Date: Mon, 5 Mar 2007 13:38:25 -0500 From: David Gilbert <dgilbert@dclg.ca> To: Dinesh Nair <dinesh@alphaque.com> Cc: freebsd-performance@freebsd.org Subject: Re: UDP performance. Message-ID: <17900.25505.245946.235433@canoe.dclg.ca> In-Reply-To: <20070228214200.60cc9b7a@prophet.alphaque.com> 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> <20070228214200.60cc9b7a@prophet.alphaque.com>
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>>>>> "Dinesh" == Dinesh Nair <dinesh@alphaque.com> writes: Dinesh> On Wed, 28 Feb 2007 01:06:33 -0800, Peter Losher Dinesh> <Peter_Losher@isc.org> 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. [..snipped..] >> http://lists.freebsd.org/pipermail/freebsd-net/2006-September/011748.html Dinesh> if UDP performance in 6.x and 7.x has dropped, this could even Dinesh> affect voip applications/servers such as asterisk when run on Dinesh> FreeBSD. most all use RTP for media traffic and RTP is nearly Dinesh> always UDP generating up to 50 packets per second per call per Dinesh> direction. Dinesh> 14,000+ packets per second is only about 140 calls. Well... again, BIND is not a good indicator of UDP performance. A non-trivial application can send and receive about 250k pps on moderate hardware. Dave. -- ============================================================================ |David Gilbert, Independent Contractor. | Two things can be | |Mail: dave@daveg.ca | equal if and only if they | |http://daveg.ca | are precisely opposite. | =========================================================GLO================
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