2007-07-04 07:23:51 +08:00
|
|
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
|
|
|
<!--
|
|
|
|
|
Licensed to the Apache Software Foundation (ASF) under one or more
|
|
|
|
|
contributor license agreements. See the NOTICE file distributed with
|
|
|
|
|
this work for additional information regarding copyright ownership.
|
|
|
|
|
The ASF licenses this file to You under the Apache License, Version 2.0
|
|
|
|
|
(the "License"); you may not use this file except in compliance with
|
|
|
|
|
the License. You may obtain a copy of the License at
|
|
|
|
|
|
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
|
|
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
|
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
|
|
See the License for the specific language governing permissions and
|
|
|
|
|
limitations under the License.
|
|
|
|
|
-->
|
|
|
|
|
|
|
|
|
|
<!-- Content Stylesheet for Site -->
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<!-- start the processing -->
|
|
|
|
|
<!-- ====================================================================== -->
|
|
|
|
|
<!-- Main Page Section -->
|
|
|
|
|
<!-- ====================================================================== -->
|
|
|
|
|
<html>
|
|
|
|
|
<head>
|
|
|
|
|
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<title>JMeter - User's Manual: Glossary</title>
|
|
|
|
|
</head>
|
|
|
|
|
|
|
|
|
|
<body bgcolor="#ffffff" text="#000000" link="#525D76">
|
|
|
|
|
<table border="0" cellspacing="0">
|
|
|
|
|
<!-- TOP IMAGE -->
|
|
|
|
|
<tr>
|
2008-04-09 06:50:14 +08:00
|
|
|
<td>
|
|
|
|
|
<!-- Need to specify height otherwise iframe seems to grab extra -->
|
|
|
|
|
<iframe src="http://www.apache.org/ads/halfbanner.html" height="102"
|
|
|
|
|
style="border-width:0; float: left" frameborder="0" scrolling="no"></iframe>
|
|
|
|
|
</td>
|
|
|
|
|
<td align="left">
|
|
|
|
|
<a href="http://jakarta.apache.org"><img width="505" height="48" src="../images/jakarta-logo.gif" alt="Jakarta" title="Jakarta" border="0"/></a>
|
2007-07-04 07:23:51 +08:00
|
|
|
</td>
|
|
|
|
|
<td align="right">
|
|
|
|
|
<a href="http://jakarta.apache.org/jmeter/"><img width="221" height="102" src="../images/logo.jpg" alt="JMeter" title="JMeter" border="0"/></a>
|
|
|
|
|
</td>
|
|
|
|
|
</tr>
|
|
|
|
|
</table>
|
|
|
|
|
<table border="0" width="100%" cellspacing="4">
|
|
|
|
|
<tr><td colspan="2">
|
|
|
|
|
<hr noshade size="1"/>
|
|
|
|
|
</td></tr>
|
|
|
|
|
|
|
|
|
|
<tr>
|
|
|
|
|
<!-- LEFT SIDE NAVIGATION -->
|
|
|
|
|
<td width="20%" valign="top" nowrap="true">
|
|
|
|
|
<p><strong>About</strong></p>
|
|
|
|
|
<ul>
|
|
|
|
|
<li> <a href="../index.html">Overview</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="../changes.html">Changes</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="../known_bugs.html">Known Bugs</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="../license.html">License</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="http://wiki.apache.org/jakarta-jmeter/JMeterCommitters">Contributors</a>
|
|
|
|
|
</li>
|
|
|
|
|
</ul>
|
|
|
|
|
<p><strong>Download</strong></p>
|
|
|
|
|
<ul>
|
2007-11-29 03:42:40 +08:00
|
|
|
<li> <a href="http://jakarta.apache.org/site/downloads/downloads_jmeter.cgi">Download Releases</a>
|
2007-07-04 07:23:51 +08:00
|
|
|
</li>
|
|
|
|
|
<li> <a href="../nightly.html">Developer (Nightly) Builds</a>
|
|
|
|
|
</li>
|
|
|
|
|
</ul>
|
|
|
|
|
<p><strong>Documentation</strong></p>
|
|
|
|
|
<ul>
|
|
|
|
|
<li> <a href="../usermanual/index.html">User Manual</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="../api/index.html">Javadocs</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="../localising/index.html">Localisation (Translator's Guide)</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="../building.html">Building JMeter and Add-Ons</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="http://wiki.apache.org/jakarta