Re: stray SIGALRM

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Stephen Frost <sfrost(at)snowman(dot)net>
Cc: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Andres Freund <andres(at)2ndquadrant(dot)com>, Richard Poole <richard(at)2ndquadrant(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: stray SIGALRM
Date: 2013-06-16 02:32:47
Message-ID: 6734.1371349967@sss.pgh.pa.us
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Stephen Frost <sfrost(at)snowman(dot)net> writes:
> Is there really serious overhead from using latches..?

IIRC there's at least one gettimeofday() involved in WaitLatch. There
are platforms on which that already costs more than you want to spend
for, say, CommitDelay.

regards, tom lane

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