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grep: allow threading even on a single-core machine

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Earlier we disabled threading when online_cpus() said "1", but on a
filesystem with long latency (or in a cold cache situation), using
multiple threads to drive I/O in parallel would improve performance
even on a single-core machines.

Signed-off-by: Victor Leschuk <vleschuk@accesssoftek.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Victor Leschuk 2015-12-15 18:31:39 +03:00 committed by Junio C Hamano
parent 37023ba381
commit b6b468b2bf
1 changed files with 1 additions and 1 deletions
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2
builtin/grep.c
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@ -832,7 +832,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
}
#ifndef NO_PTHREADS
if (list.nr || cached || online_cpus() == 1)
if (list.nr || cached)
use_threads = 0;
#else
use_threads = 0;