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<channel>
    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
    </build-info>


<item>
            <title>[SERVER-32730] WiredTiger read-write performance for the insert benchmark</title>
                <link>https://jira.mongodb.org/browse/SERVER-32730</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This covers read-write performance for the insert benchmark. Other issues are open for load performance (&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-32707&quot; title=&quot;WiredTiger performance with the insert benchmark&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-32707&quot;&gt;SERVER-32707&lt;/a&gt;) and full scan performance (&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-32711&quot; title=&quot;WiredTiger scan performance for the insert benchmark&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-32711&quot;&gt;SERVER-32711&lt;/a&gt;).&lt;/p&gt;

&lt;p&gt;I will start with results from inMemory-16 (database in memory, 16 clients, 16 collections) and the test where each writer is limited to 100 inserts/second, there are 16 collections, 16 query clients and 16 writer clients with a query/writer pair per collection.&lt;/p&gt;

&lt;p&gt;The first table has throughput and HW efficiency metrics:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;ips.av - average insert rate, the target is 1600 given the rate limits, but because of artifacts in my Python code the max is ~1584.&lt;/li&gt;
	&lt;li&gt;qps.av - the average query rate&lt;/li&gt;
	&lt;li&gt;wkb/i - KB written to storage per insert&lt;/li&gt;
	&lt;li&gt;Mcpu/q - CPU overhead per query, alas this includes CPU used for queries and inserts&lt;/li&gt;
	&lt;li&gt;size - database size in GB at test end&lt;/li&gt;
	&lt;li&gt;rss - mysqld/mongod process size at test end in GB&lt;/li&gt;
	&lt;li&gt;wmb/s - storage write MB/s&lt;/li&gt;
	&lt;li&gt;cpu - average CPU utilization from vmstat us and sy columns&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;From these results:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;both engines sustain the target write rate&lt;/li&gt;
	&lt;li&gt;InnoDB gets ~2.2X more QPS&lt;/li&gt;
	&lt;li&gt;WiredTiger uses ~2.3X more CPU per query&lt;/li&gt;
&lt;/ul&gt;


&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;ips.av  qps.av  wkb/i   Mcpu/q  size    rss     wmb/s   cpu     engine&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;1584    31386   36.09   1184    116     103.5   57.2    37.2    WiredTiger-3.6.0&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;1584    67772   42.50    518    113     121.9   67.3    35.1    InnoDB-5.7.17&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;The worst case response times are:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;WiredTiger : ~0.5 seconds for insert, ~0.38 seconds for query&lt;/li&gt;
	&lt;li&gt;InnoDB: ~0.01 seconds for insert, ~0.009 seconds for query&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="483677">SERVER-32730</key>
            <summary>WiredTiger read-write performance for the insert benchmark</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-perf">Backlog - Performance Team</assignee>
                                    <reporter username="mdcallag">Mark Callaghan</reporter>
                        <labels>
                    </labels>
                <created>Wed, 17 Jan 2018 00:05:36 +0000</created>
                <updated>Tue, 6 Dec 2022 03:41:15 +0000</updated>
                                                                            <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>10</watches>
                                                                                                                <comments>
                            <comment id="1778188" author="ramon.fernandez" created="Thu, 18 Jan 2018 19:50:15 +0000"  >&lt;p&gt;Thanks for the detailed information &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=mdcallag&quot; class=&quot;user-hover&quot; rel=&quot;mdcallag&quot;&gt;mdcallag&lt;/a&gt;, adding to the backlog for investigation.&lt;/p&gt;</comment>
                            <comment id="1775981" author="mdcallag" created="Wed, 17 Jan 2018 00:34:18 +0000"  >&lt;p&gt;And for ioBound-none (16 clients, 16 collections, no compression, database larger than RAM)&lt;/p&gt;

&lt;p&gt;The metrics are:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;ips.av - average insert rate, the target is 1600 given the rate limits, but because of artifacts in my Python code the max is ~15845&lt;/li&gt;
	&lt;li&gt;qps.av - average query rate&lt;/li&gt;
	&lt;li&gt;wkb/i - KB written to storage per insert&lt;/li&gt;
	&lt;li&gt;r/q - iostat r/s divided by QPS, iostat&lt;/li&gt;
	&lt;li&gt;rkb/q - KB read from storage per query&lt;/li&gt;
	&lt;li&gt;Mcpu/q - CPU overhead per query, alas this includes CPU used for queries and inserts&lt;/li&gt;
	&lt;li&gt;size - database size in GB at test end&lt;/li&gt;
	&lt;li&gt;rss - mysqld/mongod process size at test end in GB&lt;/li&gt;
	&lt;li&gt;r/s - iostat r/s&lt;/li&gt;
	&lt;li&gt;rmb/s - MB read from storage per second&lt;/li&gt;
	&lt;li&gt;wmb/s - storage write MB/s&lt;/li&gt;
	&lt;li&gt;cpu - average CPU utilization from vmstat us and sy columns&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Summary:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;WiredTiger gets ~30% of the target insert rate, InnoDB gets the target insert rate&lt;/li&gt;
	&lt;li&gt;InnoDB gets ~7X more QPS than WiredTiger&lt;/li&gt;
	&lt;li&gt;WiredTiger does ~3.5X more reads from storage per query&lt;/li&gt;
	&lt;li&gt;WiredTiger uses ~6.6 more CPU per query&lt;/li&gt;
&lt;/ul&gt;


