runtime: speedup GC sweep phase (batch free)
benchmark old ns/op new ns/op delta
garbage.BenchmarkParser
4370050250 3779668750 -13.51%
garbage.BenchmarkParser-2
3713087000 3628771500 -2.27%
garbage.BenchmarkParser-4
3519755250 3406349750 -3.22%
garbage.BenchmarkParser-8
3386627750 3319144000 -1.99%
garbage.BenchmarkTree
493585529 408102411 -17.32%
garbage.BenchmarkTree-2
500487176 402285176 -19.62%
garbage.BenchmarkTree-4
473238882 361484058 -23.61%
garbage.BenchmarkTree-8
486977823 368334823 -24.36%
garbage.BenchmarkTree2
31446600 31203200 -0.77%
garbage.BenchmarkTree2-2
21469000 21077900 -1.82%
garbage.BenchmarkTree2-4
11007600 10899100 -0.99%
garbage.BenchmarkTree2-8
7692400 7032600 -8.58%
garbage.BenchmarkParserPause
241863263 163249450 -32.50%
garbage.BenchmarkParserPause-2
120135418 112981575 -5.95%
garbage.BenchmarkParserPause-4
83411552 64580700 -22.58%
garbage.BenchmarkParserPause-8
51870697 42207244 -18.63%
garbage.BenchmarkTreePause
20940474 13147011 -37.22%
garbage.BenchmarkTreePause-2
20115124 11146715 -44.59%
garbage.BenchmarkTreePause-4
17217584 7486327 -56.52%
garbage.BenchmarkTreePause-8
18258845 7400871 -59.47%
garbage.BenchmarkTree2Pause
174067190 172674190 -0.80%
garbage.BenchmarkTree2Pause-2
131175809 130615761 -0.43%
garbage.BenchmarkTree2Pause-4
95406666 93972047 -1.50%
garbage.BenchmarkTree2Pause-8
86056095 85334952 -0.84%
garbage.BenchmarkParserLastPause
329932000 324790000 -1.56%
garbage.BenchmarkParserLastPause-2
209383000 210456000 +0.51%
garbage.BenchmarkParserLastPause-4
113981000 112921000 -0.93%
garbage.BenchmarkParserLastPause-8
77967000 76625000 -1.72%
garbage.BenchmarkTreeLastPause
29752000 18444000 -38.01%
garbage.BenchmarkTreeLastPause-2
24274000 14766000 -39.17%
garbage.BenchmarkTreeLastPause-4
19565000 8726000 -55.40%
garbage.BenchmarkTreeLastPause-8
21956000 10530000 -52.04%
garbage.BenchmarkTree2LastPause
314411000 311945000 -0.78%
garbage.BenchmarkTree2LastPause-2
214641000 210836000 -1.77%
garbage.BenchmarkTree2LastPause-4
110024000 108943000 -0.98%
garbage.BenchmarkTree2LastPause-8
76873000 70263000 -8.60%
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/
5991049