On Monday 11 October 2004 23:05, Steve Kratz wrote:
After the discussion last week about tuning your install of 9.x, there were a few things in there that made my system a little snappier (turning off the hardware check for speedier boot, etc), but there are most likely a bunch of
other things you can do. One such thing I found was:
The typical IDE HDD performance can be boosted by about 400% of its current
value (no, I am not joking, and >today certainly is not April 1st). The command that does this is called hdparam. A lot can be written about >how we can fine tune your hard drive performance using hdparam, but here we give you just a peek.
Before you start give the command /sbin/hdparm -tT /dev/hda to get a feel
for what your hard drive >performance is currently. Once you have done that,
give the following command:
[root@necromancer /root]# /sbin/hdparm -c1 -d1 -m16 /dev/hda /dev/hda: setting 32-bit I/O support flag to 1 setting multcount to 16 setting using_dma to 1 (on) multcount = 16 (on) I/O support = 1 (32-bit) using_dma = 1 (on)
Now give the command /sbin/hdparm -tT /dev/hda, and be prepared to be
pleasantly surprised by the jump in performance you see.
Dear Steve, About the questions that you attached to above performance tuning I have no answers but after trying it out on my desktop I have following experience: my /dev/hda does not run hdparm -tT. It just stops. With my /dev/hdb I got a slightly slower(1%) harddisk in both aspects and with my /dev/hdd the buffer cache read is 1% faster and the buffered disk read 0,4% slower. Nothing to write home about. Everything very marginal. Think that I have to start reading hdparm manpages.