aboutsummaryrefslogtreecommitdiff
path: root/tools/perf
AgeCommit message (Collapse)AuthorFilesLines
2017-07-21perf hists: Pass perf_sample to __symbol__inc_addr_samples()Taeung Song5-19/+27
To pave the way to use perf_sample fields in the annotate code, storing sample->period in sym_hist->addr->period and its sum in sym_hist->period. Signed-off-by: Taeung Song <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ split and adjusted from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-21perf annotate: Rename 'sum' to 'nr_samples' in struct sym_histTaeung Song3-15/+15
To make it more clear that it is the sum of all the nr_samples fields in the addr[] entries, i.e.: sym_hist->nr_samples = sum(sym_hist->addr[0 .. symbol__size(sym)]->nr_samples) Committer notes: Taeung had renamed it to total_samples, but using nr_samples, as in the added explanation above, looks clearer and establishes the direct connection, making clear it is about the _number_ of samples. Signed-off-by: Taeung Song <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-21perf annotate: Introduce struct sym_hist_entryTaeung Song4-29/+35
struct sym_hist has addr[] but it should have not only number of samples but also the sample period. So use new struct symhist_entry to pave the way to have that. Committer notes: This initial patch will only introduce the struct sym_hist_entry and use only the nr_samples member, which makes the code clearer and paves the way to save the period as well. Signed-off-by: Taeung Song <[email protected]> Suggested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-20tools include: Adopt strstarts() from the kernelArnaldo Carvalho de Melo11-25/+30
Replacing prefixcmp(), same purpose, inverted result, so standardize on the kernel variant, to reduce silly differences among tools/ and the kernel sources, making it easier for people to work in both codebases. And then doing: if (strstarts(option, "no-")) Looks clearer than doing: if (!prefixcmp(option, "no-")) To figure out if option starts witn "no-". Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Rusty Russell <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-20perf trace: Filter out 'sshd' in the tracer ancestry in syswide tracingArnaldo Carvalho de Melo1-1/+15
Avoiding a loop, so now its quite convenient to ssh to a machine and then simply do: # perf trace To trace all syscalls without causing a loop. This was possible using --filter-pids, i.e. once you noticed the loop, get the sshd pid and add it to --filter-pids, restarting the 'perf trace'. Now to figure out how to do that in a X terminal, the other common scenario, which is way more involved, as there are multiple processes communicating to process terminal activity... Using --filter-pids + '-e \!syscall,names,you,dont,need' may be a good approximation when having to do syswide tracing on your workstation. 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]>
2017-07-20perf trace: Introduce filter_loop_pids()Arnaldo Carvalho de Melo1-1/+11
No change in functionality, just to make clearer that what we want when filtering the tracer pid in a system wide tracing session is to avoid a feedback loop. This also paves the way for a more interesting loop avoidance algorithm, one that tries to figure out if we are in a ssh session, xterm, etc. 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]>
2017-07-20perf trace beauty clone: Suppress unused args according to 'flags' argArnaldo Carvalho de Melo1-1/+18
