Gary L. Hennigan writes: > > <[EMAIL PROTECTED]> writes: > | Martin Oldfield writes: > | > > | > > | > I'd like to improve the IDE performance of my system. The IDE > | > controllers are on a newish Intel motherboard; /proc/pci says: > | > > | > IDE interface: Intel 82371AB 430TX PIIX4 (rev 1). > | > > | > The drives are older: > | > > | > Model=QUANTUM FIREBALL ST6.4A, FwRev=A0F.0800, SerialNo=15672304 > | > Model=QUANTUM FIREBALL_TM3840A, FwRev=A6B.1T00, SerialNo=39662361 > | > Model=ST32140A, FwRev=08.08.01, SerialNo=JBF24417 > | > Model=ST32140A, FwRev=08.08.01, SerialNo=JB770285 > | > > | > Can anyone suggest more aggressive (yet safe!) options for hdparm to > | > make things run more quickly; alternatively is there a repository of > | > known good settings. > | > | Here's a script I added to /etc/init.d (with link in /etc/rc2.d) for better > | performance. Use the '-i' option alone to find out the number for the '-m' > | option. (man page explains all) This script is the last thing executed > during > | bootup. Enjoy! Oh BTW, my transfers jump from 5 Mb/sec to 35Mb/sec. > > You're saying you get 35 mega Bytes per second? That seems highly > unlikely! > > I'm not disputing the fact that your script might improve performance, > haven't tried it, but there's not a hard drive in existence, excluding > specialty solid state drives and RAIDs, that can sustain 35MB/s (I'm > assuming by Mb you meant Mega Bytes and not Mega bits, which is what > Mb is generally used for?). Shoot, I don't even think the UDMA bus can > acheive that? I believe it's theoretical maximum is 33MB/s. Whatever > you're using to get this performance number isn't measuring your disk > throughput but your cache performance. > > Of course, if you meant what you wrote and get 35 mega bits/sec I > could believe that, although if the drive was getting 5Mb/s to start > with it's time for a new drive! > > Try using > > hdparam -t -T /dev/<whatever> > > for a little better estimate.
Thanks for the tip. You were right, the 35 Mb/sec were Megabytes but in the disk cache. Your suggestion shows an 8 Mb/sec disk read when ran. 8Mb/sec is probably more realistic! -- -= Sent by Debian 1.3 Linux =- Thomas Kocourek KD4CIK @[EMAIL PROTECTED]@westgac3.dragon.com Remove @_@ for correct Email address --... ...-- ... -.. . -.- -.. ....- -.-. .. -.- -- Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] < /dev/null
