On Wed, Mar 28, 2012 at 11:40:19AM -0300, Claudio Freire wrote:
When it's just swap, tmpfs will contend with other processes, possibly pushing process memory to disk far more frequently. This decreases those processes' performance, but it also results in the possibility of runaway processes: processes that require 50G of RAM will get an OOM when running without swap, but when using a 100G swap partition will get the request granted happily, and the performance drop that entails.
Remember a thrashing system is usually only recoverable with a hard reset.
Are you still using swap? With the current ram prices, I don't bother to add any swap anymore. How much swap is used in your system (try 'free -m')? I prefer to just add a bit more mem and don't have a trashing system anymore. (Instead of trashing the OOM killer will just kill some process, hopefully the right one ;) ) Cheers, Michael. -- Michael Schroeder mls@suse.de SUSE LINUX Products GmbH, GF Jeff Hawn, HRB 16746 AG Nuernberg main(_){while(_=~getchar())putchar(~_-1/(~(_|32)/13*2-11)*13);} -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org