On 8/27/12 2:51 PM, Andi Kleen wrote:
Andrew Vagin <ava...@openvz.org> writes:
My code saves sched_switch event for each process and when it meets
stat_iowait, it reports the sched_switch event, because this event
contains a correct callchain. By another words it replaces all
stat_iowait events on proper sched_switch events.
Is there any way to generalize this to arbitary events? I found myself
writing scripts to compute lengths between various events. But I
You mean delta-time between events? I have toyed around with patches to
perf-script for this -- dt between same event on a cpu, dt between
consecutive events on a cpu, dt between events for a thread, etc.
David
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