git.neil.brown.name Git - history.git/commit

]> git.neil.brown.name Git - history.git/commit

author	Andrew Morton <akpm@zip.com.au>
	Thu, 4 Jul 2002 15:32:06 +0000 (08:32 -0700)
committer	Linus Torvalds <torvalds@home.transmeta.com>
	Thu, 4 Jul 2002 15:32:06 +0000 (08:32 -0700)
commit	5feb041e29d4f3a4b94c68ab9ada8f21caebbf48
tree	0ecc14ec500aa270a78c8dec5aa04d615bcdd4ef	tree \| snapshot
parent	63a071539a3d8842eff1145503adfbfe7f1098d3	commit \| diff

[PATCH] reduce lock contention in try_to_free_buffers()

The blockdev mapping's private_lock is fairly contended. The buffer
LRU cache fixed a lot of that, but under page replacement load,
try_to_free_buffers is still showing up.

Moving the freeing of buffer_heads outside the lock reduces contention
in there by 30%.

fs/buffer.c

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