Re: [PATCH] per-task-predictive-write-throttling-1

From: Anton Blanchard
Date: Fri Sep 16 2005 - 05:52:41 EST



Hi Andrea,

> BTW, I tested dbench (not after a fresh mke2fs so there might be
> minor fragmentation variations) and it doesn't seem affected by it (it's
> in the noise range) and I take it as a good thing. dbench keeps looking
> weird, if you notice the lower bandwidth of 273 completed in 12m13s
> while the higher bandwidth of 291 completed in 12m15s... perhaps it
> prints the best bandwith of the passes and it's not an average.

>From memory, if you are using a recent version of dbench it runs for a
constant amount of time. The old version ran a constant number of
operations (and so runtimes varied based on your performance).

Anton
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