On 24.08.2013 19:11, Dmitry Morozovsky wrote:
On Sat, 24 Aug 2013, Alexander Motin wrote:
MFprojects/camlock r254460:
Remove locking from taskqueue_member(). The list of threads is static
during the taskqueue life cycle, so there is no need to protect it,
taking quite congested lock several more times for each ZFS I/O.
Great, thanks!
Any chances to MFC this to 9?
I don't see any problem to do it after some time.
Ah, so IIUC, it does not depend on other changes and could be tested on stock
stable/9 right now? If so, I'd merge this to our tinderbox/poudriere builder
and test.
Yes, it is completely independent. Please, welcome. I am just not sure
whether you notice much difference unless you have really a lot of IOPS.
On my tests doing 90K IOPS over bunch of SSDs I've measured difference
of several percents.
--
Alexander Motin
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