Re: [Gluster-devel] webservers vs. glusterfs vs. namespace

[Sascha Ottolski]

Am Montag 21 Januar 2008 00:03:14 schrieb Sascha Ottolski:
> I'm still puzzled though, why nginx and lighttpd can't benefit from
> the io-cache, and show relatively poor performance. I suspect that
> there exist a relation to both phenomenons, but I still can't figure
> what that might be :-(

sorry for answering to myself, but I'm still wondering if anyone has got 
a hint what I could do to debug the phenomenons. I already tried to 
read that the trace xlator gives me, but wasn't able to spot the 
difference. How can I see if a cache hit or miss happened, and in the 
latter case, why (supposed that I'm certain the requested file really 
has to be in the cache)?

I would suspect that the effect has to do with the single process model 
of nginx/lighttpd, but have no idea how to track that down :-(


Thanks, Sascha