linux-stable-rt/tools/perf
Frederic Weisbecker 800cd25c12 perf: mmap 512 kiB by default
The default setting of perf record is to mmap 128 pages if the user
did not override with -m.

However the page size may vary accross different architecture
settings, giving different default size between each.

Moreover the kernel side still has a default max number of mlocked
pages of 512 kiB + 1 page for unprivileged users. 128 + 1 pages
with page size > 4096 overlaps this threshold.

Thus, better adapt to this limitation and set the default number of
pages to fit those 512 kiB + 1 page.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Stephane Eranian <eranian@google.com>
LKML-Reference: <1301535324-9735-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-03-31 13:02:55 +02:00
..
Documentation perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
arch
bench perf tool: Fix gcc 4.6.0 issues 2011-02-07 12:41:41 -02:00
python perf evlist: Store pointer to the cpu and thread maps 2011-01-31 12:40:52 -02:00
scripts
util Merge commits 'ca6a42586fae' and 'c286c419c784' into perf/urgent 2011-03-30 09:08:39 +02:00
.gitignore perf tools: Makefile: Remove various and sundry cruft 2011-02-18 07:43:06 -02:00
CREDITS
MANIFEST
Makefile perf tools: Fix NO_NEWT=1 python build error 2011-03-29 16:46:57 -03:00
builtin-annotate.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-bench.c
builtin-buildid-cache.c
builtin-buildid-list.c
builtin-diff.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-evlist.c perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
builtin-help.c
builtin-inject.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-kmem.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-kvm.c
builtin-list.c perf list: Allow filtering list of events 2011-02-17 15:38:58 -02:00
builtin-lock.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-probe.c perf probe: Use %td for pointer arithmetic result 2011-01-31 19:45:38 -02:00
builtin-record.c perf: mmap 512 kiB by default 2011-03-31 13:02:55 +02:00
builtin-report.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-sched.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-script.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-stat.c perf stat: Provide support for filters 2011-03-14 13:37:52 -03:00
builtin-test.c perf evlist: Store pointer to the cpu and thread maps 2011-01-31 12:40:52 -02:00
builtin-timechart.c perf session: Pass evsel in event_ops->sample() 2011-03-23 19:28:58 -03:00
builtin-top.c perf tools: Emit clearer message for sys_perf_event_open ENOENT return 2011-03-29 13:40:27 -03:00
builtin.h perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
command-list.txt perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
design.txt
feature-tests.mak
perf-archive.sh
perf.c perf evlist: New command to list the names of events present in a perf.data file 2011-03-15 11:10:48 -03:00
perf.h perf record: Move perf_mmap__write_tail to perf.h 2011-01-22 19:56:29 -02:00