Dmitriy Vyukov d2ab2b9f42 sync: improve Once fast path ... Use atomic.LoadUint32(&done) instead of atomic.AddInt32(&done, 0) on fast path. benchmark old ns/op new ns/op delta BenchmarkOnce 13.40 7.26 -45.82% BenchmarkOnce-2 22.90 4.04 -82.36% BenchmarkOnce-4 25.60 2.16 -91.56% BenchmarkOnce-8 25.80 1.38 -94.65% BenchmarkOnce-16 24.40 1.33 -94.55% (on HP Z600, 2 x Intel Xeon E5620, 8 HT cores, 2.4 GHz) R=golang-dev, rsc CC=golang-dev https://golang.org/cl/4787041		2011-07-21 11:30:14 -04:00
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atomic	sync/atomic: delete workaround	2011-07-20 08:39:24 +10:00
cond_test.go	sync: always wake up previously sleeping goroutines on Cond.Signal	2011-06-01 20:30:42 -03:00
cond.go	sync: always wake up previously sleeping goroutines on Cond.Signal	2011-06-01 20:30:42 -03:00
Makefile	sync: use sync/atomic	2011-02-25 14:29:47 -05:00
mutex_test.go	go/printer: changed max. number of newlines from 3 to 2	2011-07-14 14:39:40 -07:00
mutex.go	sync: improve Mutex to allow successive acquisitions	2011-06-30 11:13:29 -04:00
once_test.go	sync: add benchmark for Once.	2011-06-27 16:02:13 -04:00
once.go	sync: improve Once fast path	2011-07-21 11:30:14 -04:00
rwmutex_test.go	sync: improve RWMutex performance	2011-07-12 09:24:21 -07:00
rwmutex.go	sync: improve RWMutex performance	2011-07-12 09:24:21 -07:00
waitgroup_test.go	sync: add fast paths to WaitGroup	2011-07-18 12:35:55 -04:00
waitgroup.go	sync: add fast paths to WaitGroup	2011-07-18 12:35:55 -04:00