commit 2a6a945d65c986dcc779f70f18afde1d7a74397b
author Sanna Catherine de Treville Wager <scwager@google.com> Fri Jul 28 11:02:01 2017 -0700
committer Sanna Catherine de Treville Wager <scwager@google.com> Wed Aug 02 16:45:37 2017 -0700
tree 065495450ff5c324fdac2581311bdbafd5424674
parent 2f3a4beb458716769f1d8439250ecc252fe6adce

Develop histogram logging

Add date to WriteToFile filenames and simplify
file format. Add timestamp logging to
NormalMixer. Change histogram resolution
dynamically based on logarithmic distance
from the distribution center. Add context
information: thread, hash and time.

Example of right end of a histogram with
rounding for values >= 27:

   1    1    2    1    1    1    2    2    1

             |                   |    |
   |    |    |    |    |    |    |    |    |
_____________________________________________
21.1 21.2 22.9 23.0 23.3 27.0 34.0 37.0 38.0   ms

Test: dumpsys media.log

Change-Id: I255e2d28d76a1c7a06d48e7c3eacdf2f846a7ea3