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Re: Linux kernel question, pre 2.6.23 vs later kernel versions
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From: |
Ole Tange |
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Subject: |
Re: Linux kernel question, pre 2.6.23 vs later kernel versions |
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Date: |
Sun, 21 Oct 2018 20:52:31 +0200 |
On Wed, Oct 17, 2018 at 10:25 PM Groom, George <George_Groom@comcast.com> wrote:
> I understand that kernel process scheduling changed at 2.6.23… run queue
> based to Completely Fair Scheduling (CFS). Has anyone experienced longer
> parallel script execute times on systems with later versions of the Linux
> kernel?
>
> I’ve noticed longer execute times where I’m generating several thousands of
> processes on later kernel machines. CFS seems to throttle my processes
> within a few seconds and then control execution until script completion. Are
> there known workarounds for this behavior? Depending on application needs
> the older method might be preferable?
I cannot reproduce this. Make an MCVE.
/Ole