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c658045197
linux_dsm_epyc7002/tools/perf/util
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Jiri Olsa c658045197 perf tools: Cache dso data file descriptor 
Caching dso data file descriptors to avoid expensive re-opens
especially during DWARF unwind.

We keep dsos data file descriptors open until their count reaches
the half of the current fd open limit (RLIMIT_NOFILE). In this case
we close file descriptor of the first opened dso object.

We've got overall speedup (~27% for my workload) of report:
 'perf report --stdio -i perf-test.data' (3 runs)
  (perf-test.data size was around 12GB)

  current code:
   545,640,944,228      cycles                     ( +-  0.53% )
   785,255,798,320      instructions               ( +-  0.03% )

     366.340910010 seconds time elapsed            ( +-  3.65% )

  after change:
   435,895,036,114      cycles                     ( +-  0.26% )
   636,790,271,176      instructions               ( +-  0.04% )

     266.481463387 seconds time elapsed            ( +-  0.13% )

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1401892622-30848-7-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
2014-06-12 16:53:20 +02:00
..
include tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
scripting-engines perf script/python: Print array argument as string 2014-06-09 12:21:03 +02:00
abspath.c perf tools: Remove some unused functions 2010-05-18 23:03:35 -03:00
alias.c perf tools: Introduce zfree 2013-12-27 15:17:00 -03:00
annotate.c perf annotate: Print the evsel name in the stdio output 2014-03-18 18:17:03 -03:00
annotate.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
bitmap.c perf tools: Add bitmap_or function into bitmap object 2012-02-13 23:28:10 -02:00
build-id.c perf tools: Use tid for finding thread 2014-05-12 11:09:50 +02:00
build-id.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
cache.h tools/perf: Turn strlcpy() into a __weak function 2013-10-09 08:48:49 +02:00
callchain.c perf tools: Update cpumode for each cumulative entry 2014-06-01 14:34:58 +02:00
callchain.h perf callchain: Add callchain_cursor_snapshot() 2014-06-01 14:34:59 +02:00
cgroup.c perf evlist: Introduce evlist__for_each() & friends 2014-01-13 10:06:25 -03:00
cgroup.h perf tool: Add cgroup support 2011-02-16 13:30:48 +01:00
color.c perf diff: Color the Ratio column 2014-01-13 11:37:17 -03:00
color.h perf diff: Color the Ratio column 2014-01-13 11:37:17 -03:00
comm.c perf tools: Do proper comm override error handling 2014-01-16 16:44:39 -03:00
comm.h perf tools: Do proper comm override error handling 2014-01-16 16:44:39 -03:00
config.c perf tools: Add hist.percentage config option 2014-04-16 17:16:04 +02:00
cpumap.c perf tools: Use cpu/possible instead of cpu/kernel_max 2014-04-22 17:39:16 +02:00
cpumap.h perf tools: Allow ability to map cpus to nodes easily 2014-04-22 17:39:12 +02:00
ctype.c perf tools: ctype.c only wants util.h 2012-02-13 23:17:40 -02:00
data.c perf tools: Improve error reporting 2014-04-20 00:15:12 +02:00
data.h perf tools: Add perf_data_file__write interface 2013-12-02 09:22:46 -03:00
debug.c perf tools: Get rid of a duplicate va_end() in error reporting routine 2013-12-19 11:38:42 -03:00
debug.h perf tools: Overload pr_stat traceevent print function 2013-12-04 15:23:55 -03:00
dso.c perf tools: Cache dso data file descriptor 2014-06-12 16:53:20 +02:00
dso.h perf tools: Add global list of opened dso objects 2014-06-12 16:53:20 +02:00
dwarf-aux.c perf probe: Fix perf probe to find correct variable DIE 2014-06-04 14:49:20 +02:00
dwarf-aux.h perf probe: Fix to find line information for probe list 2013-10-04 15:16:05 -03:00
environment.c
event.c Revert "perf: Disable PERF_RECORD_MMAP2 support" 2014-06-09 13:34:46 +02:00
event.h perf tools: Cache register accesses for unwind processing 2014-06-12 16:53:19 +02:00
evlist.c perf stat: Fix memory corruption of xyarray when cpumask is used 2014-01-20 16:19:09 -03:00
evlist.h perf evlist: Introduce evlist__for_each() & friends 2014-01-13 10:06:25 -03:00
