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author | Ian Lance Taylor <iant@golang.org> | 2018-01-09 01:23:08 +0000 |
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committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2018-01-09 01:23:08 +0000 |
commit | 1a2f01efa63036a5104f203a4789e682c0e0915d (patch) | |
tree | 373e15778dc8295354584e1f86915ae493b604ff /libgo/go/context/benchmark_test.go | |
parent | 8799df67f2dab88f9fda11739c501780a85575e2 (diff) | |
download | gcc-1a2f01efa63036a5104f203a4789e682c0e0915d.zip gcc-1a2f01efa63036a5104f203a4789e682c0e0915d.tar.gz gcc-1a2f01efa63036a5104f203a4789e682c0e0915d.tar.bz2 |
libgo: update to Go1.10beta1
Update the Go library to the 1.10beta1 release.
Requires a few changes to the compiler for modifications to the map
runtime code, and to handle some nowritebarrier cases in the runtime.
Reviewed-on: https://go-review.googlesource.com/86455
gotools/:
* Makefile.am (go_cmd_vet_files): New variable.
(go_cmd_buildid_files, go_cmd_test2json_files): New variables.
(s-zdefaultcc): Change from constants to functions.
(noinst_PROGRAMS): Add vet, buildid, and test2json.
(cgo$(EXEEXT)): Link against $(LIBGOTOOL).
(vet$(EXEEXT)): New target.
(buildid$(EXEEXT)): New target.
(test2json$(EXEEXT)): New target.
(install-exec-local): Install all $(noinst_PROGRAMS).
(uninstall-local): Uninstasll all $(noinst_PROGRAMS).
(check-go-tool): Depend on $(noinst_PROGRAMS). Copy down
objabi.go.
(check-runtime): Depend on $(noinst_PROGRAMS).
(check-cgo-test, check-carchive-test): Likewise.
(check-vet): New target.
(check): Depend on check-vet. Look at cmd_vet-testlog.
(.PHONY): Add check-vet.
* Makefile.in: Rebuild.
From-SVN: r256365
Diffstat (limited to 'libgo/go/context/benchmark_test.go')
-rw-r--r-- | libgo/go/context/benchmark_test.go | 56 |
1 files changed, 55 insertions, 1 deletions
diff --git a/libgo/go/context/benchmark_test.go b/libgo/go/context/benchmark_test.go index b792327..3c526dd 100644 --- a/libgo/go/context/benchmark_test.go +++ b/libgo/go/context/benchmark_test.go @@ -7,10 +7,64 @@ package context_test import ( . "context" "fmt" + "runtime" + "sync" "testing" + "time" ) -func BenchmarkContextCancelTree(b *testing.B) { +func BenchmarkWithTimeout(b *testing.B) { + for concurrency := 40; concurrency <= 4e5; concurrency *= 100 { + name := fmt.Sprintf("concurrency=%d", concurrency) + b.Run(name, func(b *testing.B) { + benchmarkWithTimeout(b, concurrency) + }) + } +} + +func benchmarkWithTimeout(b *testing.B, concurrentContexts int) { + gomaxprocs := runtime.GOMAXPROCS(0) + perPContexts := concurrentContexts / gomaxprocs + root := Background() + + // Generate concurrent contexts. + var wg sync.WaitGroup + ccf := make([][]CancelFunc, gomaxprocs) + for i := range ccf { + wg.Add(1) + go func(i int) { + defer wg.Done() + cf := make([]CancelFunc, perPContexts) + for j := range cf { + _, cf[j] = WithTimeout(root, time.Hour) + } + ccf[i] = cf + }(i) + } + wg.Wait() + + b.ResetTimer() + b.RunParallel(func(pb *testing.PB) { + wcf := make([]CancelFunc, 10) + for pb.Next() { + for i := range wcf { + _, wcf[i] = WithTimeout(root, time.Hour) + } + for _, f := range wcf { + f() + } + } + }) + b.StopTimer() + + for _, cf := range ccf { + for _, f := range cf { + f() + } + } +} + +func BenchmarkCancelTree(b *testing.B) { depths := []int{1, 10, 100, 1000} for _, d := range depths { b.Run(fmt.Sprintf("depth=%d", d), func(b *testing.B) { |