Re: [aclug-L] Promise EIDE Controller Driver?

[John Goerzen <jgoerzen@xxxxxxxxxxxx>]

On Tue, Nov 24, 1998 at 05:42:45PM -0600, Nate Bargmann wrote:

> boards that implements the Extended IDE, capable of something like 14

It *should* have EIDE support already.

> I was just curious if anyone knew of any support that might have been
> added in the 2.1.xxx kernel series for the Promise chips.  A bit more
> throughput than the current 1.5 MB/sec I'm probably getting now would be
> nice.

> > experiment with turning on all the special drivers like the CMD640 and stuff
> > in the IDE area and see if it improves performance any.  After you do so,
> > dmesg may be able to show if it detected those special chips.
> 
> Or, see if I can cause it to crash spectacularly!

Hehe.  Really, try this.  What tool were you using to benchmark?  You ought
to try this:

hdparm -T -t /dev/hda

The second value ("buffered disk reads") is the one that matters.

Also see the manpage for hdparm, specifically options for -d and -u.  You
can perhaps turn on DMA or unmask-interrupt flags for the drive.

John

-- 
John Goerzen   Linux, Unix consulting & programming   jgoerzen@xxxxxxxxxxxx |
Developer, Debian GNU/Linux (Free powerful OS upgrade)       www.debian.org |
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