commit 42d45cfd0c3d62357a6549c62f535e4d4fe08d91
author Glenn Kasten <gkasten@google.com> Wed May 02 10:34:47 2012 -0700
committer Glenn Kasten <gkasten@google.com> Thu May 10 13:39:16 2012 -0700
tree 40667398d6db38a70fa2729e6d574a01b1ebefd1
parent c150ca7dda844891fa684f6898da7f7e0c40329d

Update fast mixer statistics

Compute statistics on fast mixer elapsed time and CPU load per cycle using a
simple moving average rather than by fixed blocks.  This has a couple advantages:
 - remove burstiness of CPU usage due to former floating-point calculations in fast mixer
 - gives us flexibility in how to report (e.g. could report over just the last 1 second)

Disadvantage is increased RAM, and since the samples are not updated
atomically, it is possible to have an error in the statistics.  This
should not be much of an issue due to the relatively large number of samples.

Also add CPU raw ns and adjusted MHz statistics.

Change-Id: Iaa2cd13f18250c3162aff40409b3694b769d9505