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From: James Cleverdon <jamesclv@us.ibm.com>
To: john stultz <johnstul@us.ibm.com>, george anzinger <george@mvista.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
	Marcelo Tosatti <marcelo@conectiva.com.br>,
	lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] tsc-disable_B9
Date: Mon, 12 Aug 2002 18:23:26 -0700	[thread overview]
Message-ID: <200208121823.26918.jamesclv@us.ibm.com> (raw)
In-Reply-To: <1028926681.1118.64.camel@cog>

On Friday 09 August 2002 01:58 pm, john stultz wrote:
[ Snip! ]

> (also, doesn't MS have some sort of high res performance counter
> standard they're pushing for in hardware?), ...

Yeah, I think that's called DIG64.  They had a reasonably nice HW timer setup, 
but not so nice for NUMA synchronization as the one we built into the 
[[Deleted by IP Police]] chipset.  That had snapshot and delta adjust logic, 
to synchronize nodes to one interconnect bus clock cycle.  Too bad that 
project was canned....

-- 
James Cleverdon
IBM xSeries Linux Solutions
{jamesclv(Unix, preferred), cleverdj(Notes)} at us dot ibm dot com


  reply	other threads:[~2002-08-13  1:20 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-08-08  1:53 [PATCH] tsc-disable_B9 john stultz
2002-08-08  2:15 ` [PATCH] cyclone-timer_A9 john stultz
2002-08-08 13:18   ` Alan Cox
2002-08-09  2:03     ` john stultz
2002-08-08 13:17 ` [PATCH] tsc-disable_B9 Alan Cox
2002-08-09  2:30   ` john stultz
2002-08-09  9:17     ` Alan Cox
2002-08-09 17:46       ` john stultz
2002-08-09 18:49         ` george anzinger
2002-08-09 20:58           ` john stultz
2002-08-13  1:23             ` James Cleverdon [this message]
2002-08-11 20:16         ` Alan Cox
2002-08-15 16:56     ` Andrea Arcangeli
2002-08-16 11:15       ` Alan Cox
2002-08-16 13:19         ` Mikael Pettersson
2002-08-21 13:12           ` Andrea Arcangeli
2002-08-21 14:10             ` Alan Cox
2002-08-21 14:33               ` Andrea Arcangeli
2002-08-21 15:01                 ` Alan Cox
2002-08-21 16:13                   ` Andrea Arcangeli
2002-08-21 16:25                     ` Alan Cox
2002-08-21 17:17                       ` Andrea Arcangeli
2002-08-21 17:34                         ` Alan Cox
2002-08-26 16:10                     ` Pavel Machek
2002-08-26 18:45                       ` Martin J. Bligh
2002-08-26 19:00                         ` Pavel Machek
2002-08-26 19:05                         ` Alan Cox
2002-08-26 20:19                           ` Martin J. Bligh
2002-08-26 19:18                         ` Richard B. Johnson
2002-08-26 19:42                           ` Pavel Machek
2002-08-26 20:23                           ` Alan Cox
2002-08-26 22:49                         ` Andrea Arcangeli

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