Dmitriy Vyukov ee24bfc058 runtime: unify mutex code across OSes ... The change introduces 2 generic mutex implementations (futex- and semaphore-based). Each OS chooses a suitable mutex implementation and implements few callbacks (e.g. futex wait/wake). The CL reduces code duplication, extends some optimizations available only on Linux/Windows to other OSes and provides ground for futher optimizations. Chan finalizers are finally eliminated. (Linux/amd64, 8 HT cores) benchmark old new BenchmarkChanContended 83.6 77.8 ns/op BenchmarkChanContended-2 341 328 ns/op BenchmarkChanContended-4 382 383 ns/op BenchmarkChanContended-8 390 374 ns/op BenchmarkChanContended-16 313 291 ns/op (Darwin/amd64, 2 cores) benchmark old new BenchmarkChanContended 159 172 ns/op BenchmarkChanContended-2 6735 263 ns/op BenchmarkChanContended-4 10384 255 ns/op BenchmarkChanCreation 1174 407 ns/op BenchmarkChanCreation-2 4007 254 ns/op BenchmarkChanCreation-4 4029 246 ns/op R=rsc, jsing, hectorchu CC=golang-dev https://golang.org/cl/5140043		2011-11-02 16:42:01 +03:00
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386	freebsd: Add stubs for runtime·osyield and runtime·usleep.	2011-09-30 16:39:10 -07:00
amd64	freebsd: Add stubs for runtime·osyield and runtime·usleep.	2011-09-30 16:39:10 -07:00
defs.c	runtime: fix freebsd-amd64 (and part of 386)	2011-03-24 11:45:12 +11:00
mem.c	runtime: faster finalizers	2011-10-06 18:42:51 +03:00
os.h	runtime: turn "too many EPIPE" into real SIGPIPE	2011-04-25 16:58:00 -04:00
signals.h	runtime: ,s/[a-zA-Z0-9_]+/runtime·&/g, almost	2010-11-04 14:00:19 -04:00
thread.c	runtime: unify mutex code across OSes	2011-11-02 16:42:01 +03:00