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Re: [Gluster-devel] lookup caching

From: Olivier Le Cam
Subject: Re: [Gluster-devel] lookup caching
Date: Wed, 07 Apr 2010 23:21:23 +0200
User-agent: Thunderbird (Macintosh/20100228)

Olivier Le Cam wrote:
Hi -

Apologize for my insistance, but would it be possible to help on the stats caching? This seriously decreases performances with small files readings!

I am volunteer to try to deal with stats caching by myself but I would appreciate some guidance in order to know where I could interact in the code for.

Well, as far as I understand the problem is rather that folders on the path of the targeted file are not cached at all by io-cache. This is why accessing a file makes (quite a lot) network traffic and can introduce bottlenecks because each folder is stated on the servers before delivering the file, even if that file is indeed cached by io-cache.

I'm still trying to figure out how I can get this cached as well and will appreciate any pointers.

Thanks and best regards,

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