Re: re-aim - 2.5.69, -mm6

Andrew Morton (akpm@digeo.com)
Wed, 21 May 2003 09:25:36 -0700


Cliff White <cliffw@osdl.org> wrote:
>
> The two runs are done like this -> (4 cpu machine)
> ./reaim -s4 -x -t -i4 -f workfile.new_dbase -r3 -b -lstp.config -> for the
> maxjobs convergence
> ./reaim -s4 -q -t -i4 -f workfile.new_dbase -r3 -b -lstp.config -> for the
> 'quick' convergence
>
> stp.config has the poolsizes and path for disk directories:
> FILESIZE 80k
> POOLSIZE 1024k
> DISKDIR /mnt/disk1
> DISKDIR /mnt/disk2
> DISKDIR /mnt/disk3
> DISKDIR /mnt/disk4

Well I spent a few hours running this on the quad xeon (aic7xxx).

There were no hangs, and there was no appreciable performance difference
between 2.5.69, 2.6.69-mm7++ with AS and 2.5.69-mm7++ with deadline.

Please confirm that the hang only happened with the anticipatory scheduler?

It could require a particular device driver to reproduce. Please see if
you can generate that sysrq-T output. Also if you can try a different
device driver sometime that would be interesting. There seem to be several
alternate ISP drivers around - the feral driver perhaps, and the new one in
the linux-scsi tree.

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