> As a test of raw CPU power I've been decompressing the kernel tree, with > a UP 2.6 kernel this takes about 1m 15s, I don't know if bz2 is > multithreaded but even if it's not I would expect a slight speed increase > but in fact with a SMP 2.6 kernel it take 13 ~ 26m, with a SMP 2.4 > kernel it takes 1m 28s and with a 2.4 UP 1m 35s.
The 2.4 numbers look correct (slightly slower), the 2.6 numbers do not. Nothing obviously wrong from the traces however. If you pin the bzip to a given processor do you get different results according to which CPU ? (see man taskset for info on the commands) If you get very different times on the two processors that will be very useful information. - 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/