The 'parent_tidptr', 'child_tidptr' and 'tls' arguments to the 'clone' syscall are only used when certain flags are set in 'flags', suppress them when those aren't there. E.g: 9886.919 (0.236 ms): fetchmail/19298 clone(flags: CHILD_CLEARTID|CHILD_SETTID|0x11, child_stack: 0, child_tidptr: 0x7fe43f468590) = 19608 (fetchmail) 12876.052 (0.249 ms): qemu-system-x8/21238 clone(flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, child_stack: 0x7f48117fc770, parent_tidptr: 0x7f48117ff9d0, child_tidptr: 0x7f48117ff9d0, tls: 0x7f48117ff700) = 19611 (qemu-system-x86) 12876.555 (0.048 ms): worker/19611 clone(flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, child_stack: 0x7f480f7f8770, parent_tidptr: 0x7f480f7fb9d0, child_tidptr: 0x7f480f7fb9d0, tls: 0x7f480f7fb700) = 19612 (worker) 16575.240 (0.469 ms): fetchmail/19298 clone(flags: CHILD_CLEARTID|CHILD_SETTID|0x11, child_stack: 0, child_tidptr: 0x7fe43f468590) = 19613 (fetchmail) 20797.270 (0.335 ms): fetchmail/19298 clone(flags: CHILD_CLEARTID|CHILD_SETTID|0x11, child_stack: 0, child_tidptr: 0x7fe43f468590) = 19614 (fetchmail) 21228.585 (0.501 ms): vim/19519 clone(flags: CHILD_CLEARTID|CHILD_SETTID|0x11, child_stack: 0, child_tidptr: 0x7fbad6ac27d0) = 19615 (vim) 21232.193 (0.137 ms): bash/19615 clone(flags: CHILD_CLEARTID|CHILD_SETTID|0x11, child_stack: 0, child_tidptr: 0x7fad8bff49d0) = 19616 (bash) 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]>
2017-07-20perf trace beauty clone: Beautify syscall argumentsArnaldo Carvalho de Melo4-1/+68
Now, syswide tracing, selected entries: # trace -e clone 24417.203 ( 0.158 ms): bash/11323 clone(flags: CHILD_CLEARTID|CHILD_SETTID|0x11, child_stack: 0, parent_tidptr: 0, child_tidptr: 0x7f0778e5c9d0, tls: 0x7f0778e5c700) = 11325 (bash) ? ( ? ): bash/11325 ... [continued]: clone()) = 0 24419.355 ( 0.093 ms): bash/10586 clone(flags: CHILD_CLEARTID|CHILD_SETTID|0x11, child_stack: 0, parent_tidptr: 0, child_tidptr: 0x7f0778e5c9d0, tls: 0x7f0778e5c700) = 11326 (bash) ? ( ? ): bash/11326 ... [continued]: clone()) = 0 24419.744 ( 0.102 ms): bash/11326 clone(flags: CHILD_CLEARTID|CHILD_SETTID|0x11, child_stack: 0, parent_tidptr: 0, child_tidptr: 0x7f0778e5c9d0, tls: 0x7f0778e5c700) = 11327 (bash) ? ( ? ): bash/11327 ... [continued]: clone()) = 0 24420.138 ( 0.105 ms): bash/11327 clone(flags: CHILD_CLEARTID|CHILD_SETTID|0x11, child_stack: 0, parent_tidptr: 0, child_tidptr: 0x7f0778e5c9d0, tls: 0x7f0778e5c700) = 11328 (bash) ? ( ? ): bash/11328 ... [continued]: clone()) = 0 35747.722 ( 0.044 ms): gpg-agent/18087 clone(flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, child_stack: 0x7ff0755f6ff0, parent_tidptr: 0x7ff0755f79d0, child_tidptr: 0x7ff0755f79d0, tls: 0x7ff0755f7700) = 11329 (gpg-agent) ? ( ? ): gpg-agent/11329 ... [continued]: clone()) = 0 35748.359 ( 0.022 ms): gpg-agent/18087 clone(flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, child_stack: 0x7ff075df7ff0, parent_tidptr: 0x7ff075df89d0, child_tidptr: 0x7ff075df89d0, tls: 0x7ff075df8700) = 11330 (gpg-agent) ? ( ? ): gpg-agent/11330 ... [continued]: clone()) = 0 35781.422 ( 0.452 ms): NetworkManager/1112 clone(flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, child_stack: 0x7f2f1fffedb0, parent_tidptr: 0x7f2f1ffff9d0, child_tidptr: 0x7f2f1ffff9d0, tls: 0x7f2f1ffff700) = 11331 (NetworkManager) ? ( ? ): NetworkManager/11331 ... [continued]: clone()) = 0 Need to improve the formatting of the second return, to the child, this cset only focused on the argument formatting. If we trace just one pid: # trace -e clone -p 19863 0.349 ( 0.025 ms): Chrome_IOThrea/19863 clone(flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, child_stack: 0x7ffb84eaac70, parent_tidptr: 0x7ffb84eab9d0, child_tidptr: 0x7ffb84eab9d0, tls: 0x7ffb84eab700) = 11637 (Chrome_IOThread) 0.392 ( 0.013 ms): Chrome_IOThrea/19863 clone(flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, child_stack: 0x7ffb664b8c70, parent_tidptr: 0x7ffb664b99d0, child_tidptr: 0x7ffb664b99d0, tls: 0x7ffb664b9700) = 11638 (Chrome_IOThread) 0.573 ( 0.015 ms): Chrome_IOThrea/19863 clone(flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, child_stack: 0x7ffb6046cc70, parent_tidptr: 0x7ffb6046d9d0, child_tidptr: 0x7ffb6046d9d0, tls: 0x7ffb6046d700) = 11639 (Chrome_IOThread) 0.617 ( 0.014 ms): Chrome_IOThrea/19863 clone(flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, child_stack: 0x7ffb730dcc70, parent_tidptr: 0x7ffb730dd9d0, child_tidptr: 0x7ffb730dd9d0, tls: 