iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/tools/perf/util
History
Anton Blanchard 5d67be97f8 perf report/annotate/script: Add option to specify a CPU range 
Add an option to perf report/annotate/script to specify which
CPUs to operate on. This enables us to take a single system wide
profile and analyse each CPU (or group of CPUs) in isolation.

This was useful when profiling a multiprocess workload where the
bottleneck was on one CPU but this was hidden in the overall
profile. Per process and per thread breakdowns didn't help
because multiple processes were running on each CPU and no
single process consumed an entire CPU.

The patch converts the list of CPUs returned by cpu_map__new
into a bitmap for fast lookup. I wanted to use -C to be
consistent with perf top/record/stat, but unfortunately perf
report already uses -C <comms>.

 v2: Incorporate suggestions from David Ahern:
	- Added -c to perf script
	- Check that SAMPLE_CPU is set when -c is used
	- Update documentation

 v3: Create perf_session__cpu_bitmap()

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Link: http://lkml.kernel.org/r/20110704215750.11647eb9@kryten
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-05 10:44:44 +02:00
..
include
perf tools: Fix build on older systems
2011-05-26 11:16:29 -03:00
scripting-engines
perf session: Pass evsel in event_ops->sample()
2011-03-23 19:28:58 -03:00
ui
perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c
2011-05-10 10:20:07 +02:00
abspath.c
perf tools: Remove some unused functions
2010-05-18 23:03:35 -03:00
alias.c
perf_counter tools: Add more warnings and fix/annotate them
2009-07-01 12:49:48 +02:00
annotate.c
perf symbols: Rename dso->origin to dso->symtab_type
2011-03-11 13:28:45 -03:00
annotate.h
perf top: Live TUI Annotation
2011-02-22 12:02:07 -03:00
bitmap.c
perf tools: Don't use code surrounded by __KERNEL__
2010-05-02 12:00:44 -03:00
build-id.c
perf session: Pass evsel in event_ops->sample()
2011-03-23 19:28:58 -03:00
build-id.h
perf annotate: Use build-ids to find the right DSO
2010-05-20 12:15:33 -03:00
cache.h
perf tools: Don't fallback to setup_pager unconditionally
2011-01-31 18:08:39 -02:00
callchain.c
perf tools: Kill event_t typedef, use 'union perf_event' instead
2011-01-29 16:25:37 -02:00
callchain.h
perf tools: Add inverted call graph report support.
2011-06-30 00:24:30 +02:00
cgroup.c
perf: Fix a build error with some GCC versions
2011-04-08 17:40:21 +02:00
cgroup.h
perf tool: Add cgroup support
2011-02-16 13:30:48 +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 buildid: add perfconfig option to specify buildid cache dir
2010-06-05 09:34:04 -03:00
cpumap.c
perf tools: Add missing cpu_map__delete()
2011-01-22 19:56:30 -02:00
cpumap.h
perf tools: Add missing cpu_map__delete()
2011-01-22 19:56:30 -02:00
ctype.c
perf tools: Move graph_line and graph_dotted_line from top
2009-11-23 21:55:20 +01:00
debug.c
perf tools: Fixup exit path when not able to open events
2011-03-29 13:40:27 -03:00
debug.h
perf tools: Fixup exit path when not able to open events
2011-03-29 13:40:27 -03:00
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 evlist: Don't die if sample_{id_all|type} is invalid
2011-06-03 10:07:52 -03:00
event.h
perf evlist: Don't die if sample_{id_all|type} is invalid
2011-06-03 10:07:52 -03:00
evlist.c
perf evlist: Don't die if sample_{id_all|type} is invalid
2011-06-03 10:07:52 -03:00
evlist.h
perf evlist: Don't die if sample_{id_all|type} is invalid
2011-06-03 10:07:52 -03:00
evsel.c
perf evlist: Don't die if sample_{id_all|type} is invalid
2011-06-03 10:07:52 -03:00
evsel.h
perf evlist: Don't die if sample_{id_all|type} is invalid
2011-06-03 10:07:52 -03:00
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
…
header.c
perf symbols: Handle /proc/sys/kernel/kptr_restrict
2011-05-26 11:15:25 -03:00
header.h
perf tools: Move evlist sample helpers to evlist area
2011-05-22 03:12:29 +02:00
help.c
perf tools: Remove some unused functions
2010-05-18 23:03:35 -03:00
help.h
perf tools: Protect header files with a consistent style
2009-09-24 21:27:51 +02:00
hist.c
perf tools: Don't display ignored entries on stdio ui
2011-06-30 00:26:33 +02:00
hist.h
perf session: Pass evsel in event_ops->sample()
2011-03-23 19:28:58 -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 tools: Fix 64 bit integer format strings
