Date: Mon, 11 Dec 2000 11:08:57 -0800 From: David Greenman <dg@root.com> To: "O. Hartmann" <ohartman@ipamzlx.physik.uni-mainz.de> Cc: freebsd-stable@FreeBSD.ORG, freebsd-questions@FreeBSD.ORG Subject: Re: kernel option NBUF, what does ist means? Message-ID: <200012111908.LAA15637@implode.root.com> In-Reply-To: Your message of "Mon, 11 Dec 2000 10:49:03 %2B0100." <Pine.BSF.4.21.0012111042130.74154-100000@ipamzlx.physik.uni-mainz.de>
next in thread | previous in thread | raw e-mail | index | archive | help
>Dear Sirs. >For non kernel developer the additional options in LINT for kernel >configuration are little secrets and it is said, that some of them >could 'tweak' a standard kernel to be more powerful when getting >tweaked and the system it runs on is to be a server (I read some >articles about Linux vs. FreeBSD in a German magazine and it has been >mentioned that tweaking makes FreeBSD faster for serving purposes). > >One of the secret parameters seems to be NBUFS. it is set to 512 in >LINT, I set it to 4096 this time to see whats going on. Can anyone >offer me a hint on this parameter? Yes, you should not define it in your kernel config so that the system will properly auto-tune it to the best value based on your physical memory size. In fact most of the parameters found in LINT are that way - they are there to document that they exist, not to ecourage people to specify them. -DG David Greenman Co-founder, The FreeBSD Project - http://www.freebsd.org President, TeraSolutions, Inc. - http://www.terasolutions.com Pave the road of life with opportunities. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200012111908.LAA15637>