Alexander Staubo wrote:
No, fsync=on. The tps values are similarly unstable with fsync=off, though -- I'm seeing bursts of high tps values followed by low-tps valleys, a kind of staccato flow indicative of a write caching being filled up and flushed.
Databases with checkpointing typically exhibit this cyclical throughput syndrome. (put another way : this is to be expected and you are correct that it indicates buffered
data being flushed to disk periodically).
