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linux/tools/perf/util
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Jiri Olsa 7aaf6b3551 perf diff: Add ratio computation way to compare hist entries 
Adding -c option to select computation method with the current 'Delta'
computation as default. Current possible values are of this option are:
'delta' and 'ratio'.

Adding 'ratio' as new computation way to compare hist entries.  If
specified the 'Ratio' column is displayed with value 'r' computed as:

  r = A->period / B->period

with:
  - A/B being matching hist entry from first/second file specified
    (or perf.data/perf.data.old) respectively.
  - period being the hist entry period value

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
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/1349448287-18919-3-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05 14:06:54 -03:00
..
include
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
scripting-engines
perf tools: Fix a compiling error in trace-event-perl.c for 32 bits machine
2012-09-20 08:30:21 -03:00
abspath.c
perf tools: Remove some unused functions
2010-05-18 23:03:35 -03:00
alias.c
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
annotate.c
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
annotate.h
perf tools: Convert to NEWT_SUPPORT
2012-10-02 18:36:22 -03:00
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 __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
build-id.h
perf tools: Rename perf_event_ops to perf_tool
2011-11-28 10:39:28 -02:00
cache.h
perf tools: Convert to HAVE_STRLCPY
2012-10-02 18:36:24 -03:00
callchain.c
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
callchain.h
perf callchain: Make callchain cursors TLS
2012-05-31 10:47:12 -03:00
cgroup.c
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
cgroup.h
perf tool: Add cgroup support
2011-02-16 13:30:48 +01:00
color.c
perf tools: Use scnprintf where applicable
2012-03-14 12:36:19 -03:00
color.h
perf hist: Replace ->print() routines by ->snprintf() equivalents
2010-04-02 16:28:15 -03:00
config.c
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
cpumap.c
perf stat: Check PMU cpumask file
2012-09-17 13:12:02 -03:00
cpumap.h
perf tools: Allow handling a NULL cpu_map as meaning "all cpus"
2012-09-26 12:41:14 -03:00
ctype.c
perf tools: ctype.c only wants util.h
2012-02-13 23:17:40 -02:00
debug.c
perf tools: Convert to GTK2_SUPPORT
2012-10-02 18:36:23 -03:00
debug.h
perf tools: Convert to GTK2_SUPPORT
2012-10-02 18:36:23 -03:00
debugfs.c
perf tools: Remove unused functions from debugfs object
2012-02-13 23:25:38 -02:00
debugfs.h
perf tools: Remove unused functions from debugfs object
2012-02-13 23:25:38 -02:00
dso-test-data.c
perf tools: replace mkostemp with mkstemp
2012-09-07 22:10:44 -03:00
dwarf-aux.c
perf probe: Print an enum type variable in "enum variable-name" format when showing accessible variables
2012-09-27 10:58:57 -03:00
dwarf-aux.h
perf probe: Search concrete out-of-line instances
2011-08-12 09:32:10 -03:00
environment.c
perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/
2009-06-06 20:33:43 +02:00
event.c
perf symbols: Filter samples with unresolved symbol when "--symbols" option is used
2012-09-17 13:10:57 -03:00
event.h
perf tools: fix ALIGN redefinition in system headers
2012-09-11 11:48:30 -03:00
evlist.c
perf evlist: Remove some unused methods
2012-10-03 11:52:07 -03:00
evlist.h
perf evlist: Remove some unused methods
2012-10-03 11:52:07 -03:00
evsel.c
perf evsel: Export the event_format constructor
2012-09-26 20:24:19 -03:00
evsel.h
perf evsel: Export the event_format constructor
2012-09-26 20:24:19 -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
perf tools: Convert to LIBELF_SUPPORT
2012-09-28 21:07:36 -03:00
header.c
perf evsel: Know if byte swap is needed
2012-09-26 12:48:18 -03:00
header.h
perf header: Remove perf_header__read_feature
2012-09-24 11:47:46 -03:00
help.c
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
help.h
perf tools: Protect header files with a consistent style
2009-09-24 21:27:51 +02:00
hist.c
perf hists: Add more helpers for hist entry stat
2012-10-04 13:36:18 -03:00
hist.h
perf diff: Add ratio computation way to compare hist entries
2012-10-05 14:06:54 -03:00
hweight.c
perf tools: Don't use code surrounded by __KERNEL__
2010-05-02 12:00:44 -03:00
intlist.c
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
intlist.h
perf tools: Introduce intlist
2012-08-03 10:42:25 -03:00
levenshtein.c
perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/
2009-06-06 20:33:43 +02:00
levenshtein.h
perf tools: Protect header files with a consistent style
2009-09-24 21:27:51 +02:00
map.c
perf tools: Convert to LIBELF_SUPPORT
2012-09-28 21:07:36 -03:00
map.h
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
pager.c
perf tools: Fix pager on minimal-install embedded systems
2012-05-30 15:10:39 -03:00
parse-events-test.c
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
parse-events.c
perf tools: Use perf_evsel__newtp in the event parser
2012-09-26 18:29:19 -03:00
parse-events.h
perf tools: Catch event names from command line
