The issue was my application, before I reworte it, was chewing up about 80% of a gig of DDR memory. It is an app that connects to over 500 servers and for each server the app creates 1 thread and three socket connections (1 to the server and 2 to MySQL database). Each thread also creates pretty extensive hash tables (sometimes well over a few thousand keys). I am aware of perl's hash table memory hogging but the constant-time O(1) lookup is needed for speed of execution.

I also run a front end for this app via a webpage that I host on my apache web server on the same machine so I was worried about the resources left over to handle any http queries. In the end I rewrote the app to implement some load balancing and had the app respawn itself after ((scalar(@servers)/5)+1) and then start from where it left off. At first I tried system() but this of course did not work due to the blocking nature of system wating for a return so I used exec() to overwrite the current pid and dump the resources back to the OS. Seems to be working out nicely and each iteration only uses about 20% of the memory now.


www.perlskripts.com

In reply to Re^4: release threads resources? by Elijah
in thread release threads resources? by Elijah

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