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Davidlohr Bueso e19685ed24 perf bench futex: Sanitize -q option in requeue 
When given the number of threads to requeue at once by user input,
there's always the risk of this value being larger than the total number
of threads.  This doesn't make any sense, and the kernel can easily deal
with such sort of situations, hence no big deal. We should however
prevent bogus output such as:

./perf bench --repeat 2 futex requeue -q 10
Run summary [PID 22210]: Requeuing 4 threads (from [private] 0x99ef3c to 0x99ef38), 10 at a time.

[Run 1]: Requeued 10 of 4 threads in 0.0040 ms
[Run 2]: Requeued 10 of 4 threads in 0.0030 ms
Requeued 10 of 4 threads in 0.0035 ms (+-14.29%)

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Davidlohr Bueso <dbueso@suse.de>
Link: http://lkml.kernel.org/r/1412008868-22328-2-git-send-email-dave@stgolabs.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-09-29 15:43:26 -03:00
..
arch perf tool: fix compilation for ARM 2014-09-17 17:08:09 -03:00
bench perf bench futex: Sanitize -q option in requeue 2014-09-29 15:43:26 -03:00
config perf tools: Fix GNU-only grep usage in Makefile 2014-09-17 17:08:09 -03:00
Documentation perf tools: Disable kernel symbol demangling by default 2014-09-17 17:08:09 -03:00
python perf python: Remove duplicate TID bit from mask 2013-08-07 17:35:25 -03:00
scripts perf script: Add callchain to generic and tracepoint events 2014-07-16 17:57:33 -03:00
tests tools lib fd array: Allow associating an integer cookie with each entry 2014-09-25 16:46:55 -03:00
ui perf hists browser: Fix callchain print bug on TUI 2014-09-26 12:38:02 -03:00
util perf tools: Refactor unit and scale function parameters 2014-09-29 15:03:57 -03:00
.gitignore perf tools: Add perf-with-kcore script 2014-09-17 17:08:08 -03:00
builtin-annotate.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-bench.c perf bench: Add --repeat option 2014-06-19 16:13:15 -03:00
builtin-buildid-cache.c perf buildid-cache: Use strerror_r instead of strerror 2014-08-15 13:07:59 -03:00
builtin-buildid-list.c perf session: Separating data file properties from session 2013-10-21 17:33:25 -03:00
builtin-diff.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-evlist.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-help.c perf help: Use strerror_r instead of strerror 2014-08-15 13:08:26 -03:00
builtin-inject.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-kmem.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-kvm.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-list.c perf list: Add usage 2013-11-05 14:26:41 -03:00
builtin-lock.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-mem.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-probe.c perf probe: Do not access kallsyms when analyzing user binaries 2014-09-17 18:01:14 -03:00
builtin-record.c perf tools: Convert {record,top}.call-graph option to call-graph.record-mode 2014-09-26 12:43:53 -03:00
builtin-report.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-sched.c perf sched: Use strerror_r instead of strerror 2014-08-15 13:07:47 -03:00
builtin-script.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-stat.c perf stat: Fix --per-core on multi socket systems 2014-09-26 10:17:13 -03:00
builtin-timechart.c perf tools: Modify error code for when perf_session__new() fails 2014-09-26 12:32:58 -03:00
builtin-top.c perf tools: Convert {record,top}.call-graph option to call-graph.record-mode 2014-09-26 12:43:53 -03:00
builtin-trace.c perf trace: Fix mmap return address truncation to 32-bit 2014-09-29 15:25:36 -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
CREDITS
design.txt perf tools: Update some code references in design.txt 2014-03-18 18:17:06 -03:00
Makefile perf tools: Add 'build-test' make target 2014-01-16 16:26:26 -03:00
Makefile.perf tools lib api: Adopt fdarray class from perf's evlist 2014-09-25 16:46:55 -03:00
MANIFEST perf kvm: Add stat support on s390 2014-07-16 17:57:33 -03:00
perf-archive.sh perf archive: Make 'f' the last parameter for tar 2012-09-17 13:10:42 -03:00
perf-completion.sh perf sched: Introduce --list-cmds for use by scripts 2014-04-16 17:16:05 +02:00
perf-sys.h perf tools: Allow to use cpuinfo on s390 2014-07-07 16:55:24 -03:00
perf-with-kcore.sh perf tools: Add perf-with-kcore script 2014-09-17 17:08:08 -03:00
perf.c perf: Use strerror_r instead of strerror 2014-08-15 10:54:29 -03:00
perf.h perf tools: Move callchain config from record_opts to callchain_param 2014-09-26 12:40:33 -03:00