Messages in this thread | | | Date | Tue, 9 Jan 2001 19:38:28 +0100 (CET) | From | Ingo Molnar <> | Subject | Re: [PLEASE-TESTME] Zerocopy networking patch, 2.4.0-1 |
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On Tue, 9 Jan 2001, Jens Axboe wrote:
> > > ever seen, this is why i quoted it - the talk was about block-IO > > > performance, and Stephen said that our block IO sucks. It used to suck, > > > but in 2.4, with the right patch from Jens, it doesnt suck anymore. ) > > > > Thats fine. Get me 128K-512K chunks nicely streaming into my raid controller > > and I'll be a happy man > > No problem, apply blk-13B and you'll get 512K chunks for SCSI and RAID.
i cannot agree more - Jens' patch did wonders to IO performance here. It fixes a long-standing bug in the Linux block-IO-scheduler that caused very suboptimal requests being issued to lowlevel drivers once the request queue gets full. I think this patch is a clear candidate for 2.4.x inclusion.
Ingo
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