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On Sun, 20 Nov 2005 21:35, Muli Ben-Yehuda wrote: > On Sun, Nov 20, 2005 at 09:28:13PM +1100, Con Kolivas wrote: > > Ok I've had a look at the actual program now ;) Are you timing the time > > it takes to completion of everything? > > > > This part of your program: > > for (i= 0; i<8; i++) > > pthread_join(tid[i], NULL); > > > > Cares about the order the threads finish. Do you think this might be > > affecting your results? > > I don't see why it should matter. Depending on the order the threads > finish, we will always wait in pthread_join until the last one > finishes, and then do between 0 and 7 more pthread_joins that should > return immediately (since the last one has already finished). If it was instant it shouldn't matter. I'm aware of that in theory, but there have certainly been reports of pthread_join taking quite a while happening in a sort of lazy/sloppy way. I don't know why this is the case but I wondered if it was showing up here. Cheers, Con - 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/ | ||||||||||
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