lidar - cleanup power management by dropping unnecessary call. * ltr501 - Use the claim_direct_mode helpers. Fix a race condition along the way. * max1027 - Fix a dubious x | !y sparse warning. - Use the new iio_trigger_validate_own_device helper. * max440000 - Clean up some sparse warnings about endian types. * mcp4725 - Use the regulator framework to establish the reference voltage rather than getting it from platform data. - Tidy up a comment typo. - Fix a wrong PTR_ERR query (wrong regulator). * mma7660 - Take a mma7660_nscale static. * mma8452 - Use the new iio_trigger_validate_own_device helper. - Use claim_direct_mode helpers - fix a race condition along the way. * mpl3115 - Use claim_direct_mode helpers - fix a race condition along the way. * ms65611 - Tidy up regulator error handling and clean out a static warning in the mix. * sca3000 - Avoid a potential unitialized variable if a hardware read returns a value that isn't actually supported (mostly warning supression). - Fix a use before setting of the indio_dev->buffer pointer. Broken for a very long time so not going to rush this into stable. - Merge buffer file with core file. We used to always split these. Sometimes it's just not worth the hassle. In this case the device's main feature is it's hardware fifos so unlikely anyone would want to run it without. - Drop the sca3000_register_ring_funcs function as it's a pointless wrapper once we have only one file. - Fix cleaning of flag + setting of size of scan. Without this you can't start the buffer twice and expect sensible (or any) results. Again, broken for a long time so not heading for stable. - Drop the custom watershed setting ABI - for now we'll just support one value. - Move to a hybrid hard / soft buffer design (how we've been doing it for similar devices for a while now!) - Cleanup some unusued variables. - Use a fake channel to support core handling of freefall event registration. - Cleanup the register defines. - Fix an off by one error in axis due to IIO_NO_MOD taking up the 0 value. Been broken since first admission of IIO to the staging tree. - Add readback of the 3db low pass filter frequency and later writing allowing droppign of custom measurement mode attributes as they can be represented by the filter choices that is their main characteristic. - Drop non standard revision attr and replace with dev_info on probe. - Avoid a race in probe. - Various formatting fixes. - Kernel-docify docs that were very nearly in the write format. * tsl2583 - Constify attribute_group structure. * zpa2326 - Drop a redundant DEBUG ifdef. Cleanups (Tools) * iio_generic_buffer - Fix the ? arguement. Previously it sort of worked as you got the help message as a result of it not recognising the arguement.
2016-10-23tools: iio: iio_generic_buffer: drop unneeded parenthesesEva Rachel Retuya1-2/+2
Remove extra parentheses introduced in commit <73e176a tools: iio: iio_generic_buffer: add -A to force-enable all channels>. Suggested-by: Peter Meerwald-Stadler <[email protected]> Signed-off-by: Eva Rachel Retuya <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]>
2016-10-23tools: iio: iio_generic_buffer: rename and change type of force variableEva Rachel Retuya1-4/+5
Replace the type of 'force' flag from int to bool and at the same time rename it to 'force_autochannels' for better readability. Suggested-by: Peter Meerwald-Stadler <[email protected]> Signed-off-by: Eva Rachel Retuya <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]>
2016-10-23tools: iio: iio_generic_buffer: add -A to force-enable all channelsEva Rachel Retuya1-5/+12
If attribute/s is/are already enabled (by default or via scripts or manual interaction), issuing -a will fail to enable the channels thereby one has to manually disable the said attribute/s before proceeding with auto-enabling. Add a command-line option -A to force-activate all channels regardless of their current state. Suggested-by: Alison Schofield <[email protected]> Signed-off-by: Eva Rachel Retuya <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]>
2016-10-22reuseport, bpf: add test case for bpf_get_numa_node_idDaniel Borkmann3-4/+263
