On Tue, Sep 29, 2009 at 08:53:44PM -0400, Mark Mielke wrote: > The TCP_NODELAY seems particularly relevant to me if many small requests > are being issued in sequence as a /bin/ls is likely to do? > > The lookup-unhashed might be relevant to stat() calls issued as a part > of the /bin/ls process. Thanks Mark! Indeed this makes a significant difference when coupled with the lookup-unhashed=off option (which I thought I had in place before because I recall running into a scenario where replication wasn't working correctly and I had to set that in order to fix it, but that was in 2.0.3 from what I remember.) > There is a stat-prefetch module that I do not see documentation for. I > wish there was more comments. A quick skim of it suggests that it > *might* be designed to improve /bin/ls performance. That it's not > documented may mean it is for 2.1 or later? Interesting. I'll have to poke at the codebase this weekend again as it's been a while since I last looked at it. Mohan
