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  1. 01 9月, 2019 1 次提交
  3. 30 8月, 2019 2 次提交
  5. 30 7月, 2019 2 次提交
    • J
      libperf: Move perf_event_attr field from perf's evsel to libperf's perf_evsel · 1fc632ce
      由 Jiri Olsa 提交于 
      Move the perf_event_attr struct fron 'struct evsel' to 'struct perf_evsel'.

Committer notes:

Fixed up these:

 tools/perf/arch/arm/util/auxtrace.c
 tools/perf/arch/arm/util/cs-etm.c
 tools/perf/arch/arm64/util/arm-spe.c
 tools/perf/arch/s390/util/auxtrace.c
 tools/perf/util/cs-etm.c

Also

  cc1: warnings being treated as errors
  tests/sample-parsing.c: In function 'do_test':
  tests/sample-parsing.c:162: error: missing initializer
  tests/sample-parsing.c:162: error: (near initialization for 'evsel.core.cpus')

   	struct evsel evsel = {
   		.needs_swap = false,
  -		.core.attr = {
  -			.sample_type = sample_type,
  -			.read_format = read_format,
  +		.core = {
  +			. attr = {
  +				.sample_type = sample_type,
  +				.read_format = read_format,
  +			},

  [perfbuilder@a70e4eeb5549 /]$ gcc --version |& head -1
  gcc (GCC) 4.4.7

Also we don't need to include perf_event.h in
tools/perf/lib/include/perf/evsel.h, forward declaring 'struct
perf_event_attr' is enough. And this even fixes the build in some
systems where things are used somewhere down the include path from
perf_event.h without defining __always_inline.
Signed-off-by: NJiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190721112506.12306-43-jolsa@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      1fc632ce
    • J
      perf evsel: Rename struct perf_evsel to struct evsel · 32dcd021
      由 Jiri Olsa 提交于 
      Rename struct perf_evsel to struct evsel, so we don't have a name clash
when we add struct perf_evsel in libperf.

Committer notes:

Added fixes for arm64, provided by Jiri.
Signed-off-by: NJiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190721112506.12306-5-jolsa@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      32dcd021
  7. 09 7月, 2019 1 次提交
  9. 05 6月, 2019 1 次提交
  11. 23 2月, 2019 1 次提交
    • J
      perf data: Add global path holder · 2d4f2799
      由 Jiri Olsa 提交于 
      Add a 'path' member to 'struct perf_data'. It will keep the configured
path for the data (const char *). The path in struct perf_data_file is
now dynamically allocated (duped) from it.

This scheme is useful/used in following patches where struct
perf_data::path holds the 'configure' directory path and struct
perf_data_file::path holds the allocated path for specific files.

Also it actually makes the code little simpler.
Signed-off-by: NJiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20190221094145.9151-3-jolsa@kernel.org
[ Fixup data-convert-bt.c missing conversion ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      2d4f2799
  13. 18 12月, 2018 1 次提交
  15. 27 4月, 2018 2 次提交
  17. 31 10月, 2017 2 次提交
  19. 18 9月, 2017 1 次提交
  21. 25 4月, 2017 1 次提交
  23. 20 4月, 2017 4 次提交
  25. 27 3月, 2017 1 次提交
  27. 17 3月, 2017 1 次提交
  29. 24 8月, 2016 1 次提交
  31. 20 5月, 2016 1 次提交
  33. 23 3月, 2016 1 次提交
  35. 18 12月, 2015 1 次提交
  37. 18 5月, 2015 1 次提交
    • A
      perf tools: Elliminate alignment holes · 86066064
      由 Arnaldo Carvalho de Melo 提交于 
      perf_evsel:

Before:

	/* size: 320, cachelines: 5, members: 35 */
	/* sum members: 304, holes: 3, sum holes: 16 */

After:

	/* size: 304, cachelines: 5, members: 35 */
	/* last cacheline: 48 bytes */

perf_evlist:

Before:

	/* size: 2544, cachelines: 40, members: 17 */
	/* sum members: 2533, holes: 2, sum holes: 11 */
	/* last cacheline: 48 bytes */

After:

	/* size: 2536, cachelines: 40, members: 17 */
	/* sum members: 2533, holes: 1, sum holes: 3 */
	/* last cacheline: 40 bytes */

timechart:

Before:

	/* size: 288, cachelines: 5, members: 21 */
	/* sum members: 271, holes: 2, sum holes: 10 */
	/* padding: 7 */
	/* last cacheline: 32 bytes */

