git bisect points to the following commit:
3971e1a917548977cff71418a7c3575ffbc9571f is first bad commit
commit 3971e1a917548977cff71418a7c3575ffbc9571f
Author: Alex Nixon <[EMAIL PROTECTED]>
Date: Tue Jul 29 22:33:03 2008 -0700
VFS: increase pseudo-filesystem block size to PAGE_SIZE
This commit:
commit ba52de123d454b57369f291348266d86f4b35070
Author: Theodore Ts'o <[EMAIL PROTECTED]>
Date: Wed Sep 27 01:50:49 2006 -0700
[PATCH] inode-diet: Eliminate i_blksize from the inode structure
caused the block size used by pseudo-filesystems to decrease from
PAGE_SIZE to 1024 leading to a doubling of the number of context switches
during a kernbench run.
Signed-off-by: Alex Nixon <[EMAIL PROTECTED]>
Cc: Andi Kleen <[EMAIL PROTECTED]>
Cc: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
Cc: Peter Zijlstra <[EMAIL PROTECTED]>
Cc: Ingo Molnar <[EMAIL PROTECTED]>
Cc: Ian Campbell <[EMAIL PROTECTED]>
Cc: "Theodore Ts'o" <[EMAIL PROTECTED]>
Cc: Alexander Viro <[EMAIL PROTECTED]>
Cc: Hugh Dickins <[EMAIL PROTECTED]>
Cc: Jens Axboe <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]> [2.6.25.x, 2.6.26.x]
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
:040000 040000 96f34c51d3eb7e47f101f5cbfa15ae2a6f39480f
900bf1fe7100529521a97c56440185686ce7453d M fs
--
dann frazier
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