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Just like all the other meta events, that extra _event suffix is just
redundant, ditch it.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Song Liu <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Even more, to have a "perf_record_" prefix, so that they match the
PERF_RECORD_ enum they map to.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Move the PERF_RECORD_SAMPLE event definition to libperf's event.h header
include.
In order to keep libperf simple, we switch 'u64/u32/u16/u8' types used
events to their generic '__u*' versions.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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Move the PERF_RECORD_BPF_EVENT event definition to libperf's event.h.
In order to keep libperf simple, we switch 'u64/u32/u16/u8'
types used events to their generic '__u*' versions.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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Move the PERF_RECORD_KSYMBOL event definition into libperf's event.h
header include.
In order to keep libperf simple, we switch 'u64/u32/u16/u8' types used
events to their generic '__u*' versions.
Perf added 'u*' types mainly to ease up printing __u64 values
as stated in the linux/types.h comment:
/*
* We define u64 as uint64_t for every architecture
* so that we can print it with "%"PRIx64 without getting warnings.
*
* typedef __u64 u64;
* typedef __s64 s64;
*/
Add and use new PRI_lu64 and PRI_lx64 macros for that. Use extra '_' to
ease up the reading and differentiate them from standard PRI*64 macros.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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Move the PERF_RECORD_THROTTLE event definition into libperf's event.h
header include.
In order to keep libperf simple, we switch 'u64/u32/u16/u8' types used
events to their generic '__u*' versions.
Perf added 'u*' types mainly to ease up printing __u64 values as stated
in the linux/types.h comment:
/*
* We define u64 as uint64_t for every architecture
* so that we can print it with "%"PRIx64 without getting warnings.
*
* typedef __u64 u64;
* typedef __s64 s64;
*/
Add and use new PRI_lu64 and PRI_lx64 macros for that. Use extra '_' to
ease up the reading and differentiate them from standard PRI*64 macros.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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Move the PERF_RECORD_READ event definition to libperf's event.h header
include.
In order to keep libperf simple, we switch 'u64/u32/u16/u8' types used
events to their generic '__u*' versions.
Perf added 'u*' types mainly to ease up printing __u64 values
as stated in the linux/types.h comment:
/*
* We define u64 as uint64_t for every architecture
* so that we can print it with "%"PRIx64 without getting warnings.
*
* typedef __u64 u64;
* typedef __s64 s64;
*/
Add and use new PRI_lu64 and PRI_lx64 macros for that. Use extra '_' to
ease up the reading and differentiate them from standard PRI*64 macros.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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perf/event.h
Move the PERF_RECORD_LOST_SAMPLES event definition into libperf's
event.h header include.
In order to keep libperf simple, we switch 'u64/u32/u16/u8' types used
events to their generic '__u*' versions.
Perf added 'u*' types mainly to ease up printing __u64 values
as stated in the linux/types.h comment:
/*
* We define u64 as uint64_t for every architecture
* so that we can print it with "%"PRIx64 without getting warnings.
*
* typedef __u64 u64;
* typedef __s64 s64;
*/
Add and use new PRI_lu64 and PRI_lx64 macros for that. Use extra '_' to
ease up the reading and differentiate them from standard PRI*64 macros.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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Move the lost_event event definition to libperf's event.h header
include.
In order to keep libperf simple, we switch 'u64/u32/u16/u8' types used
events to their generic '__u*' versions.
Perf added 'u*' types mainly to ease up printing __u64 values as stated
in the linux/types.h comment:
/*
* We define u64 as uint64_t for every architecture
* so that we can print it with "%"PRIx64 without getting warnings.
*
* typedef __u64 u64;
* typedef __s64 s64;
*/
Add and use new PRI_lu64 and PRI_lx64 macros for that. Use extra '_' to
ease up the reading and differentiate them from standard PRI*64 macros.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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Move the fork_event event definition into libperf's event.h header
include.
In order to keep libperf simple, we switch 'u64/u32/u16/u8' types used
events to their generic '__u*' versions.