evsel.c perf record: Fix to honor user freq/interval properly 2014-06-12 16:53:18 +02:00
evsel.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
exec_cmd.c perf tools: Makefile: Remove various and sundry cruft 2011-02-18 07:43:06 -02:00
exec_cmd.h perf tools: Remove some unused functions 2010-05-18 23:03:35 -03:00
generate-cmdlist.sh tools/perf: Standardize feature support define names to: HAVE_{FEATURE}_SUPPORT 2013-10-09 08:48:28 +02:00
header.c perf tools: Ensure sscanf does not overrun the "mem" field 2014-01-20 16:19:08 -03:00
header.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
help.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
help.h
hist.c perf tools: Add dcacheline sort 2014-06-09 13:34:49 +02:00
hist.h perf tools: Add dcacheline sort 2014-06-09 13:34:49 +02:00
hweight.c perf tools: Don't use code surrounded by __KERNEL__ 2010-05-02 12:00:44 -03:00
intlist.c perf util: Add findnew method to intlist 2013-10-14 10:28:48 -03:00
intlist.h perf util: Add findnew method to intlist 2013-10-14 10:28:48 -03:00
levenshtein.c
levenshtein.h
machine.c perf tools: Update mmap2 interface with protection and flag bits 2014-06-09 13:34:45 +02:00
machine.h perf machine: Factor machine__find_thread to take tid argument 2014-03-14 18:08:42 -03:00
map.c perf tools: Update mmap2 interface with protection and flag bits 2014-06-09 13:34:45 +02:00
map.h perf tools: Update mmap2 interface with protection and flag bits 2014-06-09 13:34:45 +02:00
pager.c perf tools: Add cat as fallback pager 2014-05-21 11:48:33 +02:00
parse-events.c perf list: Fix checking for supported events on older kernels 2014-02-10 11:34:31 -03:00
parse-events.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
parse-events.l perf tools: Move start conditions to start of the flex file 2013-10-11 12:17:31 -03:00
parse-events.y tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
parse-options.c perf kvm: introduce --list-cmds for use by scripts 2014-03-14 18:08:41 -03:00
parse-options.h perf kvm: introduce --list-cmds for use by scripts 2014-03-14 18:08:41 -03:00
path.c tools/perf: Turn strlcpy() into a __weak function 2013-10-09 08:48:49 +02:00
perf_regs.c perf tools: Cache register accesses for unwind processing 2014-06-12 16:53:19 +02:00
perf_regs.h perf tools: Cache register accesses for unwind processing 2014-06-12 16:53:19 +02:00
PERF-VERSION-GEN perf tools: Fix version when building out of tree 2013-11-07 10:40:47 -03:00
pmu.c perf tools: Fix pmu object compilation error 2014-04-22 17:39:09 +02:00
pmu.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
pmu.l perf tools: Add perf pmu object to access pmu format definition 2012-03-16 14:29:35 -03:00
pmu.y perf tools: Fix build with bison 2.3 and older. 2013-02-14 16:12:34 -03:00
probe-event.c perf probe: Improve error messages in --line option 2014-06-10 10:02:06 -03:00
probe-event.h perf probe: Replace line_list with intlist 2014-02-18 09:34:50 -03:00
probe-finder.c perf probe: Improve an error message of perf probe --vars mode 2014-06-09 14:35:58 -03:00
probe-finder.h perf probe: Support distro-style debuginfo for uprobe 2014-02-18 09:38:44 -03:00
pstack.c perf tools: Stop using 'self' in pstack 2012-11-14 16:50:38 -03:00
pstack.h perf tools: Finish the removal of 'self' arguments 2013-11-05 15:32:36 -03:00
python-ext-sources perf tools: Move fs.* to lib/api/fs/ 2014-02-18 09:34:49 -03:00
python.c perf evlist: Introduce evlist__for_each() & friends 2014-01-13 10:06:25 -03:00
quote.c perf tools: Remove some unused functions 2010-05-18 23:03:35 -03:00
quote.h perf tools: Remove some unused functions 2010-05-18 23:03:35 -03:00
rblist.c perf util: Add findnew method to intlist 2013-10-14 10:28:48 -03:00
rblist.h perf util: Add findnew method to intlist 2013-10-14 10:28:48 -03:00
record.c perf tools: Move fs.* to lib/api/fs/ 2014-02-18 09:34:49 -03:00
run-command.c perf tools: Remove some unused functions 2010-05-18 23:03:35 -03:00
run-command.h perf tools: Remove some unused functions 2010-05-18 23:03:35 -03:00
session.c perf session: Fix possible null pointer dereference in session.c 2014-05-16 09:18:51 +02:00
