From: Len Brown <len.brown@intel.com>
Date: Thu, 14 Jun 2012 01:31:46 +0000 (-0400)
Subject: tools/power: turbostat: fix large c1% issue
X-Git-Tag: v3.6-rc1~82^2^12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c3ae331d1c2fe25edfbece73fda0bb312445b636;p=pandora-kernel.git

tools/power: turbostat: fix large c1% issue

Under some conditions, c1% was displayed as very large number,
much higher than 100%.

c1% is not measured, it is derived as "that, which is left over"
from other counters.  However, the other counters are not collected
atomically, and so it is possible for c1% to be calaculagted as
a small negative number -- displayed as very large positive.

There was a check for mperf vs tsc for this already,
but it needed to also include the other counters
that are used to calculate c1.

Signed-off-by: Len Brown <len.brown@intel.com>
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