On 04/10/09 20:15, Toby Thain wrote:
On 10-Apr-09, at 5:05 PM, Mark J Musante wrote:
On Fri, 10 Apr 2009, Patrick Skerrett wrote:
degradation) when these write bursts come in, and if I could buffer
them even for 60 seconds, it would make everything much smoother.
ZFS already batches up writes into a transaction group, which
currently happens every 30 seconds.
Isn't that 5 seconds?
It used to be, and it may still be for what you are running.
However, Mark is right, it is now 30 seconds. In fact 30s is
the maximum. The actual time will depend on load. If the pool
is heavily used then the txg's fire more frequently.
Neil.
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