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Re: Improve spinlock performance by moving work to one core

From Waiman Long <waiman.long@hpe.com>
Newsgroups linux.kernel
Subject Re: Improve spinlock performance by moving work to one core
Date 2015-11-30 22:00 +0100
Message-ID <qADIf-8wf-23@gated-at.bofh.it> (permalink)
References (4 earlier) <qxVV0-8qv-7@gated-at.bofh.it> <qyNC2-1Wc-15@gated-at.bofh.it> <qyVJf-7nu-3@gated-at.bofh.it> <qz0IW-35e-15@gated-at.bofh.it> <qApYC-8mg-11@gated-at.bofh.it>
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On 11/30/2015 01:17 AM, Ling Ma wrote:
> Any comments, the patch is acceptable ?
>
> Thanks
> Ling
>
>
Ling,

The core idea of your current patch hasn't changed from your previous
patch.

My comment is that you should not attempt to sell it as a replacement
of the current spinlock mechanism. I just don't see that will happen
given the change in API semantics. Also, I think there are probably
cases that your patch cannot be applied. So treat it as a separate
synchronization mechanism that can be useful in some scenarios.

Cheers,
Longman

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Thread

Re: Improve spinlock performance by moving work to one core Ling Ma <ling.ma.program@gmail.com> - 2015-11-23 10:50 +0100
  Re: Improve spinlock performance by moving work to one core Ling Ma <ling.ma.program@gmail.com> - 2015-11-25 03:00 +0100
  Re: Improve spinlock performance by moving work to one core Waiman Long <waiman.long@hpe.com> - 2015-11-25 20:10 +0100
    Re: Improve spinlock performance by moving work to one core Ling Ma <ling.ma.program@gmail.com> - 2015-11-26 04:50 +0100
      Re: Improve spinlock performance by moving work to one core Ling Ma <ling.ma.program@gmail.com> - 2015-11-26 10:10 +0100
        Re: Improve spinlock performance by moving work to one core Ling Ma <ling.ma.program@gmail.com> - 2015-11-30 07:20 +0100
          Re: Improve spinlock performance by moving work to one core Waiman Long <waiman.long@hpe.com> - 2015-11-30 22:00 +0100
            Re: Improve spinlock performance by moving work to one core Ling Ma <ling.ma.program@gmail.com> - 2015-12-06 14:10 +0100

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