Re: [patch] lowlatency patch for 2.4, lowlatency-2.4.0-test6-B5

From: yodaiken@fsmlabs.com
Date: Fri Aug 04 2000 - 09:38:43 EST


On Fri, Aug 04, 2000 at 03:43:15PM +0200, Ingo Molnar wrote:
> *no*. There are places in the kernel that do work for millisecs while
> holding a spinlock. This causes millisec latencies even if we had a

The interesting question here is "why"? The only example ever discussed
here was copying data on big reads/writes and this seems like a classic
case of where the algorithm needs to be fixed -- if you have a millisecond
copy then you almost certainly would benefit from kiobufs or something smart.

-- 
---------------------------------------------------------
Victor Yodaiken 
Finite State Machine Labs: The RTLinux Company.
 www.fsmlabs.com  www.rtlinux.com

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