Perf added 'u*' types mainly to ease up printing __u64 values
as stated in the linux/types.h comment:
/*
* We define u64 as uint64_t for every architecture
* so that we can print it with "%"PRIx64 without getting warnings.
*
* typedef __u64 u64;
* typedef __s64 s64;
*/
Add and use new PRI_lu64 and PRI_lx64 macros for that. Using extra '_'
to ease up the reading and differentiate them from standard PRI*64
macros.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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Move the namespaces_event event definition into libperf's event.h header
include.
In order to keep libperf simple, we switch 'u64/u32/u16/u8' types used
events to their generic '__u*' versions.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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Moving comm_event event definition into libperf's event.h
header include.
In order to keep libperf simple, we switch 'u64/u32/u16/u8'
types used events to their generic '__u*' versions.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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Moving mmap2_event event definition into libperf's event.h header
include.
In order to keep libperf simple, we switch 'u64/u32/u16/u8' types used
events to their generic '__u*' versions.
Perf added 'u*' types mainly to ease up printing __u64 values
as stated in the linux/types.h comment:
/*
* We define u64 as uint64_t for every architecture
* so that we can print it with "%"PRIx64 without getting warnings.
*
* typedef __u64 u64;
* typedef __s64 s64;
*/
Adding and using new PRI_lu64 and PRI_lx64 macros to be used for
that. Using extra '_' to ease up the reading and differentiate
them from standard PRI*64 macros.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Move the mmap_event event definition to libperf's event.h header
include.
In order to keep libperf simple, we switch 'u64/u32/u16/u8' types used
events to their generic '__u*' versions.
Perf added 'u*' types mainly to ease up printing __u64 values as stated
in the linux/types.h comment:
/*
* We define u64 as uint64_t for every architecture
* so that we can print it with "%"PRIx64 without getting warnings.
*
* typedef __u64 u64;
* typedef __s64 s64;
*/
Add and use new PRI_lu64 and PRI_lx64 macros for that. Use extra '_'
to ease up reading and differentiate them from standard PRI*64 macros.
Committer notes:
Fixup the PRI_l[ux]64 macros on 32-bit arches, conditionally defining it
with that extra 'l' modifier only on arches where __u64 is long long,
leaving it aside on 32-bit arches.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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If the user specified --ns, the column to print the sort time stamp
wasn't wide enough to actually print the full nanoseconds.
Widen the time key column width when --ns is specified.
Before:
% perf record -a sleep 1
% perf report --sort time,overhead,symbol --stdio --ns
...
2.39% 187851.10000 [k] smp_call_function_single - -
1.53% 187851.10000 [k] intel_idle - -
0.59% 187851.10000 [.] __wcscmp_ifunc - -
0.33% 187851.10000 [.] 0000000000000000 - -
0.28% 187851.10000 [k] cpuidle_enter_state - -
After:
% perf report --sort time,overhead,symbol --stdio --ns
...
2.39% 187851.100000000 [k] smp_call_function_single - -
1.53% 187851.100000000 [k] intel_idle - -
0.59% 187851.100000000 [.] __wcscmp_ifunc - -
0.33% 187851.100000000 [.] 0000000000000000 - -
0.28% 187851.100000000 [k] cpuidle_enter_state - -
Signed-off-by: Andi Kleen <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Use timestamp__scnprintf_nsec() to print nanoseconds for the time sort
key, instead of open coding.
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]>
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Removed headers which are included twice.
