Horton

Re: spinlocks on HP-UX

Pavan Deolasee <pavan.deolasee@gmail.com>

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From: Pavan Deolasee <pavan.deolasee@gmail.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Tatsuo Ishii <ishii@postgresql.org>, pgsql-hackers@postgresql.org
Date: 2011-10-18T06:20:31Z
Lists: pgsql-hackers

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  1. Typo fixes.

On Tue, Oct 18, 2011 at 10:04 AM, Robert Haas <robertmhaas@gmail.com> wrote:

> Hmm, so you added the non-locked test in TAS()?  Did you try adding it
> just to TAS_SPIN()?  On Itanium, I found that it was slightly better
> to do it only in TAS_SPIN() - i.e. in the contended case.
>

Would it be a good change for S_LOCK() to use TAS_SPIN()  as well ?

Thanks,
Pavan

-- 
Pavan Deolasee
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