On Thursday 30 January 2014 22:04 Gene Heskett wrote: > On Thursday 30 January 2014 21:54:58 Thomas Tanghus did opine: > > On Thursday 30 January 2014 21:39 Duncan wrote: > > > > I did not know akonadictl had that option! Will try it as soon as I > > > > get back. > > > > > > > > > > > > > > > > I now see that it also has a 'vacuum' option, but the help text just > > > > says "Vacuum internal storage". Do you have any idea what it does? > > > > > > Active databases (and filesystems, which work similarly) typically > > > create and delete a lot of records/files. Akonadi deals with > > > messaging, so consider email and IM messages as they come in, with a > > > lot of them being spam and thus often deleted. But for performance > > > reasons most databases and filesystems don't normally entirely wipe > > > all those deleted records (files) at the time of deletion; they > > > simply mark them as deleted in their index(s) somewhere and continue. > > > > Thanks for the very detailed explanation Duncan. I wasn't familiar with > > the "vacuuming" term, but the assumptions I made seemed to be right. > > > > In another matter, @Gene: > > > Interesting Duncan, but my old 10.04.4 LTS version of it doesn't seem > > > to recognize that and doesn't do anything but throw a help screen, so > > > I have to stop, and restart kmail at least daily or it just gets > > > slower and slower. I assume the effect is the same? > > > > "but my old 10.04.4 LTS version" > > > > Gene, old lad, you're one LTS behind. I appreciate conservatism to a > > certain degree, but you really need to upgrade. > > Thanks for the flowers "lad" Indeed... :) But I am stuck with kernel > 2.6.32-132-rtai to be able to run linuxcnc even in the sim mode. But we (I > have mice in my pocket) should be ready to upgrade by 14.04 IF we can patch > that kernel. Paolo M. is behind on maintaining the rtai patch kit in > regard to late kernels. The xenomai patchkit also looks promising but > doesn't manage the almost vanishingly small latency jitter figures that the > RTAI patches can. That is rather important when running stepper motors as > jitter burns up available torque.
I should have trimmed this post, but I wouldn't know where :D I could have spent an hour or two looking up linuxcnc, rtai, xenomai patchkit, and so forth, but it seems to me you should be running a separate box (or virtual box) for your "stepper motors". I vaguely remember you mentioning it, but also then thought that it wasn't anyway relevant to a "desktop" environment. Trying seriously to be as diplomatic as possible, I'd say that you should really consider separating your mission critical work from you day-to-day work space. > Cheers, Gene To you too, and sorry if I sounded condescending - I'm not sure I have the age for it in this forum :) -- Med venlig hilsen / Best Regards Thomas Tanghus ___________________________________________________ This message is from the kde mailing list. Account management: https://mail.kde.org/mailman/listinfo/kde. Archives: http://lists.kde.org/. More info: http://www.kde.org/faq.html.
