tree edf33164dfdd829eae74244198f790629d2fabc8
parent 67700e9b90a38cc3719c818bc967153e8b7b429e
author Dave Borowitz <dborowitz@google.com> 1351035339 -0700
committer Dave Borowitz <dborowitz@google.com> 1351115527 -0700

sync: Keep a moving average of last fetch times

Try to more accurately estimate which projects take the longest to
sync by keeping an exponentially weighted moving average (a=0.5) of
fetch times, rather than just recording the last observation. This
should discount individual outliers (e.g. an unusually large project
update) and hopefully allow truly slow repos to bubble to the top.

Change-Id: I72b2508cb1266e8a19cf15b616d8a7fc08098cb3