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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-05-18 04:33:24 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-05-18 12:35:48 -0400 |
| commit | c7920614cebbf269a7c8397ff959a8dcf727465c (patch) | |
| tree | d1ca38ee77cb4160660efb97b8bdc2e5c44967c1 /Documentation | |
| parent | a19d35c11fd559dd7dfd5a2078df7c9af74a5d88 (diff) | |
perf: Disallow mmap() on per-task inherited events
Since we now have working per-task-per-cpu events for
a while, disallow mmap() on per-task inherited
events. Those things were a performance problem
anyway, and doing away with it allows us to optimize
the buffer somewhat by assuming there is only a
single writer.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions