what causes php pages to hang?

[deras]

i just moved to my first server and added some php/mysql parts to my site. now my server load never goes about .5 and my cpu never goes about 50%. the server is 2100xp, 1 gig ram, 7200 rpm ide drive.

occasionally i get php pages that just hang, eventually loading a dead page(not often, but often enough that it is a concern). any idea what causes this and what i could do to minimize it?

[Thatsmej]

your using the mail() function ?

server of me had trouble with that..

[deras]

i am having the problems in all my php pages... its not just one. and it's just occasional. no i am not using that function.

my mysql activity only averages 9 operations per second as well.