Re: Problems even with 512 block size MOs

From: Giuliano Pochini (pochini@denise.shiny.it)
Date: Sat May 05 2001 - 06:20:45 EST


> recent 2.4 kernels have incredible bad performance for me when handling MO
> drives. Going back 2.2 shows better performance.

> Copying a 6.5 MByte file with cp returns nearly immediately on the
> commandline, but umount nearly takes forever. Maximum rate detected by
> xosview during umount was about 30 kByte.

I have this one:

  Vendor: FUJITSU Model: MCD3130SS Rev: 0020

and it works very well with 2.4. 2.2 kernel perform really badly because of
the famous merging problem.

> Are all my MO disks rotten? Are the MO drives broken? Are my SCSI adapters
> broken? Or is there a bug in the SCSI layer?

No probs here. I have an Adaptec SCSI card.

Bye.

-
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 - 21:00:23 EST