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    <title>MongoDB Jira</title>
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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-3423] Terrible slow hasNext() together with insert()</title>
                <link>https://jira.mongodb.org/browse/SERVER-3423</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Running the attached javascript in a linux environment completes in less than half a second.&lt;br/&gt;
Running the same code in a freebsd environment completes in about 10 seconds. Why is this?&lt;/p&gt;</description>
                <environment>FreeBSD 8.2 amd64</environment>
        <key id="19460">SERVER-3423</key>
            <summary>Terrible slow hasNext() together with insert()</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="balboah">Johnny Boy</reporter>
                        <labels>
                            <label>performance</label>
                    </labels>
                <created>Wed, 13 Jul 2011 12:59:48 +0000</created>
                <updated>Mon, 29 Aug 2011 15:56:43 +0000</updated>
                            <resolved>Wed, 13 Jul 2011 13:59:21 +0000</resolved>
                                    <version>1.8.1</version>
                    <version>1.8.2</version>
                                                    <component>JavaScript</component>
                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="42144" author="eliot" created="Wed, 13 Jul 2011 14:47:13 +0000"  >&lt;p&gt;Its not implying its a bug in freebsd, but a difference in how freebsd and linux handle certain things which is causing problems.&lt;br/&gt;
Its unclear what that problem is at this point.&lt;/p&gt;</comment>
                            <comment id="42139" author="pumalo" created="Wed, 13 Jul 2011 14:18:56 +0000"  >&lt;p&gt;I dont really think this is a freebsd problem, I too am eager to find a solution for this as all of my production servers run freebsd and this problem is holding me back from changing my current mysql databases to mongodb, im sure alot of other users are in the same predicament. &lt;/p&gt;</comment>
                            <comment id="42136" author="eliot" created="Wed, 13 Jul 2011 13:59:21 +0000"  >&lt;p&gt;See &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-663&quot; title=&quot;need to test memory mapped file performance on freebsd&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-663&quot;&gt;&lt;del&gt;SERVER-663&lt;/del&gt;&lt;/a&gt; &lt;br/&gt;
There is something odd about the way freebsd handles virtual memory that is causing problems.&lt;/p&gt;</comment>
                    </comments>
                    <attachments>
                            <attachment id="12250" name="test.js" size="314" author="balboah" created="Wed, 13 Jul 2011 12:59:48 +0000"/>
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