[Top] [All Lists]

Re: Cavium mips64 perf counters

To: Giant Sand Fan's <>
Subject: Re: Cavium mips64 perf counters
From: David Daney <>
Date: Mon, 26 Apr 2010 10:06:00 -0700
In-reply-to: <>
Original-recipient: rfc822;
References: <>
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20100330 Fedora/3.0.4-1.fc12 Thunderbird/3.0.4
On 04/26/2010 06:40 AM, Giant Sand Fan's wrote:

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

<Prev in Thread] Current Thread [Next in Thread>