Willy Tarreau c6ba9a0b9b MINOR: sched: have one runqueue ticks counter per thread ... The runqueue_ticks counts the number of task wakeups and is used to position new tasks in the run queue, but since we've had per-thread run queues, the values there are not very relevant anymore and the nice value doesn't apply well if some threads are more loaded than others. In addition, letting all threads compete over a shared counter is not smart as this may cause some excessive contention. Let's move this index close to the run queues themselves, i.e. one per thread and a global one. In addition to improving fairness, this has increased global performance by 2% on 16 threads thanks to the lower contention on rqueue_ticks. Fairness issues were not observed, but if any were to be, this patch could be backported as far as 2.0 to address them.		2021-02-20 13:03:37 +01:00
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haproxy	MINOR: sched: have one runqueue ticks counter per thread	2021-02-20 13:03:37 +01:00
import	BUG/MINOR: xxhash: make sure armv6 uses memcpy()	2021-02-04 17:14:58 +01:00