Signed-off-by: Souptick Joarder <[email protected]>
Reviewed-by: Mukesh Ojha <[email protected]>
Cc: Andrew Morton <[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]>
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Reducing the includes hell a bit more, speeding up the build and
avoiding needless rebuilds when just one of those files gets updated.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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When srcline was introduced it wrongly added the include to util/sort.h,
even with that header not needing the definitions it provides, fix it by
adding it to the places that need it as a pre patch to remove srcline.h
from sort.h.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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To disentangle util/sort.h a bit more.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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And into a separate util/record.h, to better isolate things and make
sure that those who use record_opts and the other moved declarations
are explicitly including the necessary header.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Just a forward declaration for 'struct timespec' is needed, ditch the
rest.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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From a quick look this was never needed and just polluted the build,
needlessly making things including cpumap.h to be rebuild if perf.h or
anything it includes gets changed.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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So it's part of libperf library as basic functions operating on
perf_thread_map objects.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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The util/cpumap.h file doesn't use anything in refcount.h not in
debug.h, it needs just a forward reference to 'struct cpu_map_data',
that is defined in util/event.h and cpumap.h was getting indirectly via,
of all things, debug.h
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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We don't need what is in perf's util/cpumap.h, just the struct cpu_map
that is in libperf's internal/cpumap.h file to cover this one case:
tools/perf/util/evsel.h:215:27: error: dereferencing pointer to incomplete type ‘struct perf_cpu_map’
215 | return evsel__cpus(evsel)->nr;
So switch to libperf's cpumap.h and add some missing struct foward
declarations and include sys/types.h to get pid_t.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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And it was getting it by luck from util/cpumap.h that shouldn't be
included in util/evsel.h as it only needs what is in libperf, i.e.
struct cpu_map, that is in internal/cpumap.h, so add stdio.h before
we fix that.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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We added it in 07ac002f2fcc ("perf evsel: Introduce is_group_member
method") but we already ditched that function, and there was nothing
else left that needed NULL nor anything else from stddef.h, ditch it.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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We need only a struct forward declaration, so prune the header
dependency tree a bit more.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Since util/evsel.h uses perf_evsel__cpus() that has its prototype in
libperf's perf/evsel.h file, we need it explicitely included.
This was working by luck as util/evsel.h includes counts.h, but that is
not necessary, just some forward declarations, so, before we remove
counts.h from util/evsel.h, add what is realli needed.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It is getting this via evsel.h, that don't strictly need counts.h, just
forward declarations for some structs, so add it here before we remove
it from there.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It is getting this via evsel.h, that don't strictly need counts.h, just
forward declarations for some structs, so add it here before we remove
it from there.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It gets it very indirectly, via evsel.h -> counts.h, and since counts.h
doesn't need xyarray.h at all, add it here before we remove it there.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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This was being obtained indirectly via evsel.h -> counts.h, since we
don't need xyarray in counts.h, we need to add it here explicitely
before removing it from counts.h.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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We get these by sheer luck, since we're cleaning unneeded headers use,
this needs to be done first to avoid breakage down the line.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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All we need in util/evsel.h is the foward declaration of 'struct
xyarray', not the internal/xyarray.h, that can be moved to util/evsel.c
and then we reduce the header dependency tree.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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There we need just some struct forward declarations, do that instead and
add the includes needed by metricgroup.c.
That should help with needless rebuilds when changing the removed
headers from metricgroup.h.
Cc: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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As an internal function that will be used by both perf and libperf, but
is not exported at this point.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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So it's part of the libperf library as one of basic functions operating
on the perf_cpu_map class.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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Switch the rest of the perf code to use libperf's perf_cpu_map__nr(),
which is the same as current cpu_map__nr() and remove the cpu_map__nr()
function.
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[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]>
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The synthetic branch and instruction samples are missed to set
instruction related info, thus the perf tool fails to display samples
with flags '-F,+insn,+insnlen'.
The CoreSight trace decoder provides sufficient information to decide
the instruction size based on the ISA type: A64/A32 instructions are
32-bit size, but one exception is the T32 instruction size, which might
be 32-bit or 16-bit.
This patch handles these cases and it reads the instruction values from
DSO file; thus can support the flags '-F,+insn,+insnlen'.
