Re: perf record: can I specify multiple events and use differentsample-after value

From: Namhyung Kim
Date: Thu Feb 23 2012 - 02:40:43 EST


2012-02-23 3:57 AM, Yuanfang Chen wrote:
On Wed, Feb 22, 2012 at 1:01 AM, Namhyung Kim <namhyung.kim@xxxxxxx> wrote:
2012-02-22 10:59 AM, Yuanfang Chen wrote:
The "-l" option was meaningful only if you specified events more than the
actual number of counters in the PMU.

So -l is for multiplexing?


The "-l" option is no longer supported in perf record/report and multiplexing is always enabled by default, if needed. That would be the same even for old versions AFAIK, and "-l" option just controlled whether it'd scale or not the counter value which is taken from already multiplexed events.


Thanks,
Namhyung
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