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02bf60aad7
kernel_optimize_test/tools/perf/util
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Anton Blanchard 02bf60aad7 perf: Fix performance issue with perf report 
On a large machine we spend a lot of time in perf_header__find_attr when
running perf report.

If we are parsing a file without PERF_SAMPLE_ID then for each sample we call
perf_header__find_attr and loop through all counter IDs, never finding a match.
As the machine gets larger there are more per cpu counters and we spend an
awful lot of time in there.

The patch below initialises each sample id to -1ULL and checks for this in
perf_header__find_attr. We may need to do something more intelligent eventually
(eg a hash lookup from counter id to attr) but this at least fixes the most
common usage of perf report.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Eric B Munson <ebmunson@us.ibm.com>
Acked-by: Eric B Munson <ebmunson@us.ibm.com>
LKML-Reference: <20100504111915.GB14636@kryten>
Signed-off-by: Anton Blanchard <anton@samba.org>
--
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-05-04 10:54:09 -03:00
..
include perf tools: Don't use code surrounded by __KERNEL__ 2010-05-02 12:00:44 -03:00
scripting-engines perf/scripts: Tuple was set from long in both branches in python_process_event() 2010-04-02 21:32:16 +02:00
abspath.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
alias.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
bitmap.c perf tools: Don't use code surrounded by __KERNEL__ 2010-05-02 12:00:44 -03:00
build-id.c perf: 'perf kvm' tool for monitoring guest performance from host 2010-04-19 12:37:24 +03:00
build-id.h perf build-id: Move the routine to find DSOs with hits to the lib 2010-02-04 09:33:26 +01:00
cache.h perf newt: Properly restore the screen when error exiting 2010-03-22 18:47:34 +01:00
callchain.c perf callchains: Store the map together with the symbol 2010-03-26 08:52:57 +01:00
callchain.h perf callchains: Store the map together with the symbol 2010-03-26 08:52:57 +01:00
color.c perf hist: Replace ->print() routines by ->snprintf() equivalents 2010-04-02 16:28:15 -03:00
color.h perf hist: Replace ->print() routines by ->snprintf() equivalents 2010-04-02 16:28:15 -03:00
config.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
cpumap.c perf tools: Fix sparse CPU numbering related bugs 2010-03-11 13:36:53 +01:00
cpumap.h perf tools: Fix sparse CPU numbering related bugs 2010-03-11 13:36:53 +01:00
ctype.c perf tools: Move graph_line and graph_dotted_line from top 2009-11-23 21:55:20 +01:00
debug.c perf: Fix endianness argument compatibility with OPT_BOOLEAN() and introduce OPT_INCR() 2010-04-14 11:26:44 +02:00
debug.h perf: Fix endianness argument compatibility with OPT_BOOLEAN() and introduce OPT_INCR() 2010-04-14 11:26:44 +02:00
debugfs.c perf trace: Clean up find_debugfs() 2009-12-28 10:36:36 +01:00
debugfs.h perf tools: Mount debugfs automatically 2009-12-28 10:36:36 +01:00
environment.c
event.c perf: Fix performance issue with perf report 2010-05-04 10:54:09 -03:00
event.h perf tools: Rename "kernel_info" to "machine" 2010-04-27 21:17:50 -03:00
exec_cmd.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
exec_cmd.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
generate-cmdlist.sh
header.c perf: Fix performance issue with perf report 2010-05-04 10:54:09 -03:00
header.h perf/live: don't synthesize build ids at the end of a live mode trace 2010-05-02 12:04:05 -03:00
help.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
help.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
hist.c perf: 'perf kvm' tool for monitoring guest performance from host 2010-04-19 12:37:24 +03:00
hist.h perf: 'perf kvm' tool for monitoring guest performance from host 2010-04-19 12:37:24 +03:00
hweight.c perf tools: Don't use code surrounded by __KERNEL__ 2010-05-02 12:00:44 -03:00
levenshtein.c
