Let me give some deeper background as to what is happening behind the scene :)

The data that is displayed comes from the following sources:

0.6
this is the current m5 time that is found on the wiki
time
this is the last known run time in seconds for the test
delta %
this is calculated by (("m5 test time" - "last run time") / "m5 test time") * 100
delta time
this is calculated by "m5 test time" - "last run time"

std.dev is calculated using the following python code:

# algorithm is from http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
# first pass to calculate average of all data points
for item in values:
avg = avg + item

#print avg, n, avg / n

avg = avg / n

# second pass to calculate variance
for item in values:
sum2 = sum2 + (item - avg)**2
sum1 = sum1 + (item - avg)

v = (sum2 - sum1 / n) / (n - 1)

where "values" is all run time values for the previous 7 days for the given test.

hope this helps :)

---
Bear

Build and Release Engineer
Open Source Applications Foundation (OSAF)
[EMAIL PROTECTED]
http://www.osafoundation.org

[EMAIL PROTECTED]
http://code-bear.com

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