On Friday 04 January 2019 16:27:44 deloptes wrote: > Gene Heskett wrote: > > And becoming a bigger problem by each kernel release. Just the > > bigger stack image a context switch involves takes the 64 bit stuff > > into the very close to unusable state. Even the hit of enabling pae > > on the 32 bit stuff is a quite noticeable hit on the rt performance. > > And it doesn't make a lot of sense, with 2 gigs of ram in one of > > these machines, it rarely gets into swap. Put another 2 gigs in it, > > and before you can say uptime, its into swap by 3-5 hundred megs. > > Pure nonsense to this old fart. Sigh, but they won't let me anywhere > > near the rope that sounds the whistle. > > Why would it swap, because of the RT using memory that can not be > freed up? Don't know how much RAM cnc requires but 2GB is a lot.
More than enough for LCNC, deloptes. Its running on the pi with only a gig of ram. In a weeks uptime, it has not touched a 10Gb swap. Hasn't been particularly busy but LCNC has been running, with the machine power disabled all this time. I have that one rigged to shut off all machine power when motion is disabled. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene>
