Date: Wed, 28 Feb 2007 07:08:05 -0600 From: Eric Anderson <anderson@freebsd.org> To: Peter Losher <Peter_Losher@isc.org> Cc: freebsd-performance@freebsd.org Subject: Re: UDP performance. Message-ID: <45E57EB5.4070703@freebsd.org> In-Reply-To: <45E54619.7000503@isc.org> References: <20070224215508.GA41968@xor.obsecurity.org> <45E13410.7020505@he.iki.fi> <20070225071946.GA48242@xor.obsecurity.org> <45E14BAD.80909@he.iki.fi> <20070225084737.GA49231@xor.obsecurity.org> <errjlr$a8p$1@sea.gmane.org> <5a0a9d6f0702260936u3408f8d8rd4cde9234b2f7776@mail.gmail.com> <erv88p$rag$1@sea.gmane.org> <45E54619.7000503@isc.org>
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On 02/28/07 03:06, Peter Losher wrote: > Ivan Voras wrote: > >> I agree in general, but MySQL performance is very exposed as an advocacy >> issue - it has traditionally been the source of statements like >> "FreeBSD's threading implementation is weak/bad/broken". > > And these days ISC can't consciously recommend FreeBSD for use on > high-traffic DNS servers because UDP performance has (frankly) gone > downhill since 5.x. > > We recently put a stock Fedora Core 6 and a stock FreeBSD 6.2 on the > same HW (HP ProLiant DL320 G5 Dual Core Xeons w/ 16GB RAM) and running > BIND 9.4.0 and a well known ccTLD zone that we slammed a query stream > to. On a single threaded BIND, there was a 20% advantage to Linux, on a > multi threaded build, Linux trounced FreeBSD (39k to 89k queries/sec) > > There's also been other analysis done by Marcelo Amarai @ Registro.br > that was posted to freebsd-net back last September. > > http://lists.freebsd.org/pipermail/freebsd-net/2006-September/011748.html > > I know there have been some discussion between some of the FreeBSD folks > and my colleague Mark Andrews about improving BIND's performance on > FreeBSD. Is there anything coming down the pipeline that will help stem > this tide in 7.x? > > -Peter I wonder if the recent work done for mysql would help here or not? I'm guessing the socket work would most likely help, but that's merely a guess. BIND is an important piece of infrastructure code, and because it comes with FreeBSD base OS, maybe it should next on the performance hit list? Erichome | help
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