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Date: Wed, 11 Jun 2014 15:12:34 -0700
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Subject: Re: dedicate the most available cpu cores to my application
From: hiren panchasara <hiren.panchasara@gmail.com>
To: Nick Sivo <nick@ycombinator.com>
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Cc: Mahdi Dashtbozorgi <mdasht@gmail.com>, freebsd-stable@freebsd.org
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On Wed, Jun 11, 2014 at 2:15 PM, hiren panchasara
<hiren.panchasara@gmail.com> wrote:
> On Wed, Jun 11, 2014 at 1:16 PM, Nick Sivo <nick@ycombinator.com> wrote:
>> I'd actually like to do the opposite of this, and have run into the
>> same problem.
>>
>> cpuset -s 1 -l 0
>> cpuset: setaffinity: Resource deadlock avoided
>
> I see the same problem on -CURRENT.
>
> fwiw, a fix is being discussed and worked on:
> http://lists.freebsd.org/pipermail/freebsd-hackers/2014-June/045292.html
>
> I am going to try and apply the proposed patch
> https://phabric.freebsd.org/D141 to see how it behaves.

Unified diffs from the review above:
https://phabric.freebsd.org/file/data/zixvlbugtluzxbmfj72e/PHID-FILE-uxhuddcmyqfuscwvnxsv/D141.diff

With this patch, sudo cpuset -s 1 -l 0-4 - worked.
And I think it's doing the right thing by looking at top -PSH.

cheers,
Hiren