[wp-hackers] Cache solution for WPMU?

Robin Adrianse shorty114 at shorty114.net
Fri Sep 22 03:08:44 GMT 2006

> I use the APD and pprofp program here. :-) But which time is the most
important? Total elapsed, system or user time? Sorry for the
> n00b question.

The more important time is the time it took on the server to process the
request, so the system time. The user time can vary, due to many conditions
such as their internet connection (56k vs. Cable), their location (you're in
USA, they're in China or something), and so on.

I would be more worried about the system time, for the user time is often on
their end.

On 9/21/06, "Roland Häder" <r.haeder at will-hier-weg.de> wrote:
> Thank for all your hints. I have uploaded a little patch which will fix
> lots of notice messages which are normally surpressed (and they shall always
> be surpressed on a "productive/hot" blog) but they can be made visuable with
> error_reporting(E_ALL);.
> I want your oppinion here: Do surpressed notices slow down the interpreter
> while parsing PHP scripts? In my view they do. Some mails past I wrote that
> the interpreter needs to "handle" them by doing some analysis (e.g.
> undefined variable or non-exisiting object used string-to-int converting
> where the most notices when I debug WP).
> Do you share my oppinion about this matter?
> > I agree. My WordPress pages were taking a while to load (almost 10
> > seconds,
> > unheard of by me with my host before), and it turned out that they were
> > doing some stuff on the backend of the server. After normal conditions
> > resumed, the execution was back to around a second and mostly under
> that.
> >
> > > Zend's Studio software has a script profiling tool that works very
> > > well for this purpose.
> I use the APD and pprofp program here. :-) But which time is the most
> important? Total elapsed, system or user time? Sorry for the n00b question.
> > > Now, about your pages taking 20 seconds to generate. That is almost 20
> > > seconds too long unless the server is a Commodore 64. I don't believe
> > > you are running 20+ plugins and you haven't found THE ONE that is
> > > causing this. Nothing in WordPress is that slow.
> I will try out to get my blog installed in Intranet and then disable every
> plugin step-by-step.
> Btw: the Extended Archive Plugin (or so?) did show up the most notice
> messages. And I could fix everyone. :-) I send my patch to the author to let
> him know it.
> > > Have you tried var_dump($wpdb) on wp_footer to find badly-written
> > > queries, insane joins, or tables that could use an extra index? Have
> > > you called the datacenter to ask if somebody over-watered the ficus or
> > > something? ;-)
> I will try this var_dump($wpdb) thing out. Thanks. And I'm "root" of my
> server. :-)
> Roland
> --
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