After:

	/* size: 272, cachelines: 5, members: 21 */
	/* sum members: 271, holes: 1, sum holes: 1 */
	/* last cacheline: 16 bytes */

thread:

Before:

	/* size: 112, cachelines: 2, members: 15 */
	/* sum members: 101, holes: 2, sum holes: 11 */
	/* last cacheline: 48 bytes */

After:

	/* size: 104, cachelines: 2, members: 15 */
	/* sum members: 101, holes: 1, sum holes: 3 */
	/* last cacheline: 40 bytes */

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-a543w7zjl9yyrg9nkf1teukp@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      86066064
  39. 09 5月, 2015 1 次提交
    • A
      perf machine: Protect the machine->threads with a rwlock · b91fc39f
      由 Arnaldo Carvalho de Melo 提交于 
      In addition to using refcounts for the struct thread lifetime
management, we need to protect access to machine->threads from
concurrent access.

That happens in 'perf top', where a thread processes events, inserting
and deleting entries from that rb_tree while another thread decays
hist_entries, that end up dropping references and ultimately deleting
threads from the rb_tree and releasing its resources when no further
hist_entry (or other data structures, like in 'perf sched') references
it.

So the rule is the same for refcounts + protected trees in the kernel,
get the tree lock, find object, bump the refcount, drop the tree lock,
return, use object, drop the refcount if no more use of it is needed,
keep it if storing it in some other data structure, drop when releasing
that data structure.

I.e. pair "t = machine__find(new)_thread()" with a "thread__put(t)", and
"perf_event__preprocess_sample(&al)" with "addr_location__put(&al)".

The addr_location__put() one is because as we return references to
several data structures, we may end up adding more reference counting
for the other data structures and then we'll drop it at
addr_location__put() time.
Acked-by: NDavid Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-bs9rt4n0jw3hi9f3zxyy3xln@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      b91fc39f
  41. 03 4月, 2015 1 次提交
    • Y
      perf timechart: Support using -f to override perf.data file ownership · 44f7e432
      由 Yunlong Song 提交于 
      Enable perf timechart to use perf.data when it is not owned by current
user or root.

Example:

 # perf timechart record ls
 # chown Yunlong.Song:Yunlong.Song perf.data
 # ls -al perf.data
 -rw------- 1 Yunlong.Song Yunlong.Song 5471744 Apr  2 15:15 perf.data
 # id
 uid=0(root) gid=0(root) groups=0(root),64(pkcs11)

Before this patch:

 # perf timechart
 File perf.data not owned by current user or root (use -f to override)
 # perf timechart -f
   Error: unknown switch `f'

  usage: perf timechart [<options>] {record}

     -i, --input <file>    input file name
     -o, --output <file>   output file name
     -w, --width <n>       page width
         --highlight <duration or task name>
                           highlight tasks. Pass duration in ns or process name.
     -P, --power-only      output power data only
     -T, --tasks-only      output processes data only
     -p, --process <process>
                           process selector. Pass a pid or process name.
         --symfs <directory>
                           Look for files with symbols relative to this directory
     -n, --proc-num <n>    min. number of tasks to print
     -t, --topology        sort CPUs according to topology
         --io-skip-eagain  skip EAGAIN errors
         --io-min-time <time>
                           all IO faster than min-time will visually appear longer
         --io-merge-dist <time>
                           merge events that are merge-dist us apart

As shown above, the -f option does not work at all.

After this patch:

 # perf timechart
 File perf.data not owned by current user or root (use -f to override)
 # perf timechart -f
 Written 0.0 seconds of trace to output.svg.
 # cat output.svg
 <?xml version="1.0" standalone="no"?>
 <!DOCTYPE svg SYSTEM "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg width="1000" height="10110" version="1.1" xmlns="http://www.w3.org/2000/svg">
 <defs>
   <style type="text/css">
     <![CDATA[
       rect          { stroke-width: 1; }
 ...
 ...

As shown above, the -f option really works now.
Signed-off-by: NYunlong Song <yunlong.song@huawei.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1427982439-27388-9-git-send-email-yunlong.song@huawei.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      44f7e432
  43. 20 3月, 2015 1 次提交
  45. 11 3月, 2015 1 次提交
  47. 29 10月, 2014 2 次提交
  49. 26 9月, 2014 1 次提交
  51. 14 8月, 2014 2 次提交
  53. 12 8月, 2014 1 次提交
  55. 17 7月, 2014 1 次提交
  57. 10 7月, 2014 3 次提交