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| author | Maxim Dounin <mdounin@mdounin.ru> | 2021-10-21 18:38:38 +0300 |
|---|---|---|
| committer | Maxim Dounin <mdounin@mdounin.ru> | 2021-10-21 18:38:38 +0300 |
| commit | f29d7ade54f8baa117f7c40fec58683952c46cdb (patch) | |
| tree | 77316ee5cb8867e642d45fc835612c1d828ed275 | |
| parent | 1fecec0cbf1554c0473d5cca0fb55f8dc006e4ba (diff) | |
| download | nginx-f29d7ade54f8baa117f7c40fec58683952c46cdb.tar.gz | |
Removed CLOCK_MONOTONIC_COARSE support.
While clock_gettime(CLOCK_MONOTONIC_COARSE) is faster than
clock_gettime(CLOCK_MONOTONIC), the latter is fast enough on Linux for
practical usage, and the difference is negligible compared to other costs
at each event loop iteration. On the other hand, CLOCK_MONOTONIC_COARSE
causes various issues with typical CONFIG_HZ=250, notably very inaccurate
limit_rate handling in some edge cases (ticket #1678) and negative difference
between $request_time and $upstream_response_time (ticket #1965).
| -rw-r--r-- | src/core/ngx_times.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/src/core/ngx_times.c b/src/core/ngx_times.c index 7964b008f..16788c98c 100644 --- a/src/core/ngx_times.c +++ b/src/core/ngx_times.c @@ -200,10 +200,6 @@ ngx_monotonic_time(time_t sec, ngx_uint_t msec) #if defined(CLOCK_MONOTONIC_FAST) clock_gettime(CLOCK_MONOTONIC_FAST, &ts); - -#elif defined(CLOCK_MONOTONIC_COARSE) - clock_gettime(CLOCK_MONOTONIC_COARSE, &ts); - #else clock_gettime(CLOCK_MONOTONIC, &ts); #endif |