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From: Ivan Voras <ivoras@freebsd.org>
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Subject: Re: Disk cache tuning
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Eugene L. Vorokov wrote:
> Hello guys,
>  
> I have an amd64 server with 8 cpu cores and 16Gb of memory, with FreeBSD
> 7.2. It is used as a corporate CVS server with several huge repositories 
> (about 2Gb each), which consist of thousands of rather small files. I need

With lots of files you need to tune vfs.ufs.dirhash_maxmem very high.
Other than that it is not obvious what could be the problem - you need 
to gather more information about your system. For example, try running 
"systat -vm" in the middle of a checkout and report its output.