Before:
# perf script -F,insn,insnlen,ip,sym
0 [unknown] ilen: 0
ffff97174044 _start ilen: 0
ffff97174938 _dl_start ilen: 0
ffff97174938 _dl_start ilen: 0
ffff97174938 _dl_start ilen: 0
ffff97174938 _dl_start ilen: 0
ffff97174938 _dl_start ilen: 0
ffff97174938 _dl_start ilen: 0
ffff97174938 _dl_start ilen: 0
ffff97174938 _dl_start ilen: 0
[...]
After:
# perf script -F,insn,insnlen,ip,sym
0 [unknown] ilen: 0
ffff97174044 _start ilen: 4 insn: 2f 02 00 94
ffff97174938 _dl_start ilen: 4 insn: c1 ff ff 54
ffff97174938 _dl_start ilen: 4 insn: c1 ff ff 54
ffff97174938 _dl_start ilen: 4 insn: c1 ff ff 54
ffff97174938 _dl_start ilen: 4 insn: c1 ff ff 54
ffff97174938 _dl_start ilen: 4 insn: c1 ff ff 54
ffff97174938 _dl_start ilen: 4 insn: c1 ff ff 54
ffff97174938 _dl_start ilen: 4 insn: c1 ff ff 54
ffff97174938 _dl_start ilen: 4 insn: c1 ff ff 54
[...]
Signed-off-by: Leo Yan <[email protected]>
Reviewed-by: Mathieu Poirier <[email protected]>
Tested-by: Mathieu Poirier <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Robert Walker <[email protected]>
Cc: Suzuki Poulouse <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Make perf report -D command print captured LBR callstack chain when it is
collected together with raw thread stack data:
2752673087247083 0x5d10 [0x548]: PERF_RECORD_SAMPLE(IP, 0x4002): 5841/5841: 0x40121f period: 1543862 addr: 0
... FP chain: nr:0
... branch callstack: nr:3
..... 0: 00000000004011d0
..... 1: 00007f393c388411
..... 2: 0000000000401098
... user regs: mask 0xff0fff ABI 64-bit
.... AX 0x34e7
.... BX 0x7fff5f6dd3c0
.... CX 0xffffffff
.... DX 0x34e6
.... SI 0x7f393c5268d0
.... DI 0x0
.... BP 0x401260
.... SP 0x7fff5f6dd3c0
.... IP 0x40121f
.... FLAGS 0x29f
.... CS 0x33
.... SS 0x2b
.... R8 0x7f393c526800
.... R9 0x7f393c525da0
.... R10 0xfffffffffffff70a
.... R11 0x246
.... R12 0x401070
.... R13 0x7fff5f6ddcb0
.... R14 0x0
.... R15 0x0
... ustack: size 1024, offset 0x130
. data_src: 0x5080021
... thread: stack_test:5841
...... dso: /root/abudanko/stacks/stack_test
Committer testing:
# perf record -g --call-graph dwarf,1024 -j stack,u ls > /dev/null
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.042 MB perf.data (10 samples) ]
#
Before:
# perf report -D |& grep PERF_RECORD_SAMPLE -A28 | tail -29
67538909824483 0xa7a0 [0x560]: PERF_RECORD_SAMPLE(IP, 0x4002): 9721/9721: 0x7f441b2b1e20 period: 1376095 addr: 0
... FP chain: nr:0
... user regs: mask 0xff0fff ABI 64-bit
.... AX 0x7f441b2b1000
.... BX 0x7f441b55b970
.... CX 0x7fff6e2db218
.... DX 0x7fff6e2db218
.... SI 0x7fff6e2db208
.... DI 0x1
.... BP 0x1
.... SP 0x7fff6e2db178
.... IP 0x7f441b2b1e20
.... FLAGS 0x20a
.... CS 0x33
.... SS 0x2b
.... R8 0x1
.... R9 0x7f441b371c18
.... R10 0x7f441b5a5f10
.... R11 0x202
.... R12 0x7fff6e2db208
.... R13 0x7fff6e2db218
.... R14 0x7f441b5a7150
.... R15 0x0
... ustack: size 1024, offset 0x148
. data_src: 0x5080021
... thread: ls:9721
...... dso: /usr/lib64/libpthread-2.29.so
