Re: How git affects kernel.org performance

On Tue, 9 Jan 2007, Fengguang Wu wrote:

quoted

The fastest and probably most important thing to add is some readahead
smarts to directories --- both to the htree and non-htree cases.  If

Here's is a quick hack to practice the directory readahead idea.
Comments are welcome, it's a freshman's work :)

Well, I'd probably have done it differently, but more important is whether 
this actually makes a difference performance-wise. Have you benchmarked it 
at all?

Doing an

	echo 3 > /proc/sys/vm/drop_caches

is your friend for testing things like this, to force cold-cache 
behaviour..

		Linus