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Keith Randall authored
Avoids a potential O(n^2) performance problem when dequeueing from very popular channels. benchmark old ns/op new ns/op delta BenchmarkChanPopular 2563782 627201 -75.54% Change-Id: I231aaeafea0ecd93d27b268a0b2128530df3ddd6 Reviewed-on: https://go-review.googlesource.com/1200Reviewed-by:
Russ Cox <rsc@golang.org>
8eb8b40a