The test case is very similar to reuseport_bpf_cpu, only that here we select socket members based on current numa node id. # numactl -H available: 2 nodes (0-1) node 0 cpus: 0 1 2 3 4 5 12 13 14 15 16 17 node 0 size: 128867 MB node 0 free: 120080 MB node 1 cpus: 6 7 8 9 10 11 18 19 20 21 22 23 node 1 size: 96765 MB node 1 free: 87504 MB node distances: node 0 1 0: 10 20 1: 20 10 # ./reuseport_bpf_numa ---- IPv4 UDP ---- send node 0, receive socket 0 send node 1, receive socket 1 send node 1, receive socket 1 send node 0, receive socket 0 ---- IPv6 UDP ---- send node 0, receive socket 0 send node 1, receive socket 1 send node 1, receive socket 1 send node 0, receive socket 0 ---- IPv4 TCP ---- send node 0, receive socket 0 send node 1, receive socket 1 send node 1, receive socket 1 send node 0, receive socket 0 ---- IPv6 TCP ---- send node 0, receive socket 0 send node 1, receive socket 1 send node 1, receive socket 1 send node 0, receive socket 0 SUCCESS Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Alexei Starovoitov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2016-10-21perf c2c report: Add --show-all optionJiri Olsa2-2/+8
Normally we limit the main list to contain only entries with HITM % value > 0.0005, but it might be useful to display all captured entries. Adding --show-all option for that. Requested-and-Tested-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Add --no-source optionJiri Olsa2-5/+11
Add a possibility to disable source line column with new --no-source option. It source line data could take lot of time to retrieve, so it could be a performance burden for big data. Signed-off-by: Jiri Olsa <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c: Add man page and creditsJiri Olsa2-0/+287
Add man page for c2c command and credits to builtin-c2c.c file. Tested-by: Arnaldo Carvalho de Melo <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Add help windowsJiri Olsa1-2/+17
Adding help windows to display key/action mappings for both browsers. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Iterate node display in browserJiri Olsa1-0/+4
Adding TUI support to switch between Node entry versions in real time with 'n' key. Signed-off-by: Jiri Olsa <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Add support to manage symbol name lengthJiri Olsa1-1/+32
The width of symbol and source line entries could get really long and not convenient to display. Adding support to display only patrt of such strings and possibility to switch to full length by uing --full-symbols option or 's' key in TUI browser. Signed-off-by: Jiri Olsa <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Add cacheline index entryJiri Olsa1-3/+61
It's convenient to have an index for each cacheline to help discussions about results over the phone. Add new 'Index' and 'Num' fields in main and single cacheline tables. $ perf c2c report ================================================= Shared Data Cache Line Table ================================================= # # Total Lcl ----- LLC Load Hitm ----- # Index Cacheline records Hitm Total Lcl Rmt ... # ..... .................. ....... ....... ....... ....... ....... # 0 0xffff880036233b40 1 11.11% 1 1 0 1 0xffff88009ccb2900 1 11.11% 1 1 0 2 0xffff8800b5b3bc40 7 11.11% 1 1 0 ... ================================================= Shared Cache Line Distribution Pareto ================================================= # # ----- HITM ----- -- Store Refs -- Data address # Num Rmt Lcl L1 Hit L1 Miss Offset Pid ... # ..... ....... ....... ....... ....... .................. ....... # ------------------------------------------------------------- 0 0 1 0 0 0xffff880036233b40 ------------------------------------------------------------- 0.00% 100.00% 0.00% 0.00% 0x30 0 ------------------------------------------------------------- 1 0 1 0 0 0xffff88009ccb2900 ------------------------------------------------------------- 0.00% 100.00% 0.00% 0.00% 0x28 549 ... Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Recalc width of global sort entriesJiri Olsa1-0/+12
Using resort callbacks to compute the columns' width. Computing only the global ones, c2c entries have fixed width only. Signed-off-by: Jiri Olsa <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Allow to set cacheline sort fieldsJiri Olsa1-17/+102
Allowing user to configure the way the single cacheline data are sorted after being sorted by offset. Adding 'c' option to specify sorting fields for single cacheline: -c, --coalesce <coalesce fields> coalesce fields: pid,tid,iaddr,dso It's allowed to use following combination of fields: pid - process pid tid - process tid iaddr - code address dso - shared object Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Add support to choose local HITMsJiri Olsa1-19/+95
