why session_start makes site slowly???

[maodenny]

I have a trouble bother me some days.
here is my trouble:
in page one I wrote
<?
session_start();
session_register($myval);
$myval = mymane;
?>

and in the other pages I wrote:
<?
sesion_start();
if isset($myval)
{
........
}
?>

it works well at begin.but after sometime,it begins slowly.
if I close all the ie.browse the page
again, it is right again.
It seems the session_start() make the
slow.
Any one can help me?
thanks

[Anon]

Do you happen to have any loops or anything inside the if(isset( ... ) ) block? Always check for loops, and add debugging lines/timestamps if you need to.

Other than that I have no idea. I have never experianced cookies slowing down my pages...

HTH.

[Anon]

thank you for your reply!

but I don't have any loops in that block
and I am sure the funciton session_start
slow down the page.

php use file to store the session value in the server side .I think the file operation
slows down the page.

But I don't know how to solve it.