On 05/13/2014 09:36 PM, Rik van Riel wrote: [snip] >> >> echo 2048 > /cgroup/c/cpu.shares >> >> Where [ABC].sh are spinners: > > I suspect the "are spinners" is key. > > Infinite loops can run all the time, while dbench spends a lot of > its time waiting for locks. That waiting may interfere with getting > as much CPU as it wants.
That's what we are thinking, also we assume that by introducing load decay mechanism, it become harder for the sleepy tasks to gain enough slice, well, that currently just imagination, more investigation is needed ;-) Regards, Michael Wang > -- 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/
