On Mon, 2011-06-27 at 11:45 -0700, John Williams wrote: > Has anyone experimented with 'nice' or 'ionice' to improve x2go > responsiveness? If so, what x2go processes might benefit? > > The linux server that I am running x2goserver on sometimes has high > loads, both CPU and disk IO. However, there should be plenty of > resources left, since never are all of the CPU cores maxed out, and > the root filesystem is running on a fast SSD. Nevertheless, sometimes > x2go responsivity will go to almost nothing for a few seconds. > > So, I was thinking to try x2go with 'nice -n -10' and 'ionice -c 2 -n > 0' or even 'ionice -c 1', but I am not sure how to go about that. Does > there exist anywhere a short description of the jobs that x2go starts > when it is invoked, and what each does? Currently I see: > > x2gocleansessions (root, PPID 0) > x2goagent (user, PPID 1) > x2goruncommand (user, PPID 0) > ssh (.x2go) (user, PPID 0) > sshfs (.x2go) (user, PPID 0) > > but I am not sure which are important to responsivity, and which > scripts started which processes (so I can edit the scripts to insert > 'nice' commands). <snip> I'm going to take a guess that x2gocleansessions, x2goruncommand, and sshfs are NOT what you are looking for. x2goagent, ssh, and perhaps X itself might be candidates but that is just my guess - John
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