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Re: Question About Timers for Performance Analysis on BCM1480/1250 Syste

To: Gary Smith <gary.smith@3phoenix.com>
Subject: Re: Question About Timers for Performance Analysis on BCM1480/1250 Systems
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 21 Jun 2007 18:06:01 +0100
Cc: linux-mips@linux-mips.org
In-reply-to: <005a01c7b28b$ed279120$8facaac0@3PiGAS>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <005a01c7b28b$ed279120$8facaac0@3PiGAS>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.14 (2007-02-12)
On Tue, Jun 19, 2007 at 12:07:21PM -0400, Gary Smith wrote:

> The following message thread is present in the Linux-Mips archives regarding
> the use of gettimeofday on Broadcom MIPS systems.
> http://www.linux-mips.org/archives/linux-mips/2006-01/msg00144.html  The
> message thread specifically addresses the Dual-core Broadcom 1250 system,
> and the kernel version mentioned in the message thread is 2.6.12.  I looked
> at the files mentioned in the message thread in the 2.6.17 kernel, and the
> changes suggested for arch/mips/dec/time.c were present in 2.6.17.  However,
> the subsequent patches suggested in the message thread were not present in
> the version of the 2.6.17 kernel I checked.  We'd like to ask if the patches
> suggested in the message thread have been observed to influence performance
> numbers obtained by other Linux system developers for Quad-core Broadcom
> 1480 systems?  If so, do the Linux-Mips developers suggest that we apply the
> patches suggested in the message thread for our Broadcom 1480 MIPS specific
> Linux 2.6.17 system implementation?

The patch never went in.

I'm currently turning the entire time code upside down which will also solve
this issue.

  Ralf

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