Raghavendra G wrote:
However, at two points during the multi-day test run, something
strange happened. The time to completion dropped _dramatically_,
and stayed there for numerous iterations, before jumping back up again :
Mostly reads are being served from io-cache?
Perhaps ; it is worth noting that even though the operations are
consistent, the data are being generated randomly. I concede that,
statistically speaking, some of those 0's and 1's would be cached
effectively, but this shouldn't account for a sudden ~ 50% increase in
efficiency that, just as suddenly as it appears, disappears again.
While it is irresponsible to extrapolate based on three points, my
newest test run with io-cache disabled has yielded 10m30s, 10m36s, and
10m34s so far...
--
Daniel Maher <dma+gluster AT witbe DOT net>
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