2011-01-22 23:41:57 -02:00
map.h
perf probe: Add basic module support
2010-10-21 16:11:44 -02:00
pager.c
perf_counter tools: Remove dead code
2009-06-27 06:06:39 +02:00
parse-events.c
perf: Fix multi-event parsing bug
2011-05-17 20:45:36 +02:00
parse-events.h
perf script: Add support for H/W and S/W events
2011-03-14 17:07:20 -03:00
parse-options.c
perf options: Type check all the remaining OPT_ variants
2010-05-17 16:22:41 -03:00
parse-options.h
perf options: add OPT_CALLBACK_DEFAULT_NOOPT
2010-12-06 15:33:29 -02:00
path.c
perf tools: add test for strlcpy()
2010-08-21 11:22:47 -03:00
PERF-VERSION-GEN
perf: clear out make flags when calling kernel make kernelver
2011-06-15 22:12:55 +02:00
probe-event.c
perf probe: Fix multiple --vars options behavior
2011-04-05 15:36:04 -03:00
probe-event.h
perf probe: Add filters support for available functions
2011-01-28 09:20:25 -02:00
probe-finder.c
perf probe: Fix the missed parameter initialization
2011-05-10 17:06:23 +02:00
probe-finder.h
perf probe: Add fastpath to do lookup by function name
2011-03-29 13:40:27 -03:00
pstack.c
perf newt: Make <- zoom out filters
2010-05-14 20:05:21 -03:00
pstack.h
perf ui: Move hists browser to util/ui/browsers/
2010-08-10 16:11:08 -03:00
python.c
perf python: Fix argument name list of read_on_cpu()
2011-06-03 10:09:22 -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
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 report/annotate/script: Add option to specify a CPU range
2011-07-05 10:44:44 +02:00
session.h
perf report/annotate/script: Add option to specify a CPU range
2011-07-05 10:44:44 +02:00
setup.py
perf tools: Fix NO_NEWT=1 python build error
2011-03-29 16:46:57 -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: Allow sort dimensions to be registered more than once
2011-06-30 00:26:41 +02:00
sort.h
perf tools: Remove sort print helpers declarations
2011-06-30 00:26:19 +02:00
strbuf.c
perf tools: Remove some unused functions
2010-05-18 23:03:35 -03:00
strbuf.h
perf tools: Remove some unused functions
2010-05-18 23:03:35 -03:00
strfilter.c
perf: Fix missing strndup declaration
2011-03-04 01:17:18 +01:00
strfilter.h
perf tools: Add strfilter for general purpose string filter
2011-01-28 09:19:38 -02:00
string.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
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: Fix black idle boxes in the title
2011-02-28 08:56:14 +01:00
svghelper.h
perf tools: Protect header files with a consistent style
2009-09-24 21:27:51 +02:00
symbol.c
perf symbols: Handle /proc/sys/kernel/kptr_restrict
2011-05-26 11:15:25 -03:00
symbol.h
perf symbols: Handle /proc/sys/kernel/kptr_restrict
2011-05-26 11:15:25 -03:00
thread_map.c
perf threads: Move thread_map to separate file
2011-01-24 10:59:00 -02:00
thread_map.h
perf threads: Move thread_map to separate file
2011-01-24 10:59:00 -02:00
thread.c
perf threads: Move thread_map to separate file
2011-01-24 10:59:00 -02:00
thread.h
perf threads: Move thread_map to separate file
2011-01-24 10:59:00 -02:00
top.c
perf top: Remove redundant syme->origin field
2011-03-11 13:28:45 -03:00
top.h
perf symbol: Move sym_entry->skip to symbol->ignore
2011-03-11 13:36:01 -03:00
trace-event-info.c
perf tools: Introduce event selectors
2011-01-03 16:39:04 -02:00
trace-event-parse.c
rcu: Use softirq to address performance regression
2011-06-14 15:25:39 -07:00
trace-event-read.c
perf: Use read() instead of lseek() in trace_event_read.c:skip()
2010-05-20 08:37:17 +02:00
trace-event-scripting.c
perf session: Pass evsel in event_ops->sample()
2011-03-23 19:28:58 -03:00
trace-event.h
perf session: Pass evsel in event_ops->sample()
2011-03-23 19:28:58 -03:00
types.h
perf tools: Fix 64 bit integer format strings
2011-01-22 23:41:57 -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 util: Move do_read from session to util
2011-01-03 16:50:55 -02:00
util.h
perf tools: Makefile: Remove platform-specific cruft
2011-02-18 07:42:07 -02:00
values.c
perf tools: Fix 64 bit integer format strings
2011-01-22 23:41:57 -02:00
values.h
perf tools: Protect header files with a consistent style
2009-09-24 21:27:51 +02:00
wrapper.c
perf tools: remove xstrndup, xmalloc, xzalloc
2010-05-18 23:05:28 -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