| commit | 9ec726a4120bb219530faf988198a704ec7dd1f1 | |
| author | Ævar Arnfjörð Bjarmason <avarab@gmail.com> | |
| Thu, 25 May 2017 20:05:23 +0000 (25 20:05 +0000) | ||
| committer | Junio C Hamano <gitster@pobox.com> | |
| Fri, 26 May 2017 03:59:05 +0000 (26 12:59 +0900) | ||
| tree | 5af66775f7ba959eb926fc38a00a0e8021e36b3e | treesnapshot (tar.gz zip) |
| parent | 6d423dd542f062a9696c210c33cf33e0657ab923 | commitdiff |
grep: skip pthreads overhead when using one thread
Skip the administrative overhead of using pthreads when only using one
thread. Instead take the non-threaded path which would be taken under
NO_PTHREADS.
The threading support was initially added in commit
5b594f457a ("Threaded grep", 2010-01-25) with a hardcoded compile-time
number of 8 threads. Later the number of threads was made configurable
in commit 89f09dd34e ("grep: add --threads=<num> option and
grep.threads configuration", 2015-12-15).
That change did not add any special handling for --threads=1. Now we
take a slightly faster path by skipping thread handling entirely when
1 thread is requested.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Skip the administrative overhead of using pthreads when only using one
thread. Instead take the non-threaded path which would be taken under
NO_PTHREADS.
The threading support was initially added in commit
5b594f457a ("Threaded grep", 2010-01-25) with a hardcoded compile-time
number of 8 threads. Later the number of threads was made configurable
in commit 89f09dd34e ("grep: add --threads=<num> option and
grep.threads configuration", 2015-12-15).
That change did not add any special handling for --threads=1. Now we
take a slightly faster path by skipping thread handling entirely when
1 thread is requested.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| builtin/grep.c | diffblobblamehistory |