From: Christoph Hellwig <hch@infradead.org>
Date: Sun, 07 Jan 2007 10:28:53 GMT
Subject: Re: How git affects kernel.org performance
Message-ID: <20070107102853.GB26849@infradead.org>
In-Reply-To: <20070107090336.GA7741@1wt.eu>

On Sun, Jan 07, 2007 at 10:03:36AM +0100, Willy Tarreau wrote:
> The problem is that I have no sufficient FS knowledge to argument why
> it helps here. It was a desperate attempt to fix the problem for us
> and it definitely worked well.

XFS does rather efficient btree directories, and it does sophisticated
readahead for directories.  I suspect that's what is helping you there.