diff options
Diffstat (limited to 'ev.pod')
| -rw-r--r-- | ev.pod | 7 |
1 files changed, 4 insertions, 3 deletions
@@ -3217,9 +3217,10 @@ If defined to be C<1>, libev will try to use a direct syscall instead of calling the system-provided C<clock_gettime> function. This option exists because on GNU/Linux, C<clock_gettime> is in C<librt>, but C<librt> unconditionally pulls in C<libpthread>, slowing down single-threaded -programs needlessly. Using a direct syscall is slightly slower, because -no optimised vdso implementation can be used, but avoids the pthread -dependency. Defaults to C<1> on GNU/Linux with glibc 2.x or higher. +programs needlessly. Using a direct syscall is slightly slower (in +theory), because no optimised vdso implementation can be used, but avoids +the pthread dependency. Defaults to C<1> on GNU/Linux with glibc 2.x or +higher, as it simplifies linking (no need for C<-lrt>). =item EV_USE_NANOSLEEP |