Haoping fix simulation (#356)

* simulation: add benchmark features

* tmp

* simulation: modify Debug interface

* Added BlockReceived and BlockReady function to Debug interface.
* Added Benchmark features.

* fix

* fix typos

1 files changed, 36 insertions, 0 deletions

diff --git a/simulation/utils.go b/simulation/utils.go
new file mode 100644
index 0000000..f0d864b
--- /dev/null
+++ b/simulation/utils.go
@@ -0,0 +1,36 @@
+// Copyright 2018 The dexon-consensus Authors
+// This file is part of the dexon-consensus library.
+//
+// The dexon-consensus library is free software: you can redistribute it
+// and/or modify it under the terms of the GNU Lesser General Public License as
+// published by the Free Software Foundation, either version 3 of the License,
+// or (at your option) any later version.
+//
+// The dexon-consensus library is distributed in the hope that it will be
+// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
+// General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the dexon-consensus library. If not, see
+// <http://www.gnu.org/licenses/>.
+
+package simulation
+
+import (
+	"math"
+)
+
+func calcMeanAndStdDeviation(a []float64) (float64, float64) {
+	sum := float64(0)
+	for _, i := range a {
+		sum += i
+	}
+	mean := sum / float64(len(a))
+	dev := float64(0)
+	for _, i := range a {
+		dev += (i - mean) * (i - mean)
+	}
+	dev = math.Sqrt(dev / float64(len(a)))
+	return mean, dev
+}