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From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [Bug 1148] Performance on AESNI MB PMD does not scale properly with
 number of threads
Date: Wed, 14 Dec 2022 10:58:00 +0000
X-Bugzilla-Reason: AssignedTo
X-Bugzilla-Type: new
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X-Bugzilla-Product: DPDK
X-Bugzilla-Component: cryptodev
X-Bugzilla-Version: 22.11
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X-Bugzilla-Severity: major
X-Bugzilla-Who: pablo.de.lara.guarch@intel.com
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https://bugs.dpdk.org/show_bug.cgi?id=3D1148

            Bug ID: 1148
           Summary: Performance on AESNI MB PMD does not scale properly
                    with number of threads
           Product: DPDK
           Version: 22.11
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: cryptodev
          Assignee: dev@dpdk.org
          Reporter: pablo.de.lara.guarch@intel.com
  Target Milestone: ---

As number of threads is increased, performance per core on AESNI MB PMD
decreases (it should stay constant). The root cause of this issue is a glob=
al
variable in the IPSec Multi-buffer library. A patch has been generated to f=
ix
it on the library, so users running the PMD with multiple threads are
encouraged to get the latest version (1.3.0) with the patch.

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