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    <language>en-us</language>    <build-info>
        <version>8.20.10</version>
        <build-number>820010</build-number>
        <build-date>22-06-2022</build-date>
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<item>
            <title>[OPNFLWPLUG-327] Statistics collection slow - performance</title>
                <link>https://jira.opendaylight.org/browse/OPNFLWPLUG-327</link>
                <project id="10155" key="OPNFLWPLUG">OpenFlowPlugin</project>
                    <description>&lt;p&gt;Statistics collection performance regressed from Helium SR1. In Helium SR!, statistics for 5k flows are collected in ~4 seconds. On master built today, statistics collection for 5k flow times out after the 100 seconds. It think it takes about 15-20 minutes to do all the round-robin collection.&lt;/p&gt;

&lt;p&gt;To reproduce: run the integration md-sal performance test flow_add_delete.py:&lt;/p&gt;

&lt;p&gt;./flow_add_delete_test.py --flows=1000 --threads=5 --bulk-delete  --auth&lt;/p&gt;

&lt;p&gt;and observe the line &apos;Stats collected in &amp;lt;xyz&amp;gt; seconds.&apos; xyz for Helium SR1 and for the master should be the same if run on the same hardware.&lt;/p&gt;</description>
                <environment>&lt;p&gt;Operating System: All&lt;br/&gt;
Platform: All&lt;/p&gt;</environment>
        <key id="27595">OPNFLWPLUG-327</key>
            <summary>Statistics collection slow - performance</summary>
                <type id="10104" iconUrl="https://jira.opendaylight.org/secure/viewavatar?size=xsmall&amp;avatarId=10303&amp;avatarType=issuetype">Bug</type>
                                                <status id="5" iconUrl="https://jira.opendaylight.org/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="green"/>
                                    <resolution id="10000">Done</resolution>
                                        <assignee username="vdemcak@cisco.com">Vaclav Demcak</assignee>
                                    <reporter username="jmedved@cisco.com">Jan Medved</reporter>
                        <labels>
                    </labels>
                <created>Sat, 29 Nov 2014 00:34:50 +0000</created>
                <updated>Mon, 27 Sep 2021 09:01:23 +0000</updated>
                            <resolved>Thu, 4 Dec 2014 16:42:47 +0000</resolved>
                                                                    <component>General</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="56360" author="jmedved@cisco.com" created="Sat, 29 Nov 2014 04:54:51 +0000"  >&lt;p&gt;Upgraded to showstopper. Not only is the performance much worse than it was in SR1, collection is not correct - the controller &quot;discovers&quot; many more flows than there are in the network.&lt;/p&gt;

&lt;p&gt;Reproduce: blast in 50k flows with flow config blaster. Let it run for an hour. After about an hour, the controller reports ~70k found flows.&lt;/p&gt;</comment>
                            <comment id="56361" author="mirehak@cisco.com" created="Tue, 2 Dec 2014 15:03:26 +0000"  >&lt;p&gt;&lt;a href=&quot;https://git.opendaylight.org/gerrit/#/c/13308/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://git.opendaylight.org/gerrit/#/c/13308/&lt;/a&gt;&lt;/p&gt;</comment>
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