[OpenAFS] Re: Improving AFS performance for Joomla and other web sites

[Shane Warner]

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If he is using windows clients then my advice is probably moot given the new
development. I have a feeling he is using linux/*nix based apache servers to
access /afs though?

On Fri, Sep 10, 2010 at 12:42 AM, Simon Wilkinson <sxw@inf.ed.ac.uk> wrote:

>
> On 9 Sep 2010, at 23:44, Shane Warner wrote:
>
> > Maybe using -memcache would give you a nice performance increase.
>
> With 1.5.x, the performance difference between disk cache and memcache is
> significantly smaller, particularly in use cases which see a large
> percentage of cache hits (such as this one).
>
> I made significant changes to the way we use the Linux page cache and
> interact with the backing filesystem, so that our performance when serving
> files which are held in the local disk cache approaches that of the cache
> filesystem itself, rather than being several orders of magnitude slower.
>
> Cheers,
>
> Simon.
>
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<div>If he is using windows clients then my advice is probably moot given t=
he new development. I have a feeling he is using linux/*nix based apache se=
rvers to access /afs though?<br><div><div><br><div class=3D"gmail_quote">On=
 Fri, Sep 10, 2010 at 12:42 AM, Simon Wilkinson <span dir=3D"ltr">&lt;<a hr=
ef=3D"mailto:sxw@inf.ed.ac.uk">sxw@inf.ed.ac.uk</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex;"><br>
On 9 Sep 2010, at 23:44, Shane Warner wrote:<br>
<br>
&gt; Maybe using -memcache would give you a nice performance increase.<br>
<br>
With 1.5.x, the performance difference between disk cache and memcache is s=
ignificantly smaller, particularly in use cases which see a large percentag=
e of cache hits (such as this one).<br>
<br>
I made significant changes to the way we use the Linux page cache and inter=
act with the backing filesystem, so that our performance when serving files=
 which are held in the local disk cache approaches that of the cache filesy=
stem itself, rather than being several orders of magnitude slower.<br>

<br>
Cheers,<br>
<font color=3D"#888888"><br>
Simon.<br>
</font><div><div></div><div class=3D"h5"><br>
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</div></div></blockquote></div><br></div></div></div>

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