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Re: Where is op_model_mipsxx.c ?

To: David Daney <ddaney@avtrex.com>
Subject: Re: Where is op_model_mipsxx.c ?
From: Matej Kupljen <matej.kupljen@ultra.si>
Date: Wed, 26 Oct 2005 08:35:02 +0200
Cc: linux-mips@linux-mips.org
In-reply-to: <435E48CB.6040607@avtrex.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <4343525A.6080605@avtrex.com> <20051005104437.GG2699@linux-mips.org> <1130239559.25742.19.camel@localhost.localdomain> <435E48CB.6040607@avtrex.com>
Sender: linux-mips-bounce@linux-mips.org
Hi

> If there are no performance counters, OProfile can still use the system 
> timer to take samples each clock tick.  This is the way I am using it.

Thanks for the info.

> To use it in this manner you have to hack up the code a bit so that the 
> return value of oprofile_arch_init() (in oprofile/common.c) is -ENODEV.

I'll try that and let you know the results.

I want to use the profiler, because the network performance of dbau1200
is very poor (with 2.6.14-rc2 and smc91x driver I get around 12Mbit/s!).

I check the traffic of netperf with ethereal and I see quite a lot
of duplicated packets (see the attached file with a few packets).
I think think this is also the reason that NFS is so slow.

BR,
Matej


Attachment: netperf_dump.txt
Description: Text document

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