Re: Some dbench 32 results for 2.4.8-pre8, 2.4.7-ac10, and 2.4.7

[Steven Cole <elenstev@mesatop.com>]

Linus Torvalds wrote:
>Does the numbers change if you do something like
>
>	killall -STOP kupdated
>	echo 80 64 64 256 500 6000 90 > /proc/sys/vm/bdflush
>
>to make it less eager to write stuff out? (That just stops the
>every-five-second flush, and makes the dirty balancing numbers be 80/90%
>instead of the default 30/60%)
>
>In particular, the dirty balancing worked really badly before, and was
>just fixed.  I suspect that the bdflush numbers were tuned with the
>badly-working case, and they might be a bit too aggressive for dbench
>these days.. 

Sorry Linus for the late reply, but I went to bed just before your message.
I re-ran dbench 32 with the settings above.  Here are the results:
(Same conditions as in the previous tests otherwise).  Now, off to my day job.
 
Run #1 Throughput 12.7943 MB/sec    2.4.8-pre8
Run #2 Throughput 12.667 MB/sec     2.4.8-pre8
Run #3 Throughput 12.7091 MB/sec    2.4.8-pre8
 
Run #4 Throughput 13.7765 MB/sec    2.4.7
Run #5 Throughput 13.9632 MB/sec    2.4.7
Run #6 Throughput 13.9318 MB/sec    2.4.7

Steven