0xad00 [0x60]: event: 10
#
After:
# perf report -D |& grep PERF_RECORD_SAMPLE -A31 | tail -32
67538909824483 0xa7a0 [0x560]: PERF_RECORD_SAMPLE(IP, 0x4002): 9721/9721: 0x7f441b2b1e20 period: 1376095 addr: 0
... FP chain: nr:0
... branch callstack: nr:4
..... 0: 00007f441b2b1e20
..... 1: 00007f441b58af1a
..... 2: 00007f441b58b0e1
..... 3: 00007f441b57c145
... user regs: mask 0xff0fff ABI 64-bit
.... AX 0x7f441b2b1000
.... BX 0x7f441b55b970
.... CX 0x7fff6e2db218
.... DX 0x7fff6e2db218
.... SI 0x7fff6e2db208
.... DI 0x1
.... BP 0x1
.... SP 0x7fff6e2db178
.... IP 0x7f441b2b1e20
.... FLAGS 0x20a
.... CS 0x33
.... SS 0x2b
.... R8 0x1
.... R9 0x7f441b371c18
.... R10 0x7f441b5a5f10
.... R11 0x202
.... R12 0x7fff6e2db208
.... R13 0x7fff6e2db218
.... R14 0x7f441b5a7150
.... R15 0x0
... ustack: size 1024, offset 0x148
. data_src: 0x5080021
... thread: ls:9721
...... dso: /usr/lib64/libpthread-2.29.so
#
Signed-off-by: Alexey Budankov <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[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]>
|
|
Enable '-j stack' applicability together with '--call-graph dwarf'
option so thread stack data and LBR call stack could be captured
jointly:
$ perf record -g --call-graph dwarf,1024 -j stack,u -- stack_test
Collected LBR call stack can be used to augment DWARF call stack
calculated from the raw thread stack data and to provide more
comprehensive call stack information for cases when collected SIZE is
not enough to cover complete thread stack.
Such cases are typical for workloads that allocate large arrays of data
on its threads stacks or the possible SIZE to collect can't be large
enough due to workload nature or system configuration and this is where
hardware captured LBR call stacks can provide missing stack frames.
Possible DWARF plus LBR call stacks consolidation algorithm description
follows.
With this patch set perf report command UI currently ignores collected
LBR call stack data and still provides DWARF based call stacks
information.
===========================================================================
Overview:
Legend:
THS - thread stack
CTX - thread register context
SWS - software stack
SSF - skipped stack frames
PSS - Perf sample stack
ip,sp,bp - HW registers values
d - allocated stack regions
kip - ip address in the kernel space
K - captured thread stack size
THS
-----
| |<-stack bottom
...
|---|
|ip4|
|---| PSS = SWS(THS(K))
| |
--> | |
| |d3 | user/
| |---| user PSS kernel PSS
| |ip3| ------ ------
| |---| |SSF | |SSF |
| | | .... ....
| | | ------ ------
| |d2 | | -1 | | -1 |
|---| user ------ ------
K |ip2| CTX |ip3 | |ip3 |
|---| |----| |----|
| |d1 | ... |ip2 | , |ip2 |
| |---| |---| |----| |----|
| |ip1| |bp0| |ip1 | |ip1 |
| |---| |---| |----| |----|
| | | |ip0|->|ip0 | |ip0 |<-user stack top
| | | |---| ------ ------
| | |<-|sp0|<-stack |kip0|<-kernel stack bottom
--> ----- ----- top |----|
|kip1|
|----|
|kip2|
|----|
....
