On 11/02/2015 01:32 AM, Andrey Ryabinin wrote: > And the major factor here is number 2. > > In your dmesg: > [ 67.891156] rbtree testing -> 570841 cycles > [ 88.609636] augmented rbtree testing > [ 116.546697] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! > [swapper/0:1] > > > I've tried to reproduce this, and got this: > [ 0.693574] rbtree testing -> 15513 cycles > 570841/15513 = 36x times faster. > > [ 1.159450] augmented rbtree testing -> 23675 cycles > [ 1.864996] > It took less than a second, meanwhile in your case it didn't finish in > 22 seconds. > > This makes me think that your host is overloaded and the problem is on > your side.
It's probably just a matter of putting some cond_resched()s in the test code. -- 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/
