FreeLists / dokuwiki / [dokuwiki] Re: version 2005-09-22, loading page slow

[Harry Fuecks <hfuecks@xxxxxxxxx>]

OK - well 100% CPU usage on the server could be related although I
assume people are experiencing a client-side problem here - the
browser keeps saying "page loading" - so these are two seperate
problems.

Looking at the indexer it already has a mechanism make sure only one
indexer runs at any given time, by using a "lock" directory.

Attached is an updated version of indexer.php (./lib/exe/indexer.php)
which flushes the image first along with headers that should get the
browser to drop the connection as soon as it's received the whole
image. Indexing (if needed) then happens after this.

Haven't tested it extensively but it looks good so far (both Firefox
and IE drop the connection immediately). Another possible optimization
would be to check whether indexing the page is actually needed before
require_once is called - should reduce the effort PHP has to make.

It's possible that keeping the connection open was part of the problem
causing high CPU usage but it's probably not worth guessing until so
hard figures are available (e.g. profiling)

Anyway - will drop a copy of this script to Andy via darcs.


On 10/6/05, Christoph Schindler <hop@xxxxxxxxxxxx> wrote:
> On Thu, Oct 06, 2005 at 10:48:05AM +0200, Harry Fuecks wrote:
> > When people are saying "it's slow to load", do you mean the browser
> > keeps say "page loading"?
>
> That and the cpu usage goes up to 100% for several seconds. If you load
> another page during the time, it takes even longer, and so on.. until
> you have a couple dozen apache-threads that each uses a view % of the
> cpu.
>
> Later today I'll finally have the time to look into it.
>
> hop
>
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