Currently we sort and limit displayed data based on the remote HITMs count. Adding support to switch to local HITMs via --display option: --display ... lcl,rmt Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Limit the cachelines table entriesJiri Olsa3-1/+38
Add a limit for entries number of the cachelines table entries. By default now it's the 0.0005% minimum of remote HITMs. Also display only cachelines with remote hitm or store data. Signed-off-by: Jiri Olsa <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] [ Disabled for now ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Allow to report callchainsJiri Olsa1-0/+67
Add --call-graph option to properly setup callchain code. Adding default settings to display callchains whenever they are stored in the perf.data. Committer Notes: Testing it: [root@jouet ~]# perf c2c record -a -g sleep 5 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 5.331 MB perf.data (4263 samples) ] [root@jouet ~]# perf evlist -v cpu/mem-loads,ldlat=30/P: type: 4, size: 112, config: 0x1cd, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|CALLCHAIN|ID|CPU|PERIOD|DATA_SRC|WEIGHT, read_format: ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, task: 1, precise_ip: 3, mmap_data: 1, sample_id_all: 1, mmap2: 1, comm_exec: 1, { bp_addr, config1 }: 0x1f cpu/mem-stores/P: type: 4, size: 112, config: 0x82d0, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|CALLCHAIN|ID|CPU|PERIOD|DATA_SRC|WEIGHT, read_format: ID, disabled: 1, inherit: 1, freq: 1, precise_ip: 3, sample_id_all: 1 [root@jouet ~]# perf c2c report --stats ================================================= Trace Event Information ================================================= Total records : 4263 Locked Load/Store Operations : 220 Load Operations : 2130 Loads - uncacheable : 1 Loads - IO : 7 Loads - Miss : 86 Loads - no mapping : 5 Load Fill Buffer Hit : 609 Load L1D hit : 612 ================================================= Trace Event Information ================================================= Total records : 4263 Locked Load/Store Operations : 220 Load Operations : 2130 Loads - uncacheable : 1 Loads - IO : 7 Loads - Miss : 86 Loads - no mapping : 5 Load Fill Buffer Hit : 609 Load L1D hit : 612 Load L2D hit : 27 Load LLC hit : 607 Load Local HITM : 15 Load Remote HITM : 0 Load Remote HIT : 0 Load Local DRAM : 176 Load Remote DRAM : 0 Load MESI State Exclusive : 176 Load MESI State Shared : 0 Load LLC Misses : 176 LLC Misses to Local DRAM : 100.0% LLC Misses to Remote DRAM : 0.0% LLC Misses to Remote cache (HIT) : 0.0% LLC Misses to Remote cache (HITM) : 0.0% Store Operations : 2133 Store - uncacheable : 0 Store - no mapping : 1 Store L1D Hit : 1967 Store L1D Miss : 165 No Page Map Rejects : 145 Unable to parse data source : 0 ================================================= Global Shared Cache Line Event Information ================================================= Total Shared Cache Lines : 15 Load HITs on shared lines : 26 Fill Buffer Hits on shared lines : 7 L1D hits on shared lines : 3 L2D hits on shared lines : 0 LLC hits on shared lines : 16 Locked Access on shared lines : 2 Store HITs on shared lines : 8 Store L1D hits on shared lines : 7 Total Merged records : 23 ================================================= c2c details ================================================= Events : cpu/mem-loads,ldlat=30/P : cpu/mem-stores/P [root@jouet ~]# [root@jouet ~]# perf c2c report Shared Data Cache Line Table (2378 entries) Total --- LLC Load Hitm -- -- Store Reference - - Load Dram - LLC Total - Core Load Hit - Cacheline records %hitm Total Lcl Rmt Total L1Hit L1Miss Lcl Rmt Ld Miss Loads FB L1 L2 - 0xffff880024380c00 10 0.00% 0 0 0 6 6 0 0 0 0 4 1 3 0 - 0.13% _raw_spin_lock_irqsave - 0.07% ep_poll sys_epoll_wait do_syscall_64 return_from_SYSCALL_64 + 0x103573 - 0.05% ep_poll_callback __wake_up_common - __wake_up_sync_key - 0.02% pipe_read __vfs_read vfs_read sys_read do_syscall_64 return_from_SYSCALL_64 0xfdad + 0.02% sock_def_readable + 0.02% ep_scan_ready_list.constprop.12 + 0.00% mutex_lock + 0.00% __wake_up_common + 0xffff880024380c40 1 0.00% 0 0 0 1 1 0 0 0 0 0 0 0 0 + 0xffff880024380c80 1 0.00% 0 0 0 0 0 0 0 0 0 1 0 0 0 - 0xffff8800243e9f00 1 0.00% 0 0 0 1 1 0 0 0 0 0 0 0 0 enqueue_entity enqueue_task_fair activate_task ttwu_do_activate try_to_wake_up wake_up_process hrtimer_wakeup __hrtimer_run_queues hrtimer_interrupt local_apic_timer_interrupt smp_apic_timer_interrupt apic_timer_interrupt cpuidle_enter