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
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This archive was generated by hypermail 2b29 : Wed Aug 15 2001 - 21:00:33 EST