From: David Daney <ddaney@caviumnetworks.com>
To: Giant Sand Fan's <rampxxxx@gmail.com>
Cc: linux-mips@linux-mips.org
Subject: Re: Cavium mips64 perf counters
Date: Mon, 26 Apr 2010 10:06:00 -0700 [thread overview]
Message-ID: <4BD5C7F8.6050406@caviumnetworks.com> (raw)
In-Reply-To: <l2p417f50831004260640o684d0f8fgf6a3aa60450e329c@mail.gmail.com>
On 04/26/2010 06:40 AM, Giant Sand Fan's wrote:
> Hi,
>
> I'm trying to calculate de CPU load by access the performance counters
> in mips and I haved reading in the cp0 but my problem is that I cannot
> find documentation about the real meaning of these counters :
>
> 1.-LOG_PERF_CNT_NISSUE : ¿means cycle with no issue?
>
> 2.-LOG_PERF_CNT_SISSUE : ¿means cycle with issue?
Single issue.
>
> 3.-LOG_PERF_CNT_DISSUE: ¿means cycle with double issue?
>
That's right. And PERF_CNT_CLK is the number of cycles.
David Daney
next prev parent reply other threads:[~2010-04-26 17:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-26 13:40 Cavium mips64 perf counters Giant Sand Fan's
2010-04-26 17:06 ` David Daney [this message]
2010-04-27 8:24 ` Giant Sand Fan's
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