From owner-freebsd-hackers  Fri May 30 21:49:02 1997
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To: Julian Elischer <julian@FreeBSD.ORG>
cc: hackers@FreeBSD.ORG
Subject: Re: Thundering herd. 
In-reply-to: Your message of "Fri, 30 May 1997 20:22:51 PDT."
             <199705310322.UAA17301@freefall.freebsd.org> 
From: David Greenman <dg@root.com>
Reply-To: dg@root.com
Date: Fri, 30 May 1997 21:50:56 -0700
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>one 'wakeup' and a whole bunch of processes were woken up..
>can't we do better than that?
>this is in 2.2+
>
>julian
>
>p.s. yes it only wasted 10mSec (probably less without ktrace)
>but I thought we had got around this..

   The thundering herd problem was fixed by me in FreeBSD 2.2.2+ (revs 1.23 /
1.16.2.2 of /sys/kern/uipc_socket2.c).

-DG

David Greenman
Core-team/Principal Architect, The FreeBSD Project