On Tue, 11 Feb 2014 08:17:00 +0100 Peter Zijlstra <pet...@infradead.org> wrote:
> On Mon, Feb 10, 2014 at 03:02:30PM -0800, Andrew Morton wrote: > > On Mon, 10 Feb 2014 20:58:20 +0100 Peter Zijlstra <pet...@infradead.org> > > wrote: > > > > > Hi all, > > > > > > I would propose merging the following patches... > > > > > > The first set is mostly from Jason and tweaks the mutex adaptive > > > spinning, AIM7 throughput numbers: > > > > > Jobs/min/ Jobs/sec/ Time: Time: Time: Time: > Running child time > Forks Jobs/min child child parent childU childS std_dev > JTI :max :min > > > > PRE: 100 2000.04 21564.90 2721.29 311.99 3.12 0.01 0.00 > > > 99 > > > POST: 100 2000.04 42603.85 5142.80 311.99 3.12 0.00 0.00 > > > 99 > > > > What do these columns represent? I'm guessing the large improvement > > was in context switches? > > I pasted the header from reaim above; hmpf. I wonder what's the difference between Jobs/min, Jobs/min(child) and Jobs/sec(child), which is not Jobs/min(child) / 60. > I'm not entirely sure what the > bloody thing does and I hate that it takes hours to get these numbers :/ > > Bloody stupid benchmark if you ask me. heh, yes, it's stupid how long many benchmarks take. Ditch it. A change like this should be testable with a 30-line microbenchmark which runs in 5 seconds tops. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
