Date: Mon, 25 Jul 2005 13:38:53 -0700 From: Doug Barton <dougb@FreeBSD.org> To: Attila Nagy <bra@fsn.hu> Cc: =?ISO-8859-1?Q?Dag-Erling_Sm=F8rgrav?= <des@des.no>, src-committers@FreeBSD.org, "Christian S.J. Peron" <csjp@FreeBSD.org>, cvs-all@FreeBSD.org, cvs-src@FreeBSD.org Subject: Re: cvs commit: src Makefile.inc1 src/lib/bind config.h config.mk src/lib/bind/bind config.h src/lib/bind/isc Makefile src/lib/bind/isc/isc platform.h src/usr.bin/dig Makefile src/usr.bin/host Makefile src/usr.bin/nslookup Makefile ... Message-ID: <42E54DDD.2040906@FreeBSD.org> In-Reply-To: <42E52115.9090709@fsn.hu> References: <200507251444.j6PEiBH5029191@repoman.freebsd.org> <20050725145111.GA55613@freefall.freebsd.org> <86iryyiz6q.fsf@xps.des.no> <42E52115.9090709@fsn.hu>
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Attila Nagy wrote:
> Dag-Erling Smørgrav wrote:
>
>>>> Disable thread support in BIND. It appears to reduce performance
>>>> rather
>>>> than increase it, and seems to be the cause of the memory leaks
>>>> which some
>>>> users have reported.
>>>
>>> You happen to know if this is a FreeBSD specific problem?
My sources at ISC tell me that thread performance with 9.3.x on all
platforms is worse than without threads. Enabling threads by default was a
combination of a misunderstanding on my part, and a desire to shake out some
of the issues related to both our threads, and the BIND code. Now that we
know (most of) the answers, with 6-release coming, and BIND 9.4 not coming
in time, this was the right way to go.
> BTW, we saw "huge" performance increase when switched to FreeBSD
> 5-STABLE (around 5.3, or 5.4, don't know exactly) and from bind 9.2.x to
> 9.3.1.
If you were using BIND 9.2.x previously, that is to be expected. 9.3.x has
some performance improvements over the old BIND 9 code, but as you pointed
out the 9.4.x code base will be a substantial improvement, focused primarily
on performance issues.
hth,
Doug
PS, thanks to Dag-Erling for the help on this one.
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