Re: hdparm, hard drive howto, tutorial

[Alvin Oga <aoga@ns.Linux-Consulting.com>]

On Sat, 13 Sep 2003, Antonio Rodr wrote:

> 
> > and if you really wanna tune your hd, use the proper partition order
> > sizes and locations on the disk platter

...

> What do you exactly mean with "proper partition order sizes and locations on the disk platter"? Could you please be more concrete?
> Thanks.

http://www.Linux-1U.net/Disks
http://www.Linux-1U.net/Tuning/#DiskLayout

data is physically stored in "cylinders" on a disk .... each time the disk
head has to move, it takes lots of time .. tens of miliseconds

with less head movement, your system will appear to be lot faster
	- use a 1GB compact flash and see how much faster it runs
	compared to a regular hd ... doing lots of disk i/o

	while < true > {
	  time "ls -laR / | md5 "

 	  # now flush the disk cache clean, and move the head to track0
	      so it doesnt read "disk" from memory
	  #
	} # fun stuff

c ya
alvin