Followup to myself:

: Jukka Marin (jmarin@pyy.jmp.fi) wrote:
: : Well, just heard from an ISP that they're going to replace their freebsd
: : news server with an l***x one because the current system is not stable under
: : high loads.  With 64 MB of RAM, NetBSD seems to be doing reasonably well as
: : a news server, except that the disk IO is slow because the system uses so
: : little RAM for the disk cache.
: 
: Well... if you know what you're doing, you can always hard-code the
: buffer cache in your kernel by 
: 
: options "NBUF=8192"
: 
: to use 8192 buffer pages, which will... errr... use up 32 MB on the i386
: (isn't the pagesize 4096 bytes on them? check first.)
: 
: Note that you'll also lose up to 32 MB of data in case of a system crash.

Btw, the nswbuf variable (which controls the number of swap buffers?) is
normally initialized to 75% of nbuf, so if you manimulate NBUF, you should
know this, or set NSWBUF independently.

Regards,
	Ignatios