&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;ips.av  qps.av  wkb/i   r/q     rkb/q   Mcpu/q  size    rss     r/s     rmb/s   wmb/s   cpu     engine&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; 4852   1328    44.11   19.62   371.95  10989    500    15.1    26045   493.8   214.0   14.6    WiredTiger-3.6.0&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;15845   9541    41.54    5.55    88.80   1656    413    40.0    52953   847.3   658.2   15.8    InnoDB-5.7.17&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;Worst-case response time:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;WiredTiger - ~1.1 seconds for insert, ~0.16 seconds for query&lt;/li&gt;
	&lt;li&gt;InnoDB - ~0.12 seconds for insert, ~0.09 seconds for query&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;I haven&apos;t provided it for previous tests but my insert benchmark client maintains response time histograms. There are per client, so there are 16 histograms in the test with 16 clients.&lt;/p&gt;

&lt;p&gt;For this test, this is one of the histograms for WiredTiger and then InnoDB&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;256us       1ms       4ms      16ms      64ms     256ms        1s        4s       16s        gt         max&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&amp;nbsp;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;# WiredTiger&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;    0         0         0         0       136      3348     46516         0         0         0    0.946401&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&amp;nbsp;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;# InnoDB&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;    0         0         0     28496     21480        24         0         0         0         0    0.098741&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;
</comment>
                            <comment id="1775973" author="mdcallag" created="Wed, 17 Jan 2018 00:24:04 +0000"  >&lt;p&gt;And now for inMemory-1 (16 clients, 1 collection, in-memory database) the results with each writer limited to 1000/second.&lt;/p&gt;

&lt;p&gt;Summary:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;WiredTiger doesn&apos;t sustain the target insert rate, InnoDB almost does&lt;/li&gt;
	&lt;li&gt;InnoDB gets ~2.4X more QPS&lt;/li&gt;
	&lt;li&gt;WiredTiger uses ~2.9X more CPU/query&lt;/li&gt;
&lt;/ul&gt;


&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;ips.av  qps.av  wkb/i   Mcpu/q  size    rss     wmb/s   cpu     engine&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;15829   27935   15.96   1697    130     158.3   252.7   47.4    WiredTiger-3.6.0&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;15842   65617   19.89    577    131     133.8   315.1   37.9    InnoDB-5.7.17&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;Worst case response times:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;WiredTiger : ~1.12 seconds for insert, ~0.40 seconds for query&lt;/li&gt;
	&lt;li&gt;InnoDB : ~0.05 seconds for insert, ~0.05 seconds for query&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="1775964" author="mdcallag" created="Wed, 17 Jan 2018 00:12:44 +0000"  >&lt;p&gt;Still using inMemory-16, results for the test with each writer limited to 1000 inserts/second.&lt;/p&gt;

&lt;p&gt;Summary:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;neither engine sustains the target insert rate, but both are close as the max is ~15845&lt;/li&gt;
	&lt;li&gt;InnoDB writes ~1.5X more to storage per insert&lt;/li&gt;
	&lt;li&gt;WiredTiger uses ~3.5X more CPU per query&lt;/li&gt;
	&lt;li&gt;InnoDB sustains ~2.6X more queries/second&lt;/li&gt;
&lt;/ul&gt;


&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
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		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;ips.av  qps.av  wkb/i   Mcpu/q  size    rss     wmb/s   cpu     engine&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;15038   25995   21.11   1931    120     114.0   317.5   50.2    WiredTiger-3.6.0&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;15838   67111   23.67    558    111     120.5   374.8   37.4    InnoDB-5.7.17&lt;/span&gt;&lt;/pre&gt;
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&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;Worst case response times:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;WiredTiger : ~0.65 seconds for insert, ~0.42 seconds for query&lt;/li&gt;
	&lt;li&gt;InnoDB : ~0.01 seconds for insert, ~0.008 seconds for query&lt;/li&gt;
&lt;/ul&gt;
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