From: Andi Kleen <andi@firstfloor.org>
To: Omar Awile <omar.awile@cern.ch>
Cc: "linux-perf-users@vger.kernel.org"
<linux-perf-users@vger.kernel.org>,
Aram Santogidis <aram.santogidis@cern.ch>
Subject: Re: perf record and intel_cqm/llc_occupancy
Date: Thu, 23 Jun 2016 13:53:38 -0700 [thread overview]
Message-ID: <8760szocdp.fsf@tassilo.jf.intel.com> (raw)
In-Reply-To: <etPan.576ab1e0.2383613b.84d3@cern.ch> (Omar Awile's message of "Wed, 22 Jun 2016 15:42:25 +0000")
Omar Awile <omar.awile@cern.ch> writes:
>
> Is it possible that for intel_cqm/llc_occupancy interrupts are not
> supported?5A
Interrupts wouldn't be meaningful on these counters because they
don't count continuous events, but just report the current cache
occupancy. So yes.
You can use perf stat -I ... instead to get a time series.
-Andi
next prev parent reply other threads:[~2016-06-23 20:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-22 15:42 perf record and intel_cqm/llc_occupancy Omar Awile
2016-06-23 20:53 ` Andi Kleen [this message]
2016-06-24 12:27 ` Omar Awile
2016-06-24 16:43 ` Andi Kleen
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