Lowering OB Memory usage.

[Monk]

http://people.summit-servers.com/monk/2010/11/09/srcds-memory-usage/

More or less giving it less stack size prevents large growth because NPTL has a super-high stack size per thread (10MB on CentOS 5.5)

Lowering VM usage also releases pressure on the TLB and gives you more filesystem buffer cache and other free memory.

#!/bin/bash
ulimit -s 512 # you can try 128 or even 64 for gameservers
./srcds_run ....

[LordMarqus]

Hello, is that safe to lowering stack size? Any drawbacks? Would it be good
to use this on machine with many servers (shared hosting)?

Thanx in advance for an answer. Best regards

[Monk]

Solaris uses small stack sizes. (64k). AIX uses like 32k? FreeBSD uses 1024 (IIRC)

Do you really need large stack sizes? I don't think so. I've ran apache with everything with a stack size of 512, 256, and 128 (was seeing some random ENOMEM with eaccelerator though @ anything less than 128)

I suggest using it to allow your filesystem buffer cache to actually be used instead of wasted by large stack sizes.