On Thu, Sep 15, 2016 at 04:40:00PM -0400, Tom Lane wrote: > Thomas Munro <thomas.mu...@enterprisedb.com> writes: > > Very interesting. Perhaps that is why NetBSD shows a speedup with the > > kqueue patch[1] but FreeBSD doesn't. I guess that if I could get the > > kqueue patch to perform better on large FreeBSD systems, it would also > > be a solution to this problem. > > I just noticed that kqueue appears to offer a solution to this problem, > ie one of the things you can wait for is exit of another process (named > by PID, looks like). If that's portable to all kqueue platforms, then > integrating a substitute for the postmaster death pipe might push that > patch over the hump to being a net win. That sounds plausible. I could give this a try after I get back from my vacation :)
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