0x7ffb730dd700) = 11640 (Chrome_IOThread) 4.350 ( 0.065 ms): Chrome_IOThrea/19863 clone(flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, child_stack: 0x7ffb720d9c70, parent_tidptr: 0x7ffb720da9d0, child_tidptr: 0x7ffb720da9d0, tls: 0x7ffb720da700) = 11642 (Chrome_IOThread) 5.642 ( 0.079 ms): Chrome_IOThrea/19863 clone(flags: VM|FS|FILES|SIGHAND|THREAD|SYSVSEM|SETTLS|PARENT_SETTID|CHILD_CLEARTID, child_stack: 0x7ffb718d8c70, parent_tidptr: 0x7ffb718d99d0, child_tidptr: 0x7ffb718d99d0, tls: 0x7ffb718d9700) = 11643 (Chrome_IOThread) ^C# We'll also have to fix the argument ordering in different arches, probably having multiple syscall_fmt entries with each possible order and then use perf_evsel__env_arch() (if dealing with a perf.data file) or the current system info, for live sessions. 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]>
2017-07-20tools include uapi: Grab a copy of linux/sched.hArnaldo Carvalho de Melo2-0/+2
So that we make sure we have recent enough defines for things such as 'perf trace' system call argument beautifiers. For instance, the 'clone' syscall argument 'flag' needs to use CLONE_NEWCGROUP, and that is not available in RHEL7. 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]>
2017-07-20perf trace: Allow specifying names to syscall arguments formattersArnaldo Carvalho de Melo1-2/+13
For tracepointless syscalls, like clone, otherwise get them from the tracepoint's /format file. 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]>
2017-07-20perf trace: Allow specifying number of syscall args for tracepointless syscallsArnaldo Carvalho de Melo1-1/+5
When we don't have syscalls:sys_{enter,exit}_NAME, we had to resort to dumping all the 6 syscall arguments, fix it by providing that info for such syscalls, like 'clone'. 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]>
2017-07-20perf trace: Ditch __syscall__arg_val() variant, not needed anymoreArnaldo Carvalho de Melo1-7/+2
All callers now can use syscall__arg_val(arg, idx), be it to iterate thru the syscall arguments while taking into account alignment, or to get values for other arguments that affect how the current argument should be formatted (think of fcntl's 'cmd' and 'arg' arguments). 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]>
2017-07-20perf trace: Use the syscall_fmt formatters without a tracepointArnaldo Carvalho de Melo1-24/+30
Previously we only used the syscall_fmt when we had sc->tp_format set, i.e. when we found the (enter, exit) pair in tracefs/events/syscalls/. But we really only need to use what is in sc->arg_fmt to apply the arg beautifiers to the syscall argument values, so do it. With this we will be able to provide formatters to the "clone" syscall, which doesn't have entries in tracefs/events/syscalls/. 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]>
2017-07-20perf trace: Allow allocating sc->arg_fmt even without the syscall tracepointArnaldo Carvalho de Melo1-10/+21
At least "clone" doesn't have (enter, exit) entries tracefs/events/syscalls/, but we can provide a syscall_fmt and use it instead, as will be done for "clone" in the next cset. 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]>
2017-07-20perf trace beauty mmap: Ignore 'fd' and 'offset' args for MAP_ANONYMOUSArnaldo Carvalho de Melo1-0/+3
Just suppress them, not used by the 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]>
2017-07-20perf trace: Add missing ' = ' in the default formatting of syscall returnsArnaldo Carvalho de Melo1-1/+1
We lost it recently, put it back. Before: 789.499 ( 0.001 ms): libvirtd/1175 lseek(fd: 22, whence: CUR) 4328 After: 789.499 ( 0.001 ms): libvirtd/1175 lseek(fd: 22, whence: CUR) = 4328 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]> Fixes: 1f63139c3f8a ("perf trace beauty: Simplify syscall return formatting") Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-20perf intel-pt: Always set no branch for dummy eventKan Liang1-0/+2
