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 <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Stephane Eranian <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>

2011-03-31 13:02:55 +02:00

..

firewire

tools/firewire: nosy-dump: increment program version

2010-07-27 11:04:12 +02:00

perf

perf: mmap 512 kiB by default

2011-03-31 13:02:55 +02:00

power/x86

tools: turbostat: style updates

2011-02-10 23:58:13 -05:00

slub

slub: move slabinfo.c to tools/slub/slabinfo.c

2010-11-06 09:04:32 +02:00

testing/ktest

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest

2011-03-21 14:13:48 -07:00

usb

USB: ffs-test: fix header path

2011-02-28 19:27:12 -08:00

virtio

tools/virtio: virtio_test tool

2010-12-09 16:00:22 +02:00