| |<-kernel stack top
------
Algorithm details:
Legend:
HWS - hardware stack
K-SWS - kernel software stack
BRANCH
TABLE
HWS ip ip
from to
------ -----------
|ip7`| |ip7`| |
|----| |----|----|
|ip6`| |ip6`| |
user PSS |----| |----|----|
|ip5`| |ip5`| |
------ |----| |----|----|
| -1 | |ip4`| |ip4`| |
------ |----| |----|----|
|ip3 |~~~|ip3`| |ip3`| |
|----| |----| |----|----|
|ip2 |~~~|ip2`| |ip2`| |
|----| |----| |----|----|
|ip1 |~~~|ip1`| |ip1`|ip0`|
|----| |----| -----------
|ip0 |~~~|ip0`|<---------'
------ ------
1. if (sym(ipj) == sym(ipj`)), j=0-3 ===> user PSS
2. ipj` , j=4-7 ===> user PSS
Augmented PSS = A_SWS(SWS(THS(K)), HWS):
user/
user PSS kernel PSS
------ ------
|ip7`| |ip7`|<-user PSS bottom
|----| |----|
|ip6`| |ip6`|
|----| |----|
HWS |ip5`| |ip5`|
|----| |----|
|ip4`| |ip4`|
------ ------
|ip3 | |ip3 |
|----| |----|
SWS |ip2 | |ip2 |
|----| |----|
|ip1 | |ip1 |
|----| |----|
|ip0 | |ip0 |<-user PSS top
------ ------
|kip0|<-kernel PSS bottom
|----|
|kip1|
K-SWS |----|
|kip2|
|----|
|kip3|<-kernel PSS top
------
APSS
Committer testing:
Before:
# perf record -g --call-graph dwarf,1024 -j stack,u ls > /dev/null
unknown branch filter stack, check man page
Usage: perf record [<options>] [<command>]
or: perf record [<options>] -- <command> [<options>]
-j, --branch-filter <branch filter mask>
branch stack filter modes
# perf record -g --call-graph dwarf,1024 -j u ls > /dev/null
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.054 MB perf.data (12 samples) ]
# perf evlist -v
cycles: size: 112, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|CALLCHAIN|PERIOD|BRANCH_STACK|REGS_USER|STACK_USER|DATA_SRC, read_format: ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, enable_on_exec: 1, task: 1, precise_ip: 3, mmap_data: 1, sample_id_all: 1, exclude_guest: 1, exclude_callchain_user: 1, mmap2: 1, comm_exec: 1, ksymbol: 1, bpf_event: 1, branch_sample_type: ANY, sample_regs_user: 0xff0fff, sample_stack_user: 1024
#
After:
# perf record -g --call-graph dwarf,1024 -j stack,u ls > /dev/null
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.044 MB perf.data (11 samples) ]
[root@quaco ~]# perf evlist -v
cycles: size: 112, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|CALLCHAIN|PERIOD|BRANCH_STACK|REGS_USER|STACK_USER|DATA_SRC, read_format: ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, enable_on_exec: 1, task: 1, precise_ip: 3, mmap_data: 1, sample_id_all: 1, exclude_guest: 1, exclude_callchain_user: 1, mmap2: 1, comm_exec: 1, ksymbol: 1, bpf_event: 1, branch_sample_type: USER|CALL_STACK, sample_regs_user: 0xff0fff, sample_stack_user: 1024
#
Signed-off-by: Alexey Budankov <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[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]>
|
|
The 'idx' member was added as preparation for AUX area sampling. Add a
comment to describe why.
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Michael Petlan <[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]>
|
|
If dwarf_callchain_users is false, then unwind__prepare_access() will
not set unwind_libunwind_ops so the remaining test here is sufficient.
Signed-off-by: John Keeping <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Konstantin Khlebnikov <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: john keeping <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Commit e5adfc3e7e77 ("perf map: Synthesize maps only for thread group
leader") changed the recording side so that we no longer get mmap events
for threads other than the thread group leader (when synthesising these
events for threads which exist before perf is started).
When a file recorded after this change is loaded, the lack of mmap
records mean that unwinding is not set up for any other threads.
This can be seen in a simple record/report scenario:
perf record --call-graph=dwarf -t $TID
perf report
If $TID is a process ID then the report will show call graphs, but if
$TID is a secondary thread the output is as if --call-graph=none was
specified.