An earlier kernel patch allowed enabling PT and LBR at the same time on Goldmont. commit ccbebba4c6bf ("perf/x86/intel/pt: Bypass PT vs. LBR exclusivity if the core supports it") However, users still cannot use Intel PT and LBRs simultaneously. $ sudo perf record -e cycles,intel_pt//u -b -- sleep 1 Error: PMU Hardware doesn't support sampling/overflow-interrupts. PT implicitly adds dummy event in perf tool. dummy event is software event which doesn't support LBR. Always setting no branch for dummy event in Intel PT. Signed-off-by: Kan Liang <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-20perf intel-pt: Set no_aux_samples for the tracking eventKan Liang1-0/+1
The reason of introducing the tracking event (a dummy software event) is to collect side-band information. Additional sampling is wasteful. no_aux_samples should be set for tracking event. Signed-off-by: Kan Liang <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf report: Show branch type in callchain entryJin Yao3-19/+50
Show branch type in callchain entry. The branch type is printed with other LBR information (such as cycles/abort/...). For example: perf record -g -j any,save_type perf report --branch-history --stdio --no-children 38.50% div.c:45 [.] main div | ---main div.c:42 (RET CROSS_2M cycles:2) compute_flag div.c:28 (cycles:2) compute_flag div.c:27 (RET CROSS_2M cycles:1) rand rand.c:28 (cycles:1) rand rand.c:28 (RET CROSS_2M cycles:1) __random random.c:298 (cycles:1) __random random.c:297 (COND_BWD CROSS_2M cycles:1) __random random.c:295 (cycles:1) __random random.c:295 (COND_BWD CROSS_2M cycles:1) __random random.c:295 (cycles:1) __random random.c:295 (RET CROSS_2M cycles:9) Change log v6: Remove the branch_type_str() since it's moved to branch.c. v5: Rewrite the branch info print code in util/callchain.c. v4: Comparing to previous version, the major changes are: Signed-off-by: Yao Jin <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Kan Liang <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf report: Show branch type statistics for stdio modeJin Yao2-4/+26
Show the branch type statistics at the end of perf report --stdio. For example: perf report --stdio COND_FWD: 28.5% COND_BWD: 9.4% CROSS_4K: 0.7% CROSS_2M: 14.1% COND: 37.9% UNCOND: 0.2% IND: 6.7% CALL: 26.5% RET: 28.7% SYSRET: 0.0% The branch types are: COND_FWD: conditional forward COND_BWD: conditional backward COND: conditional branch UNCOND: unconditional branch IND: indirect CALL: function call IND_CALL: indirect function call RET: function return SYSCALL: syscall SYSRET: syscall return COND_CALL: conditional function call COND_RET: conditional function return CROSS_4K and CROSS_2M: They are the metrics checking for branches cross 4K or 2MB pages. It's an approximate computing. We don't know if the area is 4K or 2MB, so always compute both. To make the output simple, if a branch crosses 2M area, CROSS_4K will not be incremented. Change log v7: Since the common branch type definitions are changed, some tags/strings are updated accordingly. v6: Remove branch_type_stat_display() since it's moved to branch.c. v5: Remove the unnecessary sort__mode checking in hist_iter__branch_callback(). v4: Comparing to previous version, the major changes are: Add the computing of JCC forward/JCC backward and cross page checking by using the from and to addresses. Signed-off-by: Yao Jin <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Kan Liang <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf util: Create branch.c/.h for common branch functionsJin Yao4-1/+174
