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authorIngo Molnar <mingo@elte.hu>2009-09-13 17:33:44 +0200
committerIngo Molnar <mingo@elte.hu>2009-09-13 17:33:44 +0200
commit459ec28ab404d7afcd512ce9b855959ad301605a (patch)
tree5c17a0f919242bafffd29cea65a62139a34c2aeb /tools/perf/Documentation/perf-sched.txt
parent1fc35b29b4098aa3bf9fc9acb4c1615d0b5dd95d (diff)
downloadlinux-459ec28ab404d7afcd512ce9b855959ad301605a.tar.gz
perf_counter: Allow mmap if paranoid checks are turned off
Before: $ perf sched record -f sleep 1 Error: failed to mmap with 1 (Operation not permitted) After: $ perf sched record -f sleep 1 [ perf record: Captured and wrote 0.095 MB perf.data (~4161 samples) ] Note, this is only allowed if perfcounter_paranoid is set to the most permissive (non-default) value of -1. Cc: 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>
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