OpenCloudOS-Kernel/tools/perf
David Ahern 45528f7c69 perf stats: Fix divide by 0 in variance
Number of samples needs to be greater 1 to have a variance.

Fixes nan% in perf-kvm-live output.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Runzhen Wang <runzhen@linux.vnet.ibm.com>
Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1369527896-3650-9-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-05-28 16:24:04 +03:00
..
Documentation perf top: Add --percent-limit option 2013-05-28 16:24:01 +03:00
arch perf tools: Fix build on non-glibc systems due to libio.h absence 2013-03-15 13:05:13 -03:00
bench perf tools: Fix LIBNUMA build with glibc 2.12 and older. 2013-03-14 08:06:21 -03:00
config perf tools: Remove dependency on libnewt 2013-04-01 12:23:21 -03:00
python perf python: Use attr.watermark in twatch.py 2012-01-30 18:38:23 -02:00
scripts perf: net_dropmonitor: Remove progress indicator 2013-05-22 15:10:11 -07:00
tests perf test: Fix typo 2013-05-28 16:24:03 +03:00
ui perf top: Add --percent-limit option 2013-05-28 16:24:01 +03:00
util perf stats: Fix divide by 0 in variance 2013-05-28 16:24:04 +03:00
.gitignore perf tools: Ignore compiled python binaries 2012-09-07 12:10:58 -03:00
CREDITS perf_counter tools: Add CREDITS file for Git contributors 2009-06-24 19:54:29 +02:00
MANIFEST perf tools: Introduce tools/lib/lk library 2013-03-15 13:06:00 -03:00
Makefile perf tools: Fix tab vs spaces issue in Makefile ifdef/endif 2013-05-28 16:23:57 +03:00
bash_completion perf tools: Complete tracepoint event names 2012-10-04 12:44:52 -03:00
builtin-annotate.c perf tools: Add support for weight v7 (modified) 2013-04-01 12:19:43 -03:00
builtin-bench.c perf tools: Make numa benchmark optional 2013-01-30 10:36:21 -03:00
builtin-buildid-cache.c perf buildid-cache: Add --update option 2013-02-14 14:59:27 -03:00
builtin-buildid-list.c perf symbols: Generalize filter in __fprintf_buildid methods 2012-12-09 08:46:07 -03:00
builtin-diff.c perf diff: Use internal rb tree for hists__precompute 2013-05-28 16:24:02 +03:00
builtin-evlist.c perf evlist: Pass the event_group info via perf_attr_details 2013-02-06 18:09:28 -03:00
builtin-help.c perf help: Fix --help for builtins 2012-10-22 12:35:49 -02:00
builtin-inject.c perf inject: Mark a dso if it's used 2012-10-26 11:22:25 -02:00
builtin-kmem.c perf kmem: Use memdup() 2013-01-25 12:49:28 -03:00
builtin-kvm.c perf kvm: Handle realloc failures 2013-05-28 16:24:04 +03:00
builtin-list.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
builtin-lock.c perf tools: Add a global variable "const char *input_name" 2012-10-29 11:45:34 -02:00
builtin-mem.c perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
builtin-probe.c perf tools: Introduce tools/lib/lk library 2013-03-15 13:06:00 -03:00
builtin-record.c perf record: handle death by SIGTERM 2013-05-28 16:23:58 +03:00
builtin-report.c perf report: Add report.percent-limit config variable 2013-05-28 16:24:02 +03:00
builtin-sched.c Revert "perf sched: Handle PERF_RECORD_EXIT events" 2013-04-01 12:22:34 -03:00
builtin-script.c perf script: Don't display trace info when invoking scripts 2013-01-24 16:40:52 -03:00
builtin-stat.c perf stat: Add per-core aggregation 2013-03-25 16:13:26 -03:00
builtin-timechart.c perf tools: Add a global variable "const char *input_name" 2012-10-29 11:45:34 -02:00
builtin-top.c perf top: Add --percent-limit option 2013-05-28 16:24:01 +03:00
builtin-trace.c perf trace: Free evlist resources properly on return path 2013-03-15 13:06:11 -03:00
builtin.h perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
command-list.txt perf tools: Add new mem command for memory access profiling 2013-04-01 12:21:44 -03:00
design.txt perf tools: Update ioctl documentation for PERF_IOC_FLAG_GROUP 2012-05-31 11:38:42 -03:00
perf-archive.sh perf archive: Make 'f' the last parameter for tar 2012-09-17 13:10:42 -03:00
perf.c perf tools: Convert needless static variable to local 2013-04-01 12:22:48 -03:00
perf.h perf tools: Add support for weight v7 (modified) 2013-04-01 12:19:43 -03:00