From mboxrd@z Thu Jan  1 00:00:00 1970
From: Olaf Hering <olaf@aepfle.de>
Subject: no cycles for certain xentrace entries
Date: Tue, 31 Aug 2010 20:44:58 +0200
Message-ID: <20100831184458.GA24018@aepfle.de>
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Hello,

what is the reason for the empty tsc for some xentracing calls, like
TRC_HVM_IOPORT_READ?
It makes sorting the resulting logfile by tsc value difficult because
the 0 entries end up at the beginning of the logfile.

Olaf