Skip to content
Commit e1bb5782 authored by Nick Piggin's avatar Nick Piggin
Browse files

fs: prefetch inode data in dcache lookup



This makes single threaded git diff -1.25% +/- 0.05% elapsed time on my
2s12c24t Westmere system, and -0.86% +/- 0.05% on my 2s8c Barcelona, by
prefetching the important first cacheline of the inode in while we do the
actual name compare and other operations on the dentry.

There was no measurable slowdown in the single file stat case, or the creat
case (where negative dentries would be common).

Signed-off-by: default avatarNick Piggin <npiggin@kernel.dk>
parent 4b936885
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment