Em Mon, Nov 27, 2017 at 08:14:57AM -0800, Davidlohr Bueso escreveu: > On Sun, 26 Nov 2017, Andi Kleen wrote: > > > > Applies on today's -tip tree. Please consider for v4.16. > > > > No numbers on the improvements? > > I have not done performance tests perse for perf, but ultimately > it will depend a lot on the workload and size of the tree. I had > previously measured, on a Xeon E5-2450 @ 2.10GHz, the cost of > an rb_first() was ~60 cycles for 100 nodes, and ~75 cycles with > 1000 nodes. fwiw.
I'll try to do some before/after perf stat runs to compare output and to see the overall diff in cycles, etc. - Arnaldo
