| From: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
|---|---|
| To: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Optimising latch signals |
| Date: | 2021-02-26 11:04:55 |
| Message-ID: | CA+hUKGJjScGSty28MPFXbBxtEcVigDonupK_NAXpoFtjAkgFyQ@mail.gmail.com |
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| Thread: | |
| Lists: | pgsql-hackers |
Here's a new version with two small changes from Andres:
1. Reorder InitPostmasterChild() slightly to avoid hanging on
EXEC_BACKEND builds.
2. Revert v2's use of raise(x) instead of kill(MyProcPid, x); glibc
manages to generate 5 syscalls for raise().
I'm planning to commit this soon if there are no objections.
| Attachment | Content-Type | Size |
|---|---|---|
| v5-0001-Optimize-latches-to-send-fewer-signals.patch | text/x-patch | 2.7 KB |
| v5-0002-Use-SIGURG-rather-than-SIGUSR1-for-latches.patch | text/x-patch | 7.7 KB |
| v5-0003-Use-signalfd-for-epoll-latches.patch | text/x-patch | 13.2 KB |
| v5-0004-Use-EVFILT_SIGNAL-for-kqueue-latches.patch | text/x-patch | 5.8 KB |
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