tree a1c597604dcb239804684f452263bec295d77ae3
parent 064739bc4b3d7f424b2f25547e6611bcf0132415
author Ingo Molnar <mingo@elte.hu> 1254834861 +0200
committer Ingo Molnar <mingo@elte.hu> 1254836469 +0200

perf tools: Default to 1 KHz auto-sampling freq events

Use auto-freq events by default in perf record and
perf top.

This allows more consistent hardware event sampling,
regardless of the intensity of the underlying event.

It also keeps us from over-sampling on larger/busier
systems.

(also make surrounding initializations more consistent)

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>