2012-08-22 13:40:49 -03:00
parse-events.l
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
parse-events.y
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
parse-options.c
perf tools: Long option completion support for each subcommands
2012-10-02 18:36:44 -03:00
parse-options.h
perf tools: Long option completion support for each subcommands
2012-10-02 18:36:44 -03:00
path.c
perf tools: Convert to HAVE_STRLCPY
2012-10-02 18:36:24 -03:00
perf_regs.h
perf tools: Convert to LIBUNWIND_SUPPORT
2012-10-02 17:56:01 -03:00
PERF-VERSION-GEN
perf tools: Make --version show kernel version instead of pull req tag
2012-05-31 11:20:59 -03:00
pmu.c
perf stat: Check PMU cpumask file
2012-09-17 13:12:02 -03:00
pmu.h
perf stat: Check PMU cpumask file
2012-09-17 13:12:02 -03:00
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: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
probe-event.c
perf tools: remove sscanf extension %as
2012-09-24 11:49:31 -03:00
probe-event.h
perf probe: Provide perf interface for uprobes
2012-05-11 13:58:17 -03:00
probe-finder.c
perf probe: Add union member access support
2012-09-14 15:48:08 -03:00
probe-finder.h
perf tools: Eliminate duplicate code and use PATH_MAX consistently
2011-11-28 10:11:04 -02:00
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-ext-sources
perf tools: Add missing files to build the python binding
2012-08-14 14:17:30 -03:00
python.c
perf evsel: Know if byte swap is needed
2012-09-26 12:48:18 -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 tools: Introducing rblist
2012-08-03 10:37:21 -03:00
rblist.h
perf tools: Introducing rblist
2012-08-03 10:37:21 -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 evsel: Know if byte swap is needed
2012-09-26 12:48:18 -03:00
session.h
perf diff: Make diff command work with evsel hists
2012-09-07 21:44:02 -03:00
setup.py
perf tools: Fix build dependency of perf python extension
2012-02-13 18:01:25 -02:00
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 sort__has_sym
2012-09-17 13:08:59 -03:00
sort.h
perf hists: Introduce struct he_stat
2012-10-04 13:34:22 -03:00
stat.c
perf stat: Move stats related code to util/stat.c
2012-09-17 13:10:03 -03:00
stat.h
perf stat: Move stats related code to util/stat.c
2012-09-17 13:10:03 -03:00
strbuf.c
perf tools: Use scnprintf where applicable
2012-03-14 12:36:19 -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
perf tools: Add memdup function
2012-09-11 12:04:41 -03:00
strlist.c
perf tools: Remove the node from rblist in strlist__remove
2012-09-05 17:36:42 -03:00
strlist.h
perf tools: Change strlist to use the new rblist
2012-08-03 10:39:51 -03:00
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-elf.c
perf symbols: Fix builds with NO_LIBELF set
2012-08-20 09:35:22 -03:00
symbol-minimal.c
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
symbol.c
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
symbol.h
perf tools: Convert to LIBELF_SUPPORT
2012-09-28 21:07:36 -03:00
sysfs.c
perf tools: Add sysfs mountpoint interface
2012-02-13 23:27:15 -02:00
sysfs.h
perf tools: Add sysfs mountpoint interface
2012-02-13 23:27:15 -02:00
target.c
perf tools: Replace mempcpy with memcpy
2012-09-05 19:35:21 -03:00
target.h
perf target: Add uses_mmap field
2012-05-17 12:32:54 -03:00
thread_map.c
perf tools: fix thread_map__new_by_pid_str() memory leak in error path
2012-05-25 11:40:59 -03:00
thread_map.h
perf tools: Fix thread map that is type pid_t
2012-04-11 17:38:50 -03:00
thread.c
perf session: Move threads to struct machine
2011-11-28 10:35:31 -02:00
thread.h
perf kvm: Events analysis tool
2012-09-21 12:51:22 -03:00
tool.h
perf tools: Save some loops using perf_evlist__id2evsel
2011-11-28 17:57:40 -02:00
top.c
perf evlist: Introduce evsel list accessors
2012-08-15 10:14:18 -03:00
top.h
perf tools: fix missing winsize definition
2012-09-07 22:07:32 -03:00
trace-event-info.c
perf: Have perf use the new libtraceevent.a library
2012-04-25 13:28:48 +02:00
trace-event-parse.c
perf tools: remove sscanf extension %as
2012-09-24 11:49:31 -03:00
trace-event-read.c
perf tools: Stop using a global trace events description list
2012-06-27 13:08:42 -03:00
trace-event-scripting.c
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
trace-event.h
perf tools: Support for DWARF CFI unwinding on post processing
2012-08-11 15:06:56 -03:00
types.h
perf tools: Add union u64_swap type for swapping u64 data
2012-05-22 12:50:25 -03:00
unwind.c
perf tools: Use __maybe_used for unused variables
2012-09-11 12:19:15 -03:00
unwind.h
perf tools: Convert to LIBUNWIND_SUPPORT
2012-10-02 17:56:01 -03:00
usage.c
perf target: Introduce perf_target__parse_uid()
2012-05-07 16:46:48 -03:00
util.c
perf tools: Convert to BACKTRACE_SUPPORT
2012-10-02 18:36:45 -03:00
util.h
perf tools: include wrapper for magic.h
2012-09-11 11:38:10 -03:00
values.c
perf tools: Fix a memory leak on perf_read_values_destroy
2011-12-20 13:41:34 -02:00
values.h
perf tools: Protect header files with a consistent style
2009-09-24 21:27:51 +02:00
vdso.c
perf tools: Back [vdso] DSO with real data
2012-09-11 12:08:30 -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