Re: Any way to stop PHP taking >30 mb of RAM?

You wrote: > > I have a script that generates several hundred HTML pages. Each page > > has a navigation table (which requires recursive calls to read database > > files), which initially I built for each page. This caused PHP to take > > over the machine - I couldn't stop it, couldn't move the mouse, etc. > > Eventually after leaving it thrashing the disk overnight I turned it > > off. Fortunately although e2fsck failed the first time, I was able to > > get my machine back. > > > > I optimized my script by building the navigation tables only 25 instead > > of 400 times, and then using regexps with back references on these > > tables. It now completes. However, it takes so much memory (between 29 > > and 35mb (this is the total (my Apache uses mm under Linux with PHP 4 > > as a DSO)- not the sum of threads which some people get misled by) I > > have to kill and restart httpd every time I run it - otherwise my > > (64mb) machine becomes unusable. > > Optimize your script some more? I don't quite understand what you are > doing, but it probably should not be that tricky to change the recursion > into iteration, and that right there will save you buttloads of CPU time and > RAM. Have done. > Figure out where all that processing time is going, and find another way to > do it. It's reading 400 pages and building HTML from them - this is 95% of the processing time. But really what I was concerned about was that PHP just gobbled up my RAM and didn't give it back - I wouldn't mind machine being unable to cope for a short period so long as it gives me my RAM back afterwards. -- Random fortune I want a WESSON OIL lease!!