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| author | Thomas Munro <tmunro@postgresql.org> | 2021-03-01 12:06:09 +1300 |
|---|---|---|
| committer | Thomas Munro <tmunro@postgresql.org> | 2021-03-01 14:12:02 +1300 |
| commit | 6a2a70a02018d6362f9841cc2f499cc45405e86b (patch) | |
| tree | 28a7760914dd066dbd2310cc29e893ac7c6b13a0 /src/backend/utils/init/miscinit.c | |
| parent | 83709a0d5a46559db016c50ded1a95fd3b0d3be6 (diff) | |
| download | postgresql-6a2a70a02018d6362f9841cc2f499cc45405e86b.tar.gz postgresql-6a2a70a02018d6362f9841cc2f499cc45405e86b.zip | |
Use signalfd(2) for epoll latches.
Cut down on system calls and other overheads by reading from a signalfd
instead of using a signal handler and self-pipe. Affects Linux sytems,
and possibly others including illumos that implement the Linux epoll and
signalfd interfaces.
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA+hUKGJjxPDpzBE0a3hyUywBvaZuC89yx3jK9RFZgfv_KHU7gg@mail.gmail.com
Diffstat (limited to 'src/backend/utils/init/miscinit.c')
| -rw-r--r-- | src/backend/utils/init/miscinit.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/backend/utils/init/miscinit.c b/src/backend/utils/init/miscinit.c index 734c66d4e84..e6550f99eec 100644 --- a/src/backend/utils/init/miscinit.c +++ b/src/backend/utils/init/miscinit.c @@ -118,6 +118,11 @@ InitPostmasterChild(void) /* We don't want the postmaster's proc_exit() handlers */ on_exit_reset(); + /* In EXEC_BACKEND case we will not have inherited BlockSig etc values */ +#ifdef EXEC_BACKEND + pqinitmask(); +#endif + /* Initialize process-local latch support */ InitializeLatchSupport(); MyLatch = &LocalLatchData; @@ -135,11 +140,6 @@ InitPostmasterChild(void) elog(FATAL, "setsid() failed: %m"); #endif - /* In EXEC_BACKEND case we will not have inherited BlockSig etc values */ -#ifdef EXEC_BACKEND - pqinitmask(); -#endif - /* * Every postmaster child process is expected to respond promptly to * SIGQUIT at all times. Therefore we centrally remove SIGQUIT from |