Re: [PATCH] pack-objects: Add runtime detection of online CPU's

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Bert Wesarg wrote:
Hi,

On Feb 12, 2008 9:20 AM, Andreas Ericsson <ae@xxxxxx> 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.


Since you can do roughly the same by saying "git pack-objects --threads=2",
I'd rather not add a GNU/Linux specific hack for this.

--
Andreas Ericsson                   andreas.ericsson@xxxxxx
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231
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