On Sunday 22 April 2007, William Lee Irwin III wrote: >On Sat, Apr 21, 2007 at 02:17:02PM -0400, Gene Heskett wrote: >> CFS-v4 is quite smooth in terms of the users experience but after >> prolonged observations approaching 24 hours, it appears to choke the cpu >> hog off a bit even when the system has nothing else to do. My amanda runs >> went from 1 to 1.5 hours depending on how much time it took gzip to handle >> the amount of data tar handed it, up to about 165m & change, or nearly 3 >> hours pretty consistently over 5 runs. > >Welcome to infinite history. I'm not surprised, apart from the time >scale of anomalies being much larger than I anticipated.
[...] >Pardon my saying so but you appear to be describing anomalous behavior >in terms of "scheduler warmups." Well, that was what I saw, it took gzip about 4 or 5 minutes to get to the first 90% hit in htop's display, and it first hit the top of the display with only 5%. And the next backup run took about 2h:21m, so we're back in the ballpark. I'd reset amanda's schedule for a faster dumpcycle too, along with giving the old girl a new drive, all about the time we started playing with this, so the times I'm recording now may well be nominal. I suppose I should boot a plain 2.6.21-rc7 and make a run & time that, but I don't enjoy masochism THAT much. :) -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) I've enjoyed just about as much of this as I can stand. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/