2.2.0-pre6 VM slow?

Christopher W. Curtis (ccurtis@aet-usa.com)
Tue, 12 Jan 1999 11:11:09 -0500


Hello,

I'm not subscribed to the list, so please Cc: me any replies.

Am I alone, or does the virtual memory system of the 2.2-pre kernel
seems *really* slow? I have an AMD K6 running at 300MHz with 64MB RAM.
I'm currently using 44MB swap on a 6.4GB UDMA WD hard drive, running off
the onboard controller of my Epox motherboard with the VIA MVP3
chipset. Switching to an application under X-Windows takes considerable
time (3.3.2.3 from debian-frozen) under WindowMaker. For example, I'm
running NetBeans developer and Netscape on two different workspaces
under WindowMaker (0.20.3; XF86_SVGA server for a #9 Reality 334). I
had Netscape open on workspace 2 and the I switched to workspace and
opened NetBeans. I then switched to my second workspace and waited. It
took almost 3 seconds for the mouse to move at all; 10 seconds for it to
become function (not jitter when moved); 13 seconds for Netscape to
completely refresh itself, and then another 2-3 seconds for this mail
window to accept and display my input. I don't know if this is better
or worse than the previous kernel, but it doesn't "feel" right. I've
noticed my system sitting at high load (1.8) for long periods of time,
with almost no CPU being used by userspace programs. I assume this is
due to swapping.

The harddrive is the only drive on IDE0 (master) and I have a single
CDROM setup on IDE1, so the hard drive should be running at full
PIO mode 4 / UDMA / ?? The system under this situation is very
sluggish, and I can only think it's the VM system. It there something
else that I should be looking at?

Thanks for any help/ideas,
Christopher

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