call_cpuidle help ------------- And when presing 'd' to see the cacheline details: Cacheline 0xffff880024380c00 ----- HITM ----- -- Store Refs -- --------- cycles ----- cpu Rmt Lcl L1 Hit L1 Miss Off Pid Tid rmt hitm lcl hitm load cnt Symbol - 0.00% 0.00% 100.00% 0.00% 0x0 1473 1474:Chrome_ChildIOT 0 0 41 2 [k] _raw_spin_lock_irqsave [kernel] - _raw_spin_lock_irqsave - 51.52% ep_poll sys_epoll_wait do_syscall_64 return_from_SYSCALL_64 - 0x103573 47.19% 0 4.33% 0xc30bd - 35.93% ep_poll_callback __wake_up_common - __wake_up_sync_key - 18.20% pipe_read __vfs_read vfs_read sys_read do_syscall_64 return_from_SYSCALL_64 0xfdad - 17.73% sock_def_readable unix_stream_sendmsg sock_sendmsg ___sys_sendmsg __sys_sendmsg sys_sendmsg do_syscall_64 return_from_SYSCALL_64 __GI___libc_sendmsg 0x12c036af1fc0 0x16a4050 0x894928ec83485354 + 12.45% ep_scan_ready_list.constprop.12 + 0.00% 0.00% 0.00% 0.00% 0x8 1473 1474:Chrome_ChildIOT 0 0 102 1 [k] mutex_lock [kernel] + 0.00% 0.00% 0.00% 0.00% 0x38 1473 1473:chrome 0 0 88 1 [k] __wake_up_common [kernel] help Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Add c2c related stats stdio outputJiri Olsa1-6/+27
Display c2c related configuration options/setup. So far it's output of monitored events: $ perf c2c report --stats ... ================================================= c2c details ================================================= Events : cpu/mem-loads,ldlat=50/pp : cpu/mem-stores/pp Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Add shared cachelines stats stdio outputJiri Olsa1-1/+61
Display global shared cachelines related stats table as part of the stdio output or when --stats option is speicified: $ perf c2c report --stats ... ================================================= Global Shared Cache Line Event Information ================================================= Total Shared Cache Lines : 1384 Load HITs on shared lines : 5995 Fill Buffer Hits on shared lines : 1726 L1D hits on shared lines : 1943 L2D hits on shared lines : 0 LLC hits on shared lines : 1360 Locked Access on shared lines : 1993 Store HITs on shared lines : 1504 Store L1D hits on shared lines : 1446 Total Merged records : 3527 Original-patch-by: Dick Fowles <[email protected]> Original-patch-by: Don Zickus <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Add global stats stdio outputJiri Olsa1-0/+56
Display global stats table as part of the stdio output or when --stats option is speicified: $ perf c2c report --stats ================================================= Trace Event Information ================================================= Total records : 41237 Locked Load/Store Operations : 4075 Load Operations : 20526 Loads - uncacheable : 0 Loads - IO : 0 Loads - Miss : 552 Loads - no mapping : 31 Load Fill Buffer Hit : 7333 Load L1D hit : 6398 Load L2D hit : 144 Load LLC hit : 4889 Load Local HITM : 1185 Load Remote HITM : 838 Load Remote HIT : 52 Load Local DRAM : 183 Load Remote DRAM : 106 Load MESI State Exclusive : 289 Load MESI State Shared : 0 Load LLC Misses : 1179 LLC Misses to Local DRAM : 15.5% LLC Misses to Remote DRAM : 9.0% LLC Misses to Remote cache (HIT) : 4.4% LLC Misses to Remote cache (HITM) : 71.1% Store Operations : 20711 Store - uncacheable : 0 Store - no mapping : 1 Store L1D Hit : 20158 Store L1D Miss : 552 No Page Map Rejects : 7 Unable to parse data source : 0 Original-patch-by: Dick Fowles <[email protected]> Original-patch-by: Don Zickus <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Add TUI cacheline browserJiri Olsa1-0/+81
Adding simple TUI cacheline browser. It triggers when you press 'd' in the main browser on the specific cacheline. It allows to navigate through cacheline's offsets and display callchains (implemented in following patches). Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21perf c2c report: Add main TUI browserJiri Olsa3-3/+117
Add the main cachelines TUI browser. It allows to navigate through cachelines and display their details and callchains (implemented in the following patches). Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Kim Phillips <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Link: http://lkml.kernel.org/r/20161021001706.GB23970@krava [ Handle file with no entries, fixing segfault reported by Kim Phillips ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-21ACPICA: MacOSX: Fix wrong sem_destroy definitionLv Zheng1-1/+6
