On 10 Nov 2009, at 08:56, Martin Gerdes wrote:
First, how slow is slow? Time from pushing the send button until the
new webpage is loaded rises from 10.6 to 103 seconds.
10.6 is already horrendously slow (unless perhaps it's a 20-year-old
PC),
which leads me to wonder what you're doing. One thing is that with
ProxyHTMLExtended On you could be parsing lots of text, so make
sure you use flags to ensure you don't apply more rules to it than
you absolutely need to.
And every page of the webapplication I have tried is just as slow,
so its not just a particular page which loads very slowly.
The encoding to utf-8 happens within libxml2 if the input encoding is
supported. The output is a invokes apr_xlate, which in turn is normally
a wrapper for iconv. So this could be pointing the finger at your
iconv.
Does it make any difference if lots of small rewrites have happened
vs. if nothing matched any proxy_html rules?
Top on the server shows that the server is sitting idle, so it's not
that the recoding is taking up that much CPU (which would be
ridiculous anyway).
Does it make any difference if you send an HTTP/1.0 request
or force a connection close? Can you get mod_diagnostics
output to track the data running through the filter?
--
Nick Kew
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