![]() | ||||||||||
Messages in this thread |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thu, 26 Dec 2002 08:41 pm, Andrew Morton wrote: > Con Kolivas wrote: > > ... > > process_load: > > Kernel [runs] Time CPU% Loads LCPU% Ratio > > 2.5.52 [3] 84.4 79 17 19 1.26 > > 2.5.52-mm1 [7] 91.0 79 18 19 1.36 > > 2.5.52-mm2 [7] 90.3 79 18 19 1.35 > > 2.5.53 [7] 86.9 77 18 21 1.30 > > 2.5.53-mm1 [7] 117.1 58 47 40 1.75 > > Big change in the balance here in process_load. Probably a better balance > > really given that process_load runs 4*num_cpus processes, and the kernel > > compile is make -j (4*num_cpus) > > Presumably the run-child-first change. process_load is complex. I > haven't looked into its dynamics and I'm not sure what, if anything, > we can conclude from this test. > > > ... > > The SMP results seem to fluctuate too much between runs even with the > > average of 7 runs. I'm wondering whether I should even bother with them > > any more as they dont add any useful information as far as I can see. > > Comments on this would be appreciated. Andrew? > > Well for the sorts of things which you are interested in, SMP is not the > target market, shall we say? Agreed. Can't believe the initial UP v SMP results got slashdotted on kerneltrap. I doubt anyone made any sense of them let alone made any useful comment relating to them. I'll drop them in the interest of time and signal to noise ratio. > Is the variability seen in other kernels (especially 2.4)? If not then > we'd need to find out what causes it. A run through previous tests and a fresh run with vanilla 2.4.20 shows just as much variation. It seems to be more a function of SMP rather than 2.5. Con -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.0 (GNU/Linux) iD8DBQE+CvyMF6dfvkL3i1gRAteoAKCqRu111T5ikGuYcUl4C7FgCjPvBgCfcUU7 gTiMlZxKT5KxjYDg+GeejkE= =DbYb -----END PGP SIGNATURE----- - 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/ | |||||||||
| Last update: 2005-03-22 11:31 [from the cache] ©2003-2008 | ||||||||||