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From: "James Pickens" <jepicken@gmail.com>
To: devel@morey-chaisemartin.com
Cc: "git@vger.kernel.org" <git@vger.kernel.org>
Subject: Re: [RFC PATCH 0/2] Add support for multi threaded checkout
Date: Thu, 18 Dec 2008 14:42:21 -0700	[thread overview]
Message-ID: <885649360812181342u2978038fj3a11670acd9fd873@mail.gmail.com> (raw)
In-Reply-To: <494ABDC9.9060001@morey-chaisemartin.com>

On Thu, Dec 18, 2008 at 2:16 PM, Nicolas Morey-Chaisemartin
<devel@morey-chaisemartin.com> wrote:
> I guess you could do something like :
>
> #define checkout_lock()         core_threaded_checkout ?pthread_mutex_lock(&checkout_mutex) : (void) 0
> #define checkout_unlock()               core_threaded_checkout ?pthread_mutex_unlock(&checkout_mutex) : (void) 0
>
> It should be faster when you don't actually use threaded checkouts, as you won't unnecessarily lock/unlock your mutex.
>
> Have you looked at the perf from local to local? I'm just curious.


I had looked at it before but didn't record any numbers.  I just took the
following timings (2 runs each):

master             13.78    12.79
threads enabled    16.84    20.45
threads disabled   14.07    13.27

James

  reply	other threads:[~2008-12-18 21:43 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-18 20:51 [RFC PATCH 0/2] Add support for multi threaded checkout Pickens, James E
2008-12-18 20:56 ` [PATCH 1/2] " James Pickens
2008-12-18 20:56   ` [PATCH 2/2] Add core.threadedcheckout config option James Pickens
2008-12-18 21:41   ` [PATCH 1/2] Add support for multi threaded checkout Linus Torvalds
2008-12-18 23:35     ` James Pickens
2008-12-19  0:13       ` Linus Torvalds
2008-12-18 21:02 ` [RFC PATCH 0/2] " Nicolas Pitre
2008-12-18 21:13   ` James Pickens
2008-12-18 21:16 ` Nicolas Morey-Chaisemartin
2008-12-18 21:42   ` James Pickens [this message]
2008-12-19  1:04   ` James Pickens

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