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| author | Michael Stapelberg <stapelberg@debian.org> | 2014-06-19 09:22:53 +0200 |
|---|---|---|
| committer | Michael Stapelberg <stapelberg@debian.org> | 2014-06-19 09:22:53 +0200 |
| commit | 8a39ee361feb9bf46d728ff1ba4f07ca1d9610b1 (patch) | |
| tree | 4449f2036cccf162e8417cc5841a35815b3e7ac5 /src/pkg/runtime/hash_test.go | |
| parent | c8bf49ef8a92e2337b69c14b9b88396efe498600 (diff) | |
| download | golang-8a39ee361feb9bf46d728ff1ba4f07ca1d9610b1.tar.gz | |
Imported Upstream version 1.3upstream/1.3
Diffstat (limited to 'src/pkg/runtime/hash_test.go')
| -rw-r--r-- | src/pkg/runtime/hash_test.go | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/pkg/runtime/hash_test.go b/src/pkg/runtime/hash_test.go index 312c4be8e..1c11e0538 100644 --- a/src/pkg/runtime/hash_test.go +++ b/src/pkg/runtime/hash_test.go @@ -397,10 +397,10 @@ func avalancheTest1(t *testing.T, k Key) { // all sums inside those bounds with 99% probability. N := n * hashSize var c float64 - // find c such that Prob(mean-c*stddev < x < mean+c*stddev)^N > .99 - for c = 0.0; math.Pow(math.Erf(c/math.Sqrt(2)), float64(N)) < .99; c += .1 { + // find c such that Prob(mean-c*stddev < x < mean+c*stddev)^N > .9999 + for c = 0.0; math.Pow(math.Erf(c/math.Sqrt(2)), float64(N)) < .9999; c += .1 { } - c *= 2.0 // allowed slack - we don't need to be perfectly random + c *= 4.0 // allowed slack - we don't need to be perfectly random mean := .5 * REP stddev := .5 * math.Sqrt(REP) low := int(mean - c*stddev) |