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From: "Bert Wesarg" <bert.wesarg@googlemail.com>
To: "Andreas Ericsson" <ae@op5.se>
Cc: "Git Mailing List" <git@vger.kernel.org>,
	"Junio C Hamano" <gitster@pobox.com>,
	"Nicolas Pitre" <nico@cam.org>
Subject: Re: [PATCH] pack-objects: Add runtime detection of online CPU's
Date: Tue, 12 Feb 2008 12:18:57 +0100	[thread overview]
Message-ID: <36ca99e90802120318y5099b06cta3f8488dc758f6@mail.gmail.com> (raw)
In-Reply-To: <47B156CD.1010209@op5.se>

Hi,

On Feb 12, 2008 9:20 AM, Andreas Ericsson <ae@op5.se> wrote:
> +#ifdef THREADED_DELTA_SEARCH
> +# ifdef _SC_NPROCESSORS_ONLN
> +       long ncpus;
> +
> +       if ((ncpus = (long)sysconf(_SC_NPROCESSORS_ONLN)) > 0)
> +               return (int)ncpus;
> +# else
I can't find the right pointer, but for linux it would be more usable
to use sched_getaffinity(). Than you can do thinks like this:

$ taskset 0x3 git gc ...

and you will get 2 cpus, even 4 are online.

Bert

  parent reply	other threads:[~2008-02-12 11:19 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-12  8:20 [PATCH] pack-objects: Add runtime detection of online CPU's Andreas Ericsson
2008-02-12  8:27 ` Shawn O. Pearce
2008-02-12  8:49 ` Johannes Sixt
2008-02-12 11:18 ` Bert Wesarg [this message]
2008-02-12 12:21   ` Andreas Ericsson
2008-02-12 14:52 ` Michael Hendricks
2008-02-12 15:44 ` Brandon Casey
2008-02-23  2:11   ` Brandon Casey
2008-02-23  8:18     ` Andreas Ericsson
     [not found]   ` <1203732369-30314-1-git-send-email-casey@nrlssc.navy.mil>
2008-02-23  2:12     ` [PATCH] pack-objects: Print a message describing the number of threads for packing Brandon Casey
2008-02-26  7:49       ` Jeff King
2008-02-26  8:00         ` Junio C Hamano
2008-02-26  8:06           ` Jeff King
2008-02-26  9:19             ` Junio C Hamano
2008-02-26  9:33               ` Jeff King
2008-02-26  9:40           ` Andreas Ericsson
2008-02-26 15:53         ` Brandon Casey
2008-02-26 17:05           ` Nicolas Pitre
2008-02-26 21:25             ` Jeff King
2008-02-26 21:21           ` Jeff King
2008-02-26 22:50             ` Brandon Casey
2008-02-26 23:04               ` Jeff King

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