Date: Sun, 06 Apr 2003 21:53:54 +0200 From: Mattias Pantzare <pantzer@ludd.luth.se> To: Support <support@netmint.com> Cc: freebsd-isp@freebsd.org Subject: Re: load testing and tuning a 4GB RAM server Message-ID: <3E9085D2.4020403@ludd.luth.se> In-Reply-To: <20030406145845.R18790-100000@netmint.com>
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Support wrote: > [..clip..] > > >>However, possibly with a degree of self-contradictory advice :-), I'd >>set maxusers to a specific value like 256 or so. > > > I will set it to 384 that the system already auto-defaults it to, unless > someone can suggest why I should leave it at 0. Perhaps you guys should > make it very clear in the manuals or LINT that autotuning only happens at > boot time because there possibly is a perception that it auto-tunes on a > running system. Even after I read all threads regarding this that I can > find, I am still not sure what sysctl vars will be able to auto-tune at > RUNTIME while the load creeps up. I am sure the important ones like > nmbclusters and n/mbuf variables can't. So which can? The sysctl vars that you can set will not auto-tune, that would be bad as that would destroy you setting. If a resource is auto-tuing then you set the limit with the sysctl. The autotuing of maxusers is based on your amount of RAM, that will not change while the system is running.home | help
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