Re: multi-queue scheduler update

Gerhard Mack (gmack@innerfire.net)
Thu, 18 Jan 2001 16:43:15 -0800 (PST)

What affect does this scheduler have on 1 - 5 tasks??

Gerhard

On Thu, 18 Jan 2001, Mike Kravetz wrote:

> I just posted an updated version of the multi-queue scheduler
> for the 2.4.0 kernel. This version also contains support for
> realtime tasks. The patch can be found at:
>
> http://lse.sourceforge.net/scheduling/
>
> Here are some very preliminary numbers from sched_test_yield
> (which was previously posted to this (lse-tech) list by Bill
> Hartner). Tests were run on a system with 8 700 MHz Pentium
> III processors.
>
> microseconds/yield
> # threads 2.2.16-22 2.4 2.4-multi-queue
> ------------ --------- -------- ---------------
> 16 18.740 4.603 1.455
> 32 17.702 5.134 1.456
> 64 23.300 5.586 1.466
> 128 47.273 18.812 1.480
> 256 105.701 71.147 1.517
> 512 FRC 143.500 1.661
> 1024 FRC 196.425 6.166
> 2048 FRC FRC 23.291
> 4096 FRC FRC 47.117
>
> *FRC = failed to reach confidence level
>
> --
> Mike Kravetz mkravetz@sequent.com
> IBM Linux Technology Center
> 15450 SW Koll Parkway
> Beaverton, OR 97006-6063 (503)578-3494
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--
Gerhard Mack


gmack@innerfire.net


<>< As a computer I find your faith in technology amusing.


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