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| author | Maxim Dounin <mdounin@mdounin.ru> | 2012-03-05 12:10:09 +0000 |
|---|---|---|
| committer | Maxim Dounin <mdounin@mdounin.ru> | 2012-03-05 12:10:09 +0000 |
| commit | 9ec45d5f6fde95be4a19669d631044cfe7b52cb6 (patch) | |
| tree | 20ea7e72b5192fce5e1544f8fe9ab55cdc6cf832 /src/os/unix/ngx_posix_init.c | |
| parent | 658587e7d250381a95f32f45390fa880b00a4f5e (diff) | |
| download | nginx-9ec45d5f6fde95be4a19669d631044cfe7b52cb6.tar.gz nginx-9ec45d5f6fde95be4a19669d631044cfe7b52cb6.tar.bz2 | |
Merge of r4460: ngx_ncpu detection for most *nix platforms.
This inaccurate detection by using sysconf(_SC_NPROCESSORS_ONLN) can improve
usage of the mutex lock optimization on multicore systems.
Diffstat (limited to 'src/os/unix/ngx_posix_init.c')
| -rw-r--r-- | src/os/unix/ngx_posix_init.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/os/unix/ngx_posix_init.c b/src/os/unix/ngx_posix_init.c index 02642bd7c..eea65a903 100644 --- a/src/os/unix/ngx_posix_init.c +++ b/src/os/unix/ngx_posix_init.c @@ -47,7 +47,13 @@ ngx_os_init(ngx_log_t *log) for (n = ngx_pagesize; n >>= 1; ngx_pagesize_shift++) { /* void */ } +#if (NGX_HAVE_SC_NPROCESSORS_ONLN) if (ngx_ncpu == 0) { + ngx_ncpu = sysconf(_SC_NPROCESSORS_ONLN); + } +#endif + + if (ngx_ncpu < 1) { ngx_ncpu = 1; } |