More data:
the test file is 2GB in size.
When I do a reboot and time the reading of the entire file,
the first time the performance is great, 27MB.
The second time it sucks, 2.7MB.
I tried clearing memory by allocating and pounding on an array of 512MB
(size of main mem), that clears out memory but the performance still
sucks.
Unmounting and remounting the drive does not help.
Any ideas?
On Fri, May 04, 2001 at 01:01:03PM -0700, Larry McVoy wrote:
> I'm looking for people who know about the 3ware 6410 driver. I've got one
> of these and sometimes it goes fast and sometimes it doesn't. The bad
> case seems to happen after memory has a lot of cached blocks in it.
>
> I've tried 2.2.15, 2.4.4, and 2.4.3-ac9 and they all behave pretty similarly.
>
> I'm most interested in seeing this fixed in the 2.4 series so if there is
> someone who wants to go into a test/debug cycle with me, speak up. I'd
> really like this thing to work well.
>
> hardware config:
>
> K7 @ 750Mhz
> ASUS K7V motherboard
> 512MB
> 4x 3c905
> boot disk on the motherboard
> 4 WD 40GB 7200 drives on one 3ware 6410
> matrox g200 AGP
> --
> ---
> Larry McVoy lm at bitmover.com http://www.bitmover.com/lm
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-- --- Larry McVoy lm at bitmover.com http://www.bitmover.com/lm - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Mon May 07 2001 - 21:00:20 EST