Create new util/branch.c and util/branch.h to contain the common branch functions. Such as: branch_type_count(): Count the numbers of branch types branch_type_name() : Return the name of branch type branch_type_stat_display(): Display branch type statistics info branch_type_str(): Construct the branch type string. The branch type is saved in branch_flags. Change log: v8: Change PERF_BR_NONE to PERF_BR_UNKNOWN. v7: Since the common branch type name is changed (e.g. JCC->COND), this patch is performed the modification accordingly. v6: Move that multiline conditional code inside {} brackets. Move branch_type_stat_display() from builtin-report.c to branch.c. Move branch_type_str() from callchain.c to branch.c. v5: It's a new patch in v5 patch series. Signed-off-by: Yao Jin <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Kan Liang <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ Don't use 'index' and 'stat' as names for variables, it shadows global decls in older distros ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf report: Refactor the branch info printing codeJin Yao1-59/+41
The branch info such as predicted/cycles/... are printed at the callchain entries. For example: perf report --branch-history --no-children --stdio --1.07%--main div.c:39 (predicted:52.4% cycles:1 iterations:17) main div.c:44 (predicted:52.4% cycles:1) main div.c:42 (cycles:2) compute_flag div.c:28 (cycles:2) compute_flag div.c:27 (cycles:1) rand rand.c:28 (cycles:1) rand rand.c:28 (cycles:1) __random random.c:298 (cycles:1) __random random.c:297 (cycles:1) __random random.c:295 (cycles:1) __random random.c:295 (cycles:1) __random random.c:295 (cycles:1) But the current code is difficult to maintain and extend. This patch refactors the code for easy maintenance. Change log: v6: 1. Put the multiline condition code into {} brackets in counts_str_build() 2. Keep the original display order, that is: predicted, abort, cycles, iterations v5: It's a new patch in v5 patch series. Signed-off-by: Yao Jin <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Kan Liang <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ Don't use 'index' as a name for a variable, it shadows a globa decl in older distros ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf record: Create a new option save_type in --branch-filterJin Yao2-0/+2
The option indicates the kernel to save branch type during sampling. One example: perf record -g --branch-filter any,save_type <command> Signed-off-by: Yao Jin <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Kan Liang <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf header: Add event desc to pipe-mode headerDavid Carrillo-Cisneros1-2/+17
Add event descriptor to perf header output in pipe-mode. After this patch: $ perf record -e cycles sleep 1 | perf report --header # ======== # captured on: Mon Jun 5 22:52:13 2017 # ======== # # hostname : lphh20 # os release : 4.3.5-smp-801.43.0.0 # perf version : 4.12.rc2.g439987 # arch : x86_64 # nrcpus online : 72 # nrcpus avail : 72 # cpudesc : Intel(R) Xeon(R) CPU E5-2696 v3 @ 2.30GHz # cpuid : GenuineIntel,6,63,2 # total memory : 264134144 kB # cmdline : /root/perf record -e cycles sleep 1 # event : name = cycles, , size = 112, { sample_period, sample_freq } = 4000, sample_type = IP|TID|TIME|PERIOD, disabled = 1, inherit = 1, mmap = 1, comm = 1, freq = 1, enable_on_exec = 1, task = 1, sample_id_all = 1, exclude_guest = 1, mmap2 = 1, comm_exec = 1 # CPU_TOPOLOGY info available, use -I to display # NUMA_TOPOLOGY info available, use -I to display # pmu mappings: intel_bts = 6, cpu = 4, msr = 49, uncore_cbox_10 = 36, uncore_cbox_11 = 37, uncore_cbox_12 = 38, uncore_cbox_13 = 39, uncore_cbox_14 = 40, uncore_cbox_15 = 41, uncore_cbox_16 = 42, uncore_cbox_17 = 43, software = 1, power = 7, uncore_irp = 24, uncore_pcu = 48, tracepoint = 2, uncore_imc_0 = 16, uncore_imc_1 = 17, uncore_imc_2 = 18, uncore_imc_3 = 19, uncore_imc_4 = 20, uncore_imc_5 = 21, uncore_imc_6 = 22, uncore_imc_7 = 23, uncore_qpi_0 = 8, uncore_qpi_1 = 9, uncore_cbox_0 = 26, uncore_cbox_1 = 27, uncore_cbox_2 = 28, uncore_cbox_3 = 29, uncore_cbox_4 = 30, uncore_cbox_5 = 31, uncore_cbox_6 = 32, uncore_cbox_7 = 33, uncore_cbox_8 = 34, uncore_cbox_9 = 35, uncore_r2pcie = 13, uncore_r3qpi_0 = 10, uncore_r3qpi_1 = 11, uncore_r3qpi_2 = 12, uncore_sbox_0 = 44, uncore_sbox_1 = 45, uncore_sbox_2 = 46, uncore_sbox_3 = 47, breakpoint = 5, uncore_ha_0 = 14, uncore_ha_1 = 15, uncore_ubox = 25 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.000 MB (null) ] Prior to this patch, event was not printed. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf tools: Add feature header record to pipe-modeDavid Carrillo-Cisneros12-3/+141
