Subject: from cheetah to snail
To: None <email@example.com>
From: Patrick Welche <firstname.lastname@example.org>
Date: 02/04/2004 12:54:23
I just upgraded the kernel of an i386 box from
NetBSD 1.6ZH (QUARTZ) #380: Tue Jan 20 11:50:29 GMT 2004
NetBSD 1.6ZI (QUARTZ) #382: Tue Feb 3 16:49:50 GMT 2004
and it is now so slow as to be practically unusable (eg overnight small
database dump took 1h10m instead of 10m, I can watch the delay in the
characters appearing - it is as if I were on a slow modem rather than
on a keyboard plugged in the back).
It has 2Gb memory, the idea being that the database can essentially sit
in the file cache.
I tried doubling bufmem_hiwater to
vm.bufmem_hiwater = 643891200
and increasing filemax to
vm.filemax = 80
but that didn't achieve much.
It already had
kern.maxvnodes = 262144
Memory: 1115M Act, 558M Inact, 3708K Wired, 17M Exec, 1543M File, 1172K Free
Swap: 397M Total, 397M Free
10 root -18 0 0K 315M pgdaemon 8:35 4.98% 4.98% [pagedaemon]
is in at number 3 in top and
11 root 18 0 0K 315M syncer 20:55 0.88% 0.88% [ioflush]
is not far behind.
The filesystems are mounted with softdeps, and the kernel does not have
Any options other than returning to netbsd.old?