Re: [PATCH] qla2xxx: Fix a regression due to refactoring in interrupt handler code

[Anirban Chakraborty <anirban.chakraborty@xxxxxxxxxx>]

On Apr 29, 2009, at 11:04 AM, Styner, Douglas W wrote:

> Anirban Chakraborty <anirban.chakraborty@xxxxxxxxxx> writes
> > Is it possible to find out if the zio mode is turned on. If not,  
> > could you > please turn it on and let us know the numbers? You can  
> > turn it on by doing > following:
> > echo "1" > /sys/class/scsi_host/host<>/zio
> We explicit set zio to 1, zio_timer to 200 and qdepth to 48.
>
> > Also, can you let me know the oprofile setup and the tool you used?
> Oprofile collection:
> chrt -p 48 $$
> export PATH=/usr/local/bin:/sbin:$PATH
> opcontrol --init
> opcontrol --vmlinux=/usr/src/linux-`uname -r`/vmlinux
> opcontrol -e=CPU_CLK_UNHALTED:80000
> opcontrol --start-daemon
> sleep 5
> opcontrol --start
> sleep 60
> opcontrol --stop
> opcontrol --save=$1
> opcontrol --deinit
> .
> We used vtune to compare to oprofile.

Can you please try the attached patch? Also, what f/w version are you  
running with? What tool are you using to generate the load?
Thanks much,
Anirban

Attachment: perf.patch
Description: Binary data