Add header record types to pipe-mode, reusing the functions used in file-mode and leveraging the new struct feat_fd. For alignment, check that synthesized events don't exceed pagesize. Add the perf_event__synthesize_feature event call back to process the new header records. Before this patch: $ perf record -o - -e cycles sleep 1 | perf report --stdio --header [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.000 MB - ] ... After this patch: $ perf record -o - -e cycles sleep 1 | perf report --stdio --header # ======== # captured on: Mon May 22 16:33:43 2017 # ======== # # hostname : my_hostname # os release : 4.11.0-dbx-up_perf # perf version : 4.11.rc6.g6277c80 # arch : x86_64 # nrcpus online : 72 # nrcpus avail : 72 # cpudesc : Intel(R) Xeon(R) CPU E5-2696 v3 @ 2.30GHz # cpuid : GenuineIntel,6,63,2 # total memory : 263457192 kB # cmdline : /root/perf record -o - -e cycles -c 100000 sleep 1 # HEADER_CPU_TOPOLOGY info available, use -I to display # HEADER_NUMA_TOPOLOGY info available, use -I to display # pmu mappings: intel_bts = 6, uncore_imc_4 = 22, uncore_sbox_1 = 47, uncore_cbox_5 = 33, uncore_ha_0 = 16, uncore_cbox [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.000 MB - ] ... Support added for the subcommands: report, inject, annotate and script. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf tool: Add show_feature_header to perf_toolDavid Carrillo-Cisneros3-0/+14
Add show_feat_hdr to control level of printed information of feature headers. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf header: Change FEAT_OP* macrosDavid Carrillo-Cisneros1-28/+44
There are three FEAT_OP* macros: - FEAT_OPA: for features without process record. - FEAT_OPP: for features with process record. - FEAT_OPF: like FEAT_OPP but to show only if show_full_info flags is set. To add pipe-mode headers we need yet another variation of the macros (one to specify whether a feature generates an auxiliar record). Instead, we redefine macros so that: - show_full_info is specified as an argument (to remove the FEAT_OPF variation) and, - it always sets "process" handler (to remove the FEAT_OPA variation). Individual process handlers can be NULLed individually. This allows to define two variations only: - FEAT_OPR: synthesizes auxiliar event record. - FEAT_OPN: doesn't synthesize an auxiliar event record. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf header: Add a buffer to struct feat_fdDavid Carrillo-Cisneros1-5/+70
Extend struct feat_fd to use a temporal buffer in pipe-mode, instead of perf.data's file descriptor. The header features build_id and aux_trace already have logic to print in file-mode that heavily rely on lseek the file. For now, leave such features inactive in pipe-mode and print a warning if their functions are called in pipe-mode. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf header: Make write_pmu_mappings pipe-mode friendlyDavid Carrillo-Cisneros1-10/+11
In pipe-mode, we will operate over a buffer instead of a file descriptor but write_pmu_mappings uses lseek to move over the perf.data file. Refactor write_pmu_mappings to avoid the usage of lseek and allow reusing the same logic in pipe-mode (next patch). Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf header: Use struct feat_fd in read header recordsDavid Carrillo-Cisneros1-51/+50
As preparation for using header records in-pipe mode, replace int fd with struct feat_fd ff in read functions for all header record types. This patch does not change behavior. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf header: Don't pass struct perf_file_section to process_##_featDavid Carrillo-Cisneros1-34/+24