levenshtein.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
map.c perf machine: Adopt some map_groups functions 2010-04-27 21:21:18 -03:00
map.h perf symbols: Add machine helper routines 2010-04-29 15:25:23 -03:00
newt.c perf TUI: Move "Yes" button to before "No" 2010-04-08 11:34:25 -03:00
pager.c perf_counter tools: Remove dead code 2009-06-27 06:06:39 +02:00
parse-events.c perf: Fix initialization bug in parse_single_tracepoint_event() 2010-04-24 03:24:09 +02:00
parse-events.h perf: record TRACE_INFO only if using tracepoints and SAMPLE_RAW 2010-05-03 10:31:48 -03:00
parse-options.c perf: Fix endianness argument compatibility with OPT_BOOLEAN() and introduce OPT_INCR() 2010-04-14 11:26:44 +02:00
parse-options.h perf: Fix endianness argument compatibility with OPT_BOOLEAN() and introduce OPT_INCR() 2010-04-14 11:26:44 +02:00
path.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
PERF-VERSION-GEN perf tools: Allow specifying O= to build files in a separate directory 2010-04-02 16:28:03 -03:00
probe-event.c perf machine: Adopt some map_groups functions 2010-04-27 21:21:18 -03:00
probe-event.h perf probe: Add --max-probes option 2010-04-26 15:35:20 -03:00
probe-finder.c perf probe: Add --max-probes option 2010-04-26 15:35:20 -03:00
probe-finder.h perf probe: Add --max-probes option 2010-04-26 15:35:20 -03:00
quote.c perf: Fix read buffer overflow 2009-08-04 11:09:56 +02:00
quote.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
run-command.c perf: Enable more compiler warnings 2009-08-16 10:47:47 +02:00
run-command.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
session.c perf: add perf-inject builtin 2010-05-02 13:36:56 -03:00
session.h perf: add perf-inject builtin 2010-05-02 13:36:56 -03:00
sigchain.c
sigchain.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
sort.c perf tools: Fix accidentally preprocessed snprintf callback 2010-04-14 16:59:21 -03:00
sort.h perf: 'perf kvm' tool for monitoring guest performance from host 2010-04-19 12:37:24 +03:00
strbuf.c perf_counter tools: Add more warnings and fix/annotate them 2009-07-01 12:49:48 +02:00
strbuf.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
string.c perf: Swap inclusion order of util.h and string.h in util/string.c 2010-04-04 16:40:42 +02:00
strlist.c perf probe: Fix --del to update current event list 2009-12-15 20:22:01 +01:00
strlist.h perf tools: Add for_each macros for strlist 2009-12-15 20:22:02 +01:00
svghelper.c perf timechart: Improve the visual appearance of scheduler delays 2009-10-20 03:39:21 +02:00
svghelper.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
symbol.c perf symbols: Add machine helper routines 2010-04-29 15:25:23 -03:00
symbol.h perf symbols: Add machine helper routines 2010-04-29 15:25:23 -03:00
thread.c perf symbols: Move more map_groups methods to map.c 2010-04-02 16:27:39 -03:00
thread.h perf: 'perf kvm' tool for monitoring guest performance from host 2010-04-19 12:37:24 +03:00
trace-event-info.c perf: record TRACE_INFO only if using tracepoints and SAMPLE_RAW 2010-05-03 10:31:48 -03:00
trace-event-parse.c perf: Fix dynamic field detection 2010-04-15 01:34:46 +02:00
trace-event-read.c perf: add perf-inject builtin 2010-05-02 13:36:56 -03:00
trace-event-scripting.c perf/scripts: Add Python scripting engine 2010-02-25 04:07:29 +01:00
trace-event.h perf: add perf-inject builtin 2010-05-02 13:36:56 -03:00
types.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
usage.c perf top: Fall back to cpu-clock-tick hrtimer sampling if no cycle counter available 2009-06-07 17:31:52 +02:00
util.c perf: Fix implicit declaration of getline in util.c 2010-01-17 07:53:09 +01:00
util.h perf tools: Move the prototypes in util/string.h to util.h 2010-04-03 10:19:26 -03:00
values.c perf: Fix memory leak: counterwidth 2010-01-13 10:09:15 +01:00
values.h perf tools: Protect header files with a consistent style 2009-09-24 21:27:51 +02:00
wrapper.c perf tools: Remove unused wrapper routines 2009-11-24 16:37:03 +01:00