Chris wrote:
Hi,
I'm hoping somebody can give me advice on how I can go about debugging a
problem I've been having. The bottom of this email has some of the
details of my system.
There is an intermittent slowness throughout my site. At seemingly
random points in random scripts at random times it just seems to wait.
A few of these have been as long as 600 seconds, just sitting there,
apparently doing nothing. I've tried tracking down the problem using
microtime(), that jsut showed me how (mostly) random it was. The least
complex area in which I was able to isolate a problem was a 15 line
chunk of HTML, with some <?=MY_CONSTANT?> in them.
Are you sure it's the php code? Have you checked your database logs to
see if anything is being run that shouldn't be?
Using mysql_query/pg_query type functions have to wait for the query to
finish before returning, so problems with the db server may show up on
your site.
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