Date: Tue, 04 May 2004 14:14:20 -0600 From: Scott Long <scottl@freebsd.org> To: Kris Kennaway <kris@obsecurity.org> Cc: Gerrit Nagelhout <gnagelhout@sandvine.com> Subject: Re: 4.7 vs 5.2.1 SMP/UP bridging performance Message-ID: <4097F99C.4070504@freebsd.org> In-Reply-To: <20040504200657.GA22430@xor.obsecurity.org> References: <FE045D4D9F7AED4CBFF1B3B813C85337021AB372@mail.sandvine.com> <20040504200657.GA22430@xor.obsecurity.org>
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Kris Kennaway wrote: > On Tue, May 04, 2004 at 03:55:32PM -0400, Gerrit Nagelhout wrote: > > >>I would like to move to CURRENT for new hardware support, and the >>ability to properly use multi-threading in user-space, but can't do >>this until the performance bottlenecks are solved. I realize that >>5.x is still a work in progress and hasn't been tuned as well as 4.7 >>yet, but are there any plans for optimizations in this area? Does >>anyone have any suggestions on what else I can try? > > > Try rwatson's netperf patches: > > http://www.watson.org/~robert/freebsd/netperf/ > > There is at least one outstanding panic condition known, but more > testing will be a great help. > > Kris > > P.S. You didn't mention the status of WITNESS, but I'm assuming you > read the docs and disabled it since it's a huge performance killer. WITNESS and INVARIANTS are turned off for the 5.2.1 release bits. However, the debug.mpsafenet sysctl is also turned off. Turning this on might give a significant performance boost for bridging. Scott
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