On 18/08/2016 14:18, Denys Vlasenko wrote: > > - 2,588,839,023 branches # 977.555 > M/sec ( +- 0.02% ) > + 2,599,319,615 branches # 1046.786 > M/sec ( +- 0.04% ) > - 3,620,273 branch-misses # 0.14% of all > branches ( +- 0.67% ) > + 3,577,771 branch-misses # 0.14% of all > branches ( +- 0.69% ) > - 2.648799072 seconds time > elapsed ( +- 0.24% ) > + 2.487452268 seconds time > elapsed ( +- 0.31% ) > > Good, we run more insns/cycle, as expected. However, a bit more branches.
Can you see where the missed branches are? Assuming branch misses are the case where IF=0, perhaps there are a few places that can be changed to spin_lock/unlock_irq or local_irq_disable/enable. Paolo
