Messages in this thread | | | Date | Mon, 11 Nov 2002 00:10:17 +0100 | From | Toon van der Pas <> | Subject | Re: 2.5.46-mm2 |
| |
On Sun, Nov 10, 2002 at 09:11:30AM -0800, William Lee Irwin III wrote: > William Lee Irwin III wrote: > >> Go for it, I'm just trying to get tiobench to actually run (seems to > >> have new/different "die from too many threads" behavior wrt. --threads). > >> Dropping me a fresh kernel shouldn't slow anything down. > > On Sun, Nov 10, 2002 at 08:58:28AM -0800, Andrew Morton wrote: > > It could be the procps thing? `tiobench --threads 256' shows up as a > > single process in top and ps due to the new thread consolidation feature. > > If you run `ps auxm' or hit 'H' in top, all is revealed. Not my fave > > feature that. > > Turns out monitoring things via /proc/ slowed it down by some ridiculous > factor while it was trying to spawn threads. 9 hours became less than 1s > when I stopped looking.
Ah! You just rediscovered the strange world of quantum physics: the result of your experiment depends on wether you're looking or not.
:-)
-- /"\ | "I never much liked Macs. \ / ASCII RIBBON CAMPAIGN | All the interesting stuff is hidden away." X AGAINST HTML MAIL | -- Linus Torvalds (at the Geek Cruise) / \ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |