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From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [DPDK/DTS Bug 1969] dts: fix variance in single core forward
 performance test
Date: Thu, 16 Jul 2026 20:24:01 +0000
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X-Bugzilla-Component: DTS
X-Bugzilla-Version: 26.07
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http://bugs.dpdk.org/show_bug.cgi?id=3D1969

            Bug ID: 1969
           Summary: dts: fix variance in single core forward performance
                    test
           Product: DPDK
           Version: 26.07
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: DTS
          Assignee: dev@dpdk.org
          Reporter: abailey@iol.unh.edu
                CC: juraj.linkes@pantheon.tech, probb@iol.unh.edu
  Target Milestone: ---

Currently, multiple performance runs yield varying results with a standard
deviation of about 10Mpps. This is on the same testbed that has consistent
performance results when running old DTS with a standard deviation of about
1Mpps. There was a commit sent to old DTS specifically addressing this vari=
ance
issue by limiting the transmission duration to 5 seconds and averaging resu=
lts
over a couple of runs instead of one. Testing this 5 second gap instead of =
30
has shown consistent results when testing new DTS locally, however, averagi=
ng
over a few runs may be beneficial to implement as well with new DTS.

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