Subject: Re: Simple thought...
To: Wolfgang Rupprecht <wolfgang+gnus20020607T164810@wsrcc.com>
From: Jaromir Dolecek <firstname.lastname@example.org>
Date: 06/08/2002 18:49:05
Is this with 1.5? Note that bufpages is only used for metadata
with UBC (which is in 1.6+). What is your kern.maxvnodes setting?
It should be high enough to support caching of significant
enough number of files.
The formula I've got from Bill the other day was:
approx-number-you-want-to-use-for-buffer-case / approx-file-size
i.e. with 256 MB used for buffer cache and 4KB approx file size,
this gets kern.maxvnodes (see sysctl(8)) to optimum value around 65536.
Wolfgang Rupprecht wrote:
> email@example.com (Andrew Gillham) writes:
> > Yes. Try:
> > gdb --write /netbsd
> > set bufpages=80000
> > quit
> > reboot
> Ok. That worked a bit better and grabbed quite a bit of memory.
> total memory = 767 MB
> avail memory = 433 MB
> using 6144 buffers containing 312 MB of memory
> A "du /usr/pkgsrc" still doesn't run that blindingly fast the second
> time around though. There is still plenty of disk activity. I am
> guessing that this is due to the disk not being mounted "noatime".
> Wolfgang Rupprecht <firstname.lastname@example.org>
> Coming soon: GPS mapping tools for Open Systems. http://www.gnomad-mapping.com/
Jaromir Dolecek <jdolecek@NetBSD.org> http://www.NetBSD.org/Ports/i386/ps2.html
-=- We should be mindful of the potential goal, but as the tantric -=-
-=- Buddhist masters say, ``You may notice during meditation that you -=-
-=- sometimes levitate or glow. Do not let this distract you.'' -=-