Slow disk performance with Seagate SATA disk and Sil3112 controller

[RichardOs]

Binary package hint: linux-source-2.6.15

The problem is described here:
http://ubuntuforums.org/showthread.php?t=81056

Althouh the thread is several months old, and I've switched to Dapper, the performance is the same.

There seems to be a proposed fix for the problem described here:
http://home-tj.org/wiki/index.php/Sil_m15w

[Phil Bull (philbull)]

Thanks for the report. Do you still have this issue?

[RichardOs (richard-oszlanczi)]

My Seagate hard drive died in december last year (mechanical problem I think, the computer didn't boot with the drive connected, and it made mechanical grinding sounds). The problem was not fixed then either (I was using Kubuntu Edgy).

I had it replaced with with a Maxtor DiamondMax10 (also 200Gb), which works normally with Sil3112 (I get 30-40 MB/s transfer speeds).

[Andrew Fenn (andrewfenn)]

I'm thinking this has been fixed? I'm using Gutsy and a Seagate SATA disk and I am getting the following.

sudo hdparm -tT /dev/sda
/dev/sda:
 Timing cached reads: 1770 MB in 2.00 seconds = 885.08 MB/sec
 Timing buffered disk reads: 172 MB in 3.02 seconds = 56.88 MB/sec

lsmod | grep sata
sata_nv 20612 3
libata 125168 2 ata_generic,sata_nv

I am not using a Sil3112 controller though so I am guessing that might be where your problem is?

Could you update this bug report if you're still having problems or close it, thanks.

[RichardOs (richard-oszlanczi)]

Hi.

As I said earlier, I don't have the Seagate disk anymore. So if no one seems to have this problem besides me, I think the bug can be closed.

Thanks,
Richard

[Andrew Lowe (bugzrevenge)]

Does not look like it is able to be reproduced by anyone other then the original submitter, who is, as mentioned, not able to reproduce any more due to a hardware change. I believe this bug is not valid any longer.