Making sure we don't loose track of this question... anyone have a response yet?
On Mon, Sep 21, 2009 at 3:07 PM, Aaron Williams <[email protected]> wrote: > Steve Reinhardt <stever <at> gmail.com> writes: > >> >> I don't know all the ins and outs of how stats are accumulated >> (they're not always counting what you think they are), but do realize >> that in FS mode cores that aren't running user code are in the kernel >> idle loop (just like on a real machine). So total ticks should >> normally be consistent across all the cores since the cores don't >> magically vanish and reappear based on whether they have something to >> do. (Though there may be differences if you're simulating from boot >> and the OS actually enables the extra cores later in the boot >> process.) >> >> As for 2 vs 4 cores, that's more mysterious, but if your benchmark is >> too small then you could be getting eaten up by overheads. >> >> Steve >> > > > I am reposting this reply since I never heard a response on it... > > How can I tell how many of the kernel mode ticks are being used to handle the > pthreads management and how much is being spent in kernel mode idle loop? Is > that what the two percentages are to the immediate right of the number of > ticks > in the output file? What are these percentages if not? > > Thanks! > > Aaron > > > > > _______________________________________________ > m5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/m5-users > _______________________________________________ m5-users mailing list [email protected] http://m5sim.org/cgi-bin/mailman/listinfo/m5-users
