Date: Mon, 11 Oct 1999 19:14:38 +0100 (WEST) From: "TFC WLAN 97/98 - IST - ext.2269 (8418269)" <wlan@feldspato.ist.utl.pt> To: freebsd-questions@FreeBSD.ORG Cc: pagaime@rccn.net Subject: Slow FreeBSD 3.2 Message-ID: <Pine.LNX.4.05.9910111912040.4978-100000@feldspato.ist.utl.pt>
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Hello all
We have a Dell 4300 with 2 9GB SCSI disks, 512MB and
a Pentium II 450 MHz CPU.
But, when ever 'top' reports a process in 'newbuf', 'getblk'
or 'biowr', the system becomes very slow, sometimes for a
few seconds. We can't even do a 'ls' properly...
Unfortunately the system ends up on that state whenever
'pine' or 'popper' runs on a large mailbox. Of course
we can't convince people to use 'maildir'.
Since the machine is almost idle - CPU and memory - why does
this happen ?
Is it a driver/disk problem ?
What do those states reported by top ('newbuf', 'getblk', 'biowr')
mean ?
Is there some kernel optimization we can do ? Kernel upgrade ?
Thanks,
Joao
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