From: Russ Cox <rsc@swtch.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] rio and acme scrolling
Date: Sat, 27 Mar 2004 10:38:16 -0500 [thread overview]
Message-ID: <40659FE8.8030709@swtch.com> (raw)
In-Reply-To: <78e57cf1aaa73ca03a1e3a5df2385bd8@hamnavoe.com>
>Alternatively, why not use the TSC when there is one? I note that
>this is the default for the MP architecture, but only for CPU server
>kernels -- does anyone know why?
>
>Here's a one-line fix which also seems to work on my thinkpad:
>
>term% diff /sys/src/9/pc/devarch.c devarch.c
>692a693
>
>
>> archgeneric.fastclock = tscticks;
>>
>>
The TSC is not reliable once the BIOS starts playing tricks
with CPU speeds. Try unplugging your Thinkpad and see
if your TSC keeps running at the same speed.
Russ
next prev parent reply other threads:[~2004-03-27 15:38 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-27 0:58 Micah Stetson
2004-03-27 1:51 ` Russ Cox
2004-03-27 5:07 ` Micah Stetson
2004-03-27 15:01 ` David Presotto
2004-03-27 15:07 ` Sape Mullender
2004-03-27 15:12 ` David Presotto
2004-03-27 20:58 ` Derek Fawcus
2004-03-27 15:22 ` Richard Miller
2004-03-27 15:36 ` Sape Mullender
2004-03-27 15:38 ` David Presotto
2004-03-27 15:38 ` Russ Cox [this message]
2004-03-27 17:03 ` Richard Miller
2004-03-27 16:07 ` andrey mirtchovski
2004-03-27 20:11 ` Micah Stetson
2004-03-27 20:45 ` thinkpads (was Re: [9fans] rio and acme scrolling) Axel Belinfante
2004-03-28 11:07 ` [9fans] rio and acme scrolling matt
2004-03-29 15:18 ` splite
2004-03-27 20:27 ` Micah Stetson
2004-03-27 23:57 ` Micah Stetson
2004-03-27 3:14 ` jmk
2004-03-27 10:21 ` a
2004-03-27 10:50 ` Dave Lukes
2004-03-29 13:41 ` blstuart
2004-03-29 14:33 ` Russ Cox
2004-03-29 14:36 ` matt
2004-03-29 15:57 ` Axel Belinfante
2004-03-29 17:31 ` Axel Belinfante
2004-03-29 18:42 ` [9fans] hget rog
2004-03-29 19:50 ` Russ Cox
2004-03-29 20:12 ` rog
2004-03-29 20:16 ` Russ Cox
2004-03-29 20:40 ` rog
2004-03-29 20:42 ` Russ Cox
2004-03-29 21:12 ` rog
2004-03-29 22:23 ` Charles Forsyth
2004-03-29 21:36 ` rog
2004-03-29 23:39 ` Charles Forsyth
2004-03-29 22:48 ` rog
2004-03-29 21:46 ` boyd, rounin
2004-03-29 23:01 ` rog
2004-03-29 22:17 ` boyd, rounin
2004-03-29 23:34 ` rog
2004-03-29 22:49 ` boyd, rounin
2004-03-30 10:19 ` Steve Simon
2004-03-30 0:02 ` Charles Forsyth
2004-03-29 23:22 ` rog
2004-03-29 19:58 ` David Tolpin
2004-03-29 20:08 ` David Tolpin
2004-03-29 20:18 ` rog
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