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Date:      Sat, 1 Oct 2011 12:00:29 +0530
From:      "Jayachandran C." <jchandra@freebsd.org>
To:        Adrian Chadd <adrian@freebsd.org>
Cc:        svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org
Subject:   Re: svn commit: r225892 - head/sys/mips/mips
Message-ID:  <CA%2B7sy7BiRvTB79H9=y%2BS4jQ=%2BboW1bcDJn%2BBULMmJU9KLLVJ5A@mail.gmail.com>
In-Reply-To: <201110010556.p915uQH6003016@svn.freebsd.org>
References:  <201110010556.p915uQH6003016@svn.freebsd.org>

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Hi Adrian,

On Sat, Oct 1, 2011 at 11:26 AM, Adrian Chadd <adrian@freebsd.org> wrote:
> Author: adrian
> Date: Sat Oct =A01 05:56:25 2011
> New Revision: 225892
> URL: http://svn.freebsd.org/changeset/base/225892
>
> Log:
> =A0Disable using wait in cpu_idle() until a better solution to timer and
> =A0interrupt handling can be implemented.

Taking out the whole thing looks like an overkill here - this is
especially bad on XLR where busy wait on a hardware thread will take
away cycles from the other hardware threads.

The better workaround would be to revert to the version before
r216862, which does not have the critical_enter/cpu_idleclock.

JC.



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