Following the rationale in that commit, move the libunwind fields into
struct map_groups and update the libunwind functions to take this
instead of the struct thread. This is only required for
unwind__finish_access which must now be called from map_groups__delete
and the others are changed for symmetry.
Note that unwind__get_entries keeps the thread argument since it is
required for symbol lookup and the libdw unwind provider uses the thread
ID.
Signed-off-by: John Keeping <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Konstantin Khlebnikov <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Fixes: e5adfc3e7e77 ("perf map: Synthesize maps only for thread group leader")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
In the next commit we will add new fields to map_groups and we need
these to be null if no value is assigned. The simplest way to achieve
this is to request zeroed memory from the allocator.
Signed-off-by: John Keeping <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Konstantin Khlebnikov <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: john keeping <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Just like 'perf trace' and 'perf script', should be useful for instance
to only consider samples after the initialization phase of some
workload.
The man page has some examples and considerations about its current
interface, that still doesn't handle the on/off events in a special way,
behaving just like when multiple events are specified, i.e.:
- In non-group mode (when the event list is not enclosed in {}) show a
a menu to allow choosing which event the user wants to see in the
histograms browser
- In group mode, be it using {} or asking for --group, show one column
per event.
Try for instance:
# perf top -e '{cycles,instructions,probe:icmp_rcv}' --switch-on=probe:icmp_rcv
Replace probe:icmp_rcv, that I put in place using:
# perf probe icmp_rcv:59
To hit when broadcast packets arrive, with a probe installed after an
initialization phase is over or after some other point of interest, some
garbage collection, etc, and also use --switch-off, for instance, on a
probe installed after said garbage collection is over.
Cc: Adrian Hunter <[email protected]>
Cc: Florian Weimer <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: William Cohen <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
If the user specifies a on or off switch event and it isn't in the
perf.data file, provide a hint about how to see the events in the
perf.data evlist:
# perf script --switch-on=syscall:sys_enter_nanosleep --switch-off=syscalls:sys_exit_nanosleep
ERROR: event_on event not found (syscall:sys_enter_nanosleep)
HINT: use 'perf evlist' to see the available event names
#
# perf evlist
sched:sched_kthread_stop
sched:sched_kthread_stop_ret
sched:sched_waking
sched:sched_wakeup
sched:sched_wakeup_new
sched:sched_switch
sched:sched_migrate_task
sched:sched_process_free
sched:sched_process_exit
sched:sched_wait_task
sched:sched_process_wait
sched:sched_process_fork
sched:sched_process_exec
sched:sched_stat_wait
sched:sched_stat_sleep
sched:sched_stat_iowait
sched:sched_stat_blocked
sched:sched_stat_runtime
sched:sched_pi_setprio
sched:sched_move_numa
sched:sched_stick_numa
sched:sched_swap_numa
sched:sched_wake_idle_without_ipi
syscalls:sys_enter_clock_nanosleep
syscalls:sys_exit_clock_nanosleep
syscalls:sys_enter_nanosleep
syscalls:sys_exit_nanosleep
# Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events
#
# perf script --switch-on=syscalls:sys_enter_nanosleep --switch-off=syscalls:sys_exit_nanosleep
sleep 20919 [001] 109866.144411: sched:sched_stat_runtime: comm=sleep pid=20919 runtime=521249 [ns] vruntime=202919398131 [ns]
sleep 20919 [001] 109866.144412: sched:sched_switch: sleep:20919 [120] S ==> swapper/1:0 [120]
swapper 0 [001] 109867.144568: sched:sched_waking: comm=sleep pid=20919 prio=120 target_cpu=001
swapper 0 [001] 109867.144586: sched:sched_wakeup: sleep:20919 [120] success=1 CPU:001
#
Cc: Adrian Hunter <[email protected]>
Cc: Florian Weimer <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: William Cohen <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Allows adding hints there, will be done in followup patch.
Cc: Adrian Hunter <[email protected]>
Cc: Florian Weimer <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: William Cohen <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|