On Tue, 12 Oct 2010 14:43:23 -0400, Chris Mason wrote:
On Tue, Oct 12, 2010 at 05:43:14PM +0800, Miao Xie wrote:
This patch reduces the CPU time spent in the extent buffer search by using the
radix tree instead of the rbtree and using the rcu lock instead of the spin
lock.
I did a quick test by the benchmark tool[1] and found the patch improve the
file creation/deletion performance problem that I have reported[2].
Thanks, this is much smaller than I expected. I'll hammer on it here.
By the way, I found we had 16T limit on 32-bits machines, because the page cache
of 32-bits machines can only manage 16T data, and the btrfs metadata is cached
in the page cache.
Regards
Miao
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