Messages in this thread | | | Date | Sat, 24 Jul 1999 14:20:28 +0200 | From | Artur Skawina <> | Subject | Re: Measured overhead of timer interrupts |
| |
> > Hmm, I raytraced an image running three kernels differing only > > in HZ value (+the HZ masquerading stuff). This is what i got:
> Those results look a bit strange: when increasing HZ 8 times, you get
I didn't fix the scaling before running the first HZ=1024 test. After fixing the problem the numbers are:
100: 8.65user 0.00system 0:08.65elapsed 100%CPU (0avgtext+0avgdata 0maxresident)k 1024: 8.66user 0.01system 0:08.72elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
So the HZ change from 100 to 1024 means only a ~0.8% slowdown for the raytracer - looks much better now. All stability problems have magically disappeared after upgrading to 2.3.12pre1 ;)
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |