Matthew Dalton <[EMAIL PROTECTED]> writes: > Krzys Majewski wrote: > > > > How can I optimize hard drive access? Please tell me I don't > > have to try one million random combinations of the various flags > > to hdparm. Or is the kernel doing the right thing already? > > Read this: > http://www.oreillynet.com/pub/a/linux/2000/06/29/hdparm.html >
Thanks. Looks like it basically does boil down to trying millions of random combinations, except worse because according to the manpage about half of them may corrupt your filesystems. I've done hdparm -c 3 -m 16 -d 1 and this brought me up from about 3 MB/sec to about 17 MB/sec (according to hdparm -t). I haven't really noticed the difference yet but I guess there probably is a noticeable difference. Anyway, I'm curious if there's a better way of doing these things than going through the hdparm manpage weighing an unknown probability of better performance vs. another unknown probability of a corrupted filesystem. Like a webpage that gives the specs for my drive or explains the output of hdparm -i, for example. It is really frustrating to manually specify flags to a program without having any understanding of what they really do. -chris
