Timestamps in trace files

From: Daniel Fink <daniel.fink_at_sun.com>
Date: Tue, 22 Jul 2003 14:23:07 -0600
Message-Id: <25988.338975@fatcity.com>

This is a multi-part message in MIME format.
--------------44A29CE17D1C99EC60E9E78B

Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit

I was perusing a 10046 trace file and I noticed that timestamps are written to the trace file. Sometimes they were very regular (3 minutes apart give or take 30 seconds) while other times they were hours apart. I have noticed that two timestamps are never written without any intervening activity. Anyone have any idea on the reasoning behind the timestamps and the 'triggering event'?

Daniel
--------------44A29CE17D1C99EC60E9E78B

Content-Type: text/x-vcard; charset=us-ascii;  name="daniel.fink.vcf"

Content-Transfer-Encoding: 7bit
Content-Description: Card for Daniel Fink
Content-Disposition: attachment;

 filename="daniel.fink.vcf"

begin:vcard
n:Fink;Daniel
tel;cell:303.808.3282
tel;work:303.272.3225
x-mozilla-html:TRUE
adr:;;;;;;
version:2.1
email;internet:daniel.fink_at_sun.com
title:DB Services Lead
x-mozilla-cpt:;-4832
fn:Daniel Fink
end:vcard

--------------44A29CE17D1C99EC60E9E78B--
Received on Tue Jul 22 2003 - 15:23:07 CDT