struct perf_file_section is used in process_##_feat as container for size and offset in the file descriptor. These attributes are meaninful in pipe-mode but struct perf_file_section is not. Add offset and size variables to struct feat_fd to store perf_file_section's values in file-mode. Later on, the same variables can be reused for pipe-mode. This patch does not change behavior. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf header: Use struct feat_fd to process header recordsDavid Carrillo-Cisneros1-85/+79
As preparation for using header records in pipe-mode, replace int fd with struct feat_fd ff in process functions for all header record types. This patch does not change behavior. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf header: Use struct feat_fd for printDavid Carrillo-Cisneros1-55/+47
As preparation for using header records in pipe mode, replace int fd with struct feat_fd ff in print functions for all header record types. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf header: Add struct feat_fd for writeDavid Carrillo-Cisneros4-111/+138
Introduce struct feat_fd. This patch uses it as a wrapper around fd in write_* functions for feature headers. Next patches will extend its functionality to other feature header functions. This patch does not change behavior. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf header: Revamp do_write()David Carrillo-Cisneros3-10/+8
Now that writen takes a const buffer, use it in do_write instead of duplicating its functionality. Export do_write to use it consistently in header.c and build_id.c . Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf util: Add const modifier to buf in "writen" functionDavid Carrillo-Cisneros2-3/+5
Make buf in helper function "writen" constant to simplify the life of its callers. This requires to hack a cast of buf prior to passing it to "ion" which is simpler than the alternative of reworking the "ion" function to provide a read and a write paths, the latter with constant buf argument. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf header: Fail on write_padded errorDavid Carrillo-Cisneros1-1/+5
Do not proceed if write_padded() error failed. Also, add comments to remind that the return value of write_* functions in util/header.c is an errno code and not the number of bytes written. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf header: Add PROCESS_STR_FUN macroDavid Carrillo-Cisneros1-48/+17
Simplify code by adding a macro to handle the common case of processing header features that are a simple string. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf header: Encapsulate read and swapDavid Carrillo-Cisneros1-133/+77
Most callers of readn() in perf header read either a 32 or a 64 bits number, error check it and swap it, if necessary. Create do_read_u32 and do_read_u64 to simplify these use cases. Signed-off-by: David Carrillo-Cisneros <[email protected]> Acked-by: David Ahern <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Turner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Simon Que <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf report: Enable finding kernel inline functionsJin Yao2-6/+0
Currently perf supports a mode to query inline stack. It works well for finding user space inline functions but it doesn't work for kernel ones, due to some unnecessary check. This patch removes these unnecessary checks. Now kernel inline functions can be reported. For example: perf report --inline -g func --stdio |--46.19%--do_huge_pmd_anonymous_page | do_huge_pmd_anonymous_page (inline) | __do_huge_pmd_anonymous_page (inline) | __SetPageUptodate (inline) | __set_bit (inline) The result is compared with the output of addr2line. They match. Signed-off-by: Yao Jin <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Milian Wolff <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf trace beauty: Simplify syscall return formattingArnaldo Carvalho de Melo1-128/+81