session.h perf symbols: Add 'machine' member to struct addr_location 2013-12-19 17:38:27 -03:00
setup.py tools/: Convert to new topic libraries 2013-12-16 16:03:27 -03:00
sigchain.c perf tools: Remove some unused functions 2010-05-18 23:03:35 -03:00
sigchain.h perf tools: Remove some unused functions 2010-05-18 23:03:35 -03:00
sort.c perf tools: Add dcacheline sort 2014-06-09 13:34:49 +02:00
sort.h perf tools: Add dcacheline sort 2014-06-09 13:34:49 +02:00
srcline.c perf tools: Fix build error due to zfree() cast 2014-01-15 15:10:04 -03:00
stat.c perf stats: Add max and min stats 2013-08-07 17:35:26 -03:00
stat.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
strbuf.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
strbuf.h perf tools: Remove some unused functions 2010-05-18 23:03:35 -03:00
strfilter.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
strfilter.h perf tools: Finish the removal of 'self' arguments 2013-11-05 15:32:36 -03:00
string.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
strlist.c perf tools: Fix build error due to zfree() cast 2014-01-15 15:10:04 -03:00
strlist.h perf tools: Stop using 'self' in strlist 2013-01-25 12:49:28 -03:00
svghelper.c tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
svghelper.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
symbol-elf.c perf tools: Adjust symbols in VDSO 2014-04-20 00:15:11 +02:00
symbol-minimal.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
symbol.c perf tools: Enable --children option by default 2014-06-01 14:35:08 +02:00
symbol.h perf hists: Add support for accumulated stat of hist entry 2014-06-01 14:34:56 +02:00
target.c perf record: Make per-cpu mmaps the default. 2013-11-27 14:58:36 -03:00
target.h perf target: Move the checking of which map function to call into function. 2013-12-04 13:46:37 -03:00
thread_map.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
thread_map.h perf evlist: Add thread_map__nr() helper 2013-03-15 13:06:02 -03:00
thread.c perf tools: Share map_groups among threads of the same group 2014-04-28 13:43:33 +02:00
thread.h perf tools: Share map_groups among threads of the same group 2014-04-28 13:43:33 +02:00
tool.h perf tools: Add attr->mmap2 support 2013-09-11 10:09:32 -03:00
top.c perf tools: Rename 'perf_record_opts' to 'record_opts 2013-12-19 14:43:45 -03:00
top.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
trace-event-info.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
trace-event-parse.c perf tools: Fix memory leak in event_format__print function 2014-02-18 09:34:47 -03:00
trace-event-read.c perf tools: Add trace-event object 2013-12-04 15:20:52 -03:00
trace-event-scripting.c perf symbols: Add 'machine' member to struct addr_location 2013-12-19 17:38:27 -03:00
trace-event.c tools lib traceevent: Make plugin unload function receive pevent 2014-01-15 15:10:40 -03:00
trace-event.h perf symbols: Add 'machine' member to struct addr_location 2013-12-19 17:38:27 -03:00
unwind-libdw.c tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
unwind-libdw.h perf tools: Add libdw DWARF post unwind support 2014-02-24 09:29:36 -03:00
unwind-libunwind.c perf tools: Cache dso data file descriptor 2014-06-12 16:53:20 +02:00
unwind.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
usage.c perf target: Introduce perf_target__parse_uid() 2012-05-07 16:46:48 -03:00
util.c perf tools: Add support to dynamically get cacheline size 2014-06-09 13:34:48 +02:00
util.h perf tools: Add support to dynamically get cacheline size 2014-06-09 13:34:48 +02:00
values.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
values.h tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
vdso.c perf symbols: Remove open coded management of long_name_allocated member 2013-12-10 16:51:09 -03:00
vdso.h perf tools: Back [vdso] DSO with real data 2012-09-11 12:08:30 -03:00
wrapper.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
xyarray.c perf tools: Introduce event selectors 2011-01-03 16:39:04 -02:00
xyarray.h perf tools: Introduce event selectors 2011-01-03 16:39:04 -02:00