On Mon, 22 Sep 2008 20:35:23 -0400 "Theodore Ts'o" <tytso@xxxxxxx> wrote: > > With modern hard drives, reading 64k takes roughly the same time as > reading a 4k block. So request adjacent inode table blocks to reduce > the time it takes when iterating over directories (especially when doing > this in htree sort order) in a cold cache case. With this patch, the > time it takes to run "git status" on a kernel tree after flushing the > caches via "echo 3 > /proc/sys/vm/drop_caches", is reduced by 21%. > > Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx> Acked-by: Alan Cox <alan@xxxxxxxxxx> I'm actually suprised that 16 is the magic tuning number you've used and a bigger one isn't even more of a win Alan -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
