In rare cases, the php page will just hung in there like waiting for the output from the server. If I refresh the page, usually it will work, if not, close the browser and revisit the page, it will work.
That page is not necessary with heavy php codes running. I have a master list list hundreds products at one page, it works fine. But sometimes a page just displays one product may have the problems of hung in there. And it is not the same page having the problems.
The cases are rare. And our server is not heavily used and we have large memory updated recently.
So my questions are
1) Is it a php issue? In the past, when I use php on PC, I can see sometimes the CPU usage is very high when running php scripts. Now I am on Unix. Will this CPU usage of php be the same as on PC. Is it the problem? If somehow the CPU usage is very high and then the next thread will hung in there?
2) Or is it memory of the Server issue? We just have updated the memory, and the server usage is not high. If someone ftp hundreds files to the server at the same time, will it be the problem of memory shortage for other http users? How to prevent it on a shared server?
3) or is it memory issue of the client computer? The new computer we have may have seen the php page hung in there one or two times, but an old computer may have see this situation more often than on new computer. Could it be because the client computer short of memory and it stops to get the output from the server?
Thanks!
