diff options
Diffstat (limited to 'src/pkg/testing/benchmark.go')
| -rw-r--r-- | src/pkg/testing/benchmark.go | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/pkg/testing/benchmark.go b/src/pkg/testing/benchmark.go index ad938027d..cf73e2b48 100644 --- a/src/pkg/testing/benchmark.go +++ b/src/pkg/testing/benchmark.go @@ -8,10 +8,11 @@ import ( "flag" "fmt" "os" + "runtime" "time" ) -var matchBenchmarks = flag.String("benchmarks", "", "regular expression to select benchmarks to run") +var matchBenchmarks = flag.String("test.bench", "", "regular expression to select benchmarks to run") // An internal type but exported because it is cross-package; part of the implementation // of gotest. @@ -64,6 +65,9 @@ func (b *B) nsPerOp() int64 { // runN runs a single benchmark for the specified number of iterations. func (b *B) runN(n int) { + // Try to get a comparable environment for each run + // by clearing garbage from previous runs. + runtime.GC() b.N = n b.ResetTimer() b.StartTimer() @@ -175,7 +179,7 @@ func RunBenchmarks(matchString func(pat, str string) (bool, os.Error), benchmark for _, Benchmark := range benchmarks { matched, err := matchString(*matchBenchmarks, Benchmark.Name) if err != nil { - println("invalid regexp for -benchmarks:", err.String()) + println("invalid regexp for -test.bench:", err.String()) os.Exit(1) } if !matched { |