Date: Tue, 29 Jan 2002 07:47:33 -0500 From: "Troy Settle" <troy@psknet.com> To: <freebsd-isp@FreeBSD.ORG> Subject: RE: Tuning a system... Message-ID: <000301c1a8c3$1effe360$fafbab3f@psknet.com> In-Reply-To: <200201291042.g0TAgIs03880@Magelan.Leidinger.net>
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Thanks to all for your input. It'll probably take me a month to get my machines updated though. -- Troy Settle Pulaski Networks 540.994.4254 - 866.477.5638 http://www.psknet.com > -----Original Message----- > From: owner-freebsd-isp@FreeBSD.ORG > [mailto:owner-freebsd-isp@FreeBSD.ORG] On Behalf Of Alexander > Leidinger > Sent: Tuesday, January 29, 2002 5:42 AM > To: forrestc@imach.com > Cc: absinthe@pobox.com; troy@psknet.com; freebsd-isp@FreeBSD.ORG > Subject: Re: Tuning a system... > > > On 29 Jan, Forrest W. Christian wrote: > > >> I'm of the school of thought that says you're likely to > spend a lot more time > >> making kernel adjustments, compiling and rebooting than > you ever would trying > >> to reason with a dynamic kernel or deal with memory > shortages, especially > >> with as cheap as RAM is now. > > > > I'll add my $0.02: > > > > About the only thing which I have run across which I > regularly run into > > problems with are TCP/IP buffer parameters such as mbufs. > If I tune my > > kernel so I can get insane flows across the internet > (DS-3/OC-3 level > > links), I will quickly run out of buffers if I get more > than a couple of > > flows going. > > > > I would *love* to see these dynamically sized - the buffer > space, not > > necessarily the tcp/ip tuning parameters. > > -current (and perhaps 4.5) do something like this already at boot time > depending on the amount of memory (you have to set maxusers > to 0 to get > this behavior). It's not dynamic at run time, it's only > dynamic at boot > time. And if it doesn't allocate enough for you, you can override it > with your own settings. > > Bye, > Alexander. > > -- > Loose bits sink chips. > http://www.Leidinger.net Alexander @ Leidinger.net GPG fingerprint = C518 BC70 E67F 143F BE91 3365 79E2 9C60 B006 3FE7 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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