Removing syscall_fmt::err_msg and instead always formatting negative returns as errno values. With this we can remove a lot of entries that have no special handling besides the ones we can do by looking at the tracefs format files, i.e. the types for the fields (e.g. pid_t), well known names (e.g. fd). 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]>
2017-07-18perf trace beauty fcntl: Beautify the 'arg' for DUPFDArnaldo Carvalho de Melo1-0/+3
Before: 77059.513 ( 0.005 ms): bash/6649 fcntl(fd: 1</dev/pts/12>, cmd: DUPFD, arg: 10) = 10</dev/pts/12> After: 77059.513 ( 0.005 ms): bash/6649 fcntl(fd: 1</dev/pts/12>, cmd: DUPFD, arg: 10</dev/pts/12>) = 10</dev/pts/12> 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]>
2017-07-18perf trace beauty fcntl: Do not suppress 'cmd' when zero, should be DUPFDArnaldo Carvalho de Melo1-1/+2
Before: 77059.513 ( 0.005 ms): bash/6649 fcntl(fd: 1</dev/pts/12>, arg: 10) = 10</dev/pts/12> After: 77059.513 ( 0.005 ms): bash/6649 fcntl(fd: 1</dev/pts/12>, cmd: DUPFD, arg: 10) = 10</dev/pts/12> 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]>
2017-07-18perf trace: Allow syscall arg formatters to request non suppression of zerosArnaldo Carvalho de Melo1-1/+3
The 'perf trace' tool is suppressing args set to zero, with the exception of string tables (strarrays), which are kinda like enums, i.e. we have maps to go from numbers to strings. But the 'cmd' fcntl arg requires more specialized treatment, as its value will regulate if the next fcntl syscall arg, 'arg', should be ignored (not used) and also how to format the syscall return (fd, file flags, etc), so add a 'show_zero" bool to struct syscall_arg_fmt, to regulate this more explicitely. Will be used in a following patch with fcntl, here is just the mechanism. 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]>
2017-07-18perf trace: Group per syscall arg formatter info into one structArnaldo Carvalho de Melo1-123/+133
Instead of having syscall_fmt.{arg_scnprintf,arg_parm}, introduce struct syscall_arg_fmt and have these two, paving the way for more state to change the formatting algorithms. For instance, in the 'fcntl' 'cmd' case it is better not to suppress it when being zero, showing instead its name "DUPFD". We had that in an ad-hoc way just for strarrays, but with more involved cases like fcntl, that can't be done with just a strarray, we'll need a ".show_zero" arg in the 'cmd' syscall_arg_fmt. 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]>
2017-07-18perf trace beauty fcntl: Beautify F_GETLEASE and F_SETLEASE arg/returnArnaldo Carvalho de Melo1-1/+21
One more looking prettier. 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]>
2017-07-18perf trace beauty: Export strarray for use in per-object beautifiersArnaldo Carvalho de Melo2-20/+27
Like will be done with fcntl(fd, F_GETLEASE, F_RDLCK|F_WRLCK|F_UNLCK) 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]>
2017-07-18perf tests attr: Add optional termJiri Olsa5-3/+23
Some of the stat events are quite rare to find on common machines (like front end cycles). Adding an 'optional' term to mark such events in attr tests. Event marked as optional will not fail the test case if it's not found in results. Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Richter <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf tests attr: Fix stat sample_type setupJiri Olsa1-1/+1
>From following commit: commit 4979d0c7d0c7 ("perf stat record: Add record command") we started to assign PERF_SAMPLE_IDENTIFIER to sample_type. Fixing the attr stat tests accordingly. Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Richter <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-18perf tests attr: Fix precise_ip setupJiri Olsa1-1/+1
We have a test to detect to highest precise possible, so test can't just predict precise_ip value. Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Richter <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Powered by cgit, Gruvboxed by Blaster4385.