diff options
| author | Andrew Morton <akpm@osdl.org> | 2004-01-19 05:11:52 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@home.osdl.org> | 2004-01-19 05:11:52 -0800 |
| commit | ded29eb19869805d3ea7cfb4a6257f61f6873bab (patch) | |
| tree | 8741071cb20d451971c353ef6e6aa363e8b94fe6 /scripts/kconfig | |
| parent | 2fd5058589fd9d453a5dceefbcb4c5c5b1b7ef11 (diff) | |
[PATCH] revert lazy readahead
From: Trond Myklebust <trond.myklebust@fys.uio.no>
The following reversion is what fixes my regression. That puts the
sequential read numbers back to the 2.6.0 values of ~140MB/sec (from the
current 2.6.1 values of 14MB/second)...
We were triggering I/O of the `ahead' when we hit the last page in the
`current' window. That's bad because it gives no pipelining at all.
So go back to full pipelining.
It's not at all clear why this change made a 10x difference in NFS
throughput.
Diffstat (limited to 'scripts/kconfig')
0 files changed, 0 insertions, 0 deletions