Wed, 09 Sep 2026 13:39:21 +0200 http://www.polarhome.com/horde/whups/ticket/?id=80 Filehandle and process limit on redhat When I test GNU Parallel I use redhat as the central node. From there I ssh in parallel to all the other systems. But because the limit of processes and open files is very low (100 and 200) I can only run very few jobs in parallel. It is fine to keep the soft limit where it is, but it would be nice if the hard limit was much higher. So that you can raise the limit if you know what you are doing. On most of my systems I have 1M file handles, and I do not experience any performance or memory issues due to this. So the adjustment is for nofile and noproc in /etc/security/limits.conf These seem OK: /proc/sys/fs/file-max /proc/sys/kernel/pid_max Sun, 16 Sep 2018 14:30:35 +0200 http://www.polarhome.com/horde/whups/ticket/?id=80#t113