Merge branch 'measure-analysis' into packet-exchange

measure-analysis/measure-analysis.py

@@ -356,11 +356,12 @@ class MeasureSet:
             sum_prop = sum(prop)
 
             avg = sum(map(lambda x: abs(x[0] - self.middle)*x[1], enumerate_prop)) / sum_prop
+            avg_centered = sum(map(lambda x: x[0]*x[1], enumerate_prop)) / sum_prop
             var = 0
             for x, p in enumerate_prop:
                 var += p * x**2
             var /= sum_prop
-            var -= (avg + self.middle)**2
+            var -= avg_centered**2
 
             self.avg.append(avg)
             self.var.append(var)

measure-analysis/measures/measure-report.md

@@ -56,11 +56,11 @@ Min                           | Max                           | Avg
 
 **Common test metadata:** Board name: Slate, Linux kernel version: 4.19, Boot Parameters: isolcpus, ETF qdisc delta: 200us, Task priority: 99, Device and processor load: ssh, qdisc: pfast_fifo
 
-Metadata        | Min         | Max        | Avg        | Var         
---------------- | ----------- | ---------- | ---------- | ------------
-**i, duration** | **jitter**  | **jitter** | **jitter** | **jitter**  
-100000us, 0h17  | -139.0000us | 147.0000us | 10.4314us  | -2817.6483us
-1000us, 0h1     | -140.0000us | 142.0000us | 5.1925us   | -1408.4847us
+Metadata        | Min         | Max        | Avg        | Var       
+--------------- | ----------- | ---------- | ---------- | ----------
+**i, duration** | **jitter**  | **jitter** | **jitter** | **jitter**
+100000us, 0h17  | -139.0000us | 147.0000us | 10.4314us  | 252.7494us
+1000us, 0h1     | -140.0000us | 142.0000us | 5.1925us   | 50.2992us 
 
 ![alt text](graphs/packet_jitterjitter.png "packet_jitter Graph")