ACPICA commit bbcb58f7875381d5c7f3d614bad3bc628a3f5cc6 The following build errors can be seen for MacOSX builds: .../osunixxf.c:882:9: error: 'sem_close' is deprecated [-Werror,-Wdeprecated-declarations] .../acmacosx.h:122:29: note: expanded from macro 'sem_destroy' #define sem_destroy sem_close sem_destroy() issue is caused by the wrong order of the following lines: #define #sem_destroy sem_close #include <semaphore.h> This patch fixes it by removing the buggy re-definitiion. Lv Zheng. Linux is not affected by this change. Link: https://github.com/acpica/acpica/commit/bbcb58f7 Signed-off-by: Lv Zheng <[email protected]> Signed-off-by: Bob Moore <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2016-10-21ACPICA: MacOSX: Fix anonymous semaphore implementationLv Zheng1-1/+5
ACPICA commit 01eb9a58f4cf6300a0feb838a02bc4b1895c76e8 ACPICA commit de5b9c0ef1ccb264cbe57c88f6dd3fbf8229f907 The following build errors can be seen for MacOSX builds: .../osunixxf.c:829:42: error: 'tmpnam' is deprecated: This function is provided for compatibility reasons only. Due to security concerns inherent in the design of tmpnam(3), it is highly recommended that you use mkstemp(3) instead. [-Werror,-Wdeprecated-declarations] Using of temporal file name functions can easily result in bus errors on MacOSX. This patch implements anonymous semaphore using an automatic increasing number. Lv Zheng. Linux is not affected by this change. Link: https://github.com/acpica/acpica/commit/01eb9a58 Link: https://github.com/acpica/acpica/commit/de5b9c0e Signed-off-by: Lv Zheng <[email protected]> Signed-off-by: Bob Moore <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2016-10-19perf c2c report: Add stdio output supportJiri Olsa1-0/+83
Adding the --stdio option output support. The output tables are dumped directly to the stdio. $ perf c2c report ================================================= Shared Data Cache Line Table ================================================= # # Total ----- LLC Load Hitm ----- ---- Store Reference ---- --- Load Dram ---- LLC Total ----- Core Load Hit ----- -- LLC Load Hit -- # Cacheline records %hitm Total Lcl Rmt Total L1Hit L1Miss Lcl Rmt Ld Miss Loads FB L1 L2 Llc Rmt # .................. ....... ....... ....... ....... ....... ....... ....... ....... ........ ........ ....... ....... ....... ....... ....... ........ ........ # 0xffff88000235f840 17 0.00% 0 0 0 17 17 0 0 0 0 0 0 0 0 0 0 ... ================================================= Shared Cache Line Distribution Pareto ================================================= # # ----- HITM ----- -- Store Refs -- Data address ---------- cycles ---------- cpu Shared # Rmt Lcl L1 Hit L1 Miss Offset Pid Tid rmt hitm lcl hitm load cnt Symbol Object Node # ....... ....... ....... ....... .................. ....... ..................... ........ ........ ........ ........ .................... ................. .... # ------------------------------------------------------ 0 0 17 0 0xffff88000235f840 ------------------------------------------------------ 0.00% 0.00% 5.88% 0.00% 0x0 11474 11474:kworker/u16:5 0 0 0 1 [k] rmap_walk_file [kernel.kallsyms] 0 0.00% 0.00% 5.88% 0.00% 0x10 11474 11474:kworker/u16:5 0 0 0 1 [k] lock_page_memcg [kernel.kallsyms] 0 0.00% 0.00% 11.76% 0.00% 0x20 11474 11474:kworker/u16:5 0 0 0 1 [k] page_mapping [kernel.kallsyms] 0 0.00% 0.00% 64.71% 0.00% 0x28 11474 11474:kworker/u16:5 0 0 0 1 [k] __test_set_page_writeback [kernel.kallsyms] 0 0.00% 0.00% 11.76% 0.00% 0x30 11474 11474:kworker/u16:5 0 0 0 1 [k] page_mapped [kernel.kallsyms] 0 ... Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-10-19perf c2c report: Set final resort fieldsJiri Olsa1-0/+31
Set resort/display fields for both cachelines and single cacheline displays. Cachelines are sorted on: rmt_hitm will be made configurable in following patches. Following fields are display for cachelines: dcacheline tot_recs percent_hitm tot_hitm,lcl_hitm,rmt_hitm stores,stores_l1hit,stores_l1miss dram_lcl,dram_rmt ld_llcmiss tot_loads ld_fbhit,ld_l1hit,ld_l2hit ld_lclhit,ld_rmthit The single cacheline is sort by: offset,rmt_hitm,lcl_hitm will be made configurable in following patches. Following fields are display for each cacheline: percent_rmt_hitm percent_lcl_hitm percent_stores_l1hit percent_stores_l1miss offset pid tid mean_rmt mean_lcl mean_load cpucnt symbol dso node Signed-off-by: Jiri Olsa <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Joe Mario <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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