Re: IDE Patches bring amazing performance gain!!!

Matthias Andree (matthias.andree@stud.uni-dortmund.de)
Mon, 14 Jan 2002 15:24:06 +0100


On Mon, 14 Jan 2002, Anton Altaparmakov wrote:

> As a heads up, Andre Hedrick's (Andre sorry for the misspelling
> previously!) IDE patch improved the performance of my 7200rpm ATA100 IBM
> IDE hd from 28Mb/s to 38Mb/s as measured by hdparm -t /dev/hda, which is
> quite an improvement by anyones standards! Also hitting the disk with a lot
> of io maintains low latency and my mp3s aren't dropping out and my X
> session maintains interactivity. (-:

Which, BTW, is the margin that the German c't computer magazine also
figured against those DTLA3070xx drives.

Let's take Andre's patch for 2.4.18-pre4 already, it's been solid here.
No reason do delay it.

Also, it's high time Linux gets tagged queueing for ATA, FreeBSD has
been there for ages, just installed 4.4-RELEASE on a current box and
whoooooo hw.ata.tags=1 in /boot/loader.conf.local rocks with hw.ata.wc=0
(write cache off). I'll see if I find the time to do bonnie benchmarks
soon.
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