Re: OSDL DBT-2 AS vs. Deadline 2.5.68-mm2

Jens Axboe
2003-05-07T16:35:03Z

On Wed, May 07 2003, markw@osdl.org wrote:
> I've collected some data from STP to see if it's useful or if there's
> anything else that would be useful to collect. I've got some tests
> queued up for the newer patches, but I wanted to put out what I had so
> far.
>
>
> METRICS OVER LAST 20 MINUTES:
> --------------- -------- ----- ---- -------- -----------------------------------
> Kernel Elevator NOTPM CPU% Blocks/s URL
> --------------- -------- ----- ---- -------- -----------------------------------
> 2.5.68-mm2 as 1155 94.3 8940.2 http://khack.osdl.org/stp/271356/
> 2.5.68-mm2 deadline 1255 94.9 9598.7 http://khack.osdl.org/stp/271359/
>
> FUNCTIONS SORTED BY TICKS:
> -- ------------------------- ------- ------------------------- -------
> # as 2.5.68-mm2 ticks deadline 2.5.68-mm2 ticks
> -- ------------------------- ------- ------------------------- -------
> 1 default_idle 6103428 default_idle 5359025
> 2 bounce_copy_vec 86272 bounce_copy_vec 97696
> 3 schedule 63819 schedule 70114
> 4 __make_request 30397 __blk_queue_bounce 31167
> 5 __blk_queue_bounce 26962 scsi_request_fn 26623
> 6 scsi_request_fn 24845 __make_request 25012

uhh nasty, you are spending a lot of time bouncing. How much RAM is in
the machine, and what is the scsi hba?

--
Jens Axboe