Re: [PATCH-tip v5 17/21] TP-futex: Group readers together in wait queue

2017-02-03 Thread valdis . kletnieks
On Fri, 03 Feb 2017 13:42:46 -0500, Waiman Long said: > This patch set does guarantee some minimum performance level, but it > can't guarantee fairness for all the lock waiters. OK, sounds like it's a situation that's statistically unlikely, but it has protections against starvation so the system

Re: [PATCH-tip v5 17/21] TP-futex: Group readers together in wait queue

2017-02-03 Thread valdis . kletnieks
On Fri, 03 Feb 2017 13:03:50 -0500, Waiman Long said: > On a 2-socket 36-core E5-2699 v3 system (HT off) running on a 4.10 > WW futex TP futex Glibc > - > Total locking ops35,707,234