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From: j@uriah.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: What good are extra vnodes?
Date: 5 Oct 1996 17:05:05 GMT
Organization: Private BSD site, Dresden
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Message-ID: <5364g1$ba@uriah.heep.sax.de>
References: <52evvt$s6b@nntp1.best.com> <52tknn$3hg@news.demos.su>
Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
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Andrew A. Vasilyev <andy@snm.demos.su> wrote:
> We've tested
> "options EXTRAVNODES=30000" and got an excellent result (the
> same I've seen in Solaris :) - the only issue (except broken
> mmap() :-{) why our newsserver was behind under FreeBSD compared
> with Solaris).
Btw., the mmap() in -current is said to be no longer broken. However,
it now triggers a brokeness in the usage of mmap() in INN. (IIRC, INN
tries to change the size of the active file while it's being mmap'ed.)
> And a relative question: could anyone "CoreTeamed" explain me how
> to choose NBUF; is there any reason to increase it? Assuming one
> has a lot of I/O operations on 100-1000,000 files FS? Or dynamic
> cache does the best?
Normally, the dynamic cache should be sufficient for you. I think,
David Greenman has answered this question in the hackers list
recently. Go digging in the mailing list archives for the exact
answer.
--
cheers, J"org
joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)