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Re: mod_authz_svn and caching

From: Stefan Fuhrmann <stefanfuhrmann_at_alice-dsl.de>
Date: Mon, 14 Nov 2016 10:34:33 +0100

On 11.11.2016 01:01, Branko Čibej wrote:
> On 06.11.2016 13:47, Stefan Fuhrmann wrote:
>> On 05.11.2016 17:51, Hans van Kranenburg wrote:
>>> I don't see noticable performance issues at all while reparsing the
>>> little files every time right now (how big/complex is the average authz
>>> file?)
>> I remember generated authz files > 10MB. That translates
>> into 100s of ms parser overhead per e.g. GET request.
>
> That's true with the current code, but the code on the authzperf branch
> should be quite a bit faster. Still slower than SHA1 though (although,
> for this kind of cache, MD5 is good enough and faster).
Sure. I just wanted to provide a data point because
Hans was wondering how big "big" actually is.
> Just don't forget that mod_authz_svn can also pull authz files from a
> Subversion repo, not just from disk.
Yup, I think I mentioned that in my initial reply b/c
we typically get the SHA1 for free in that case.

-- Stefan^2.
Received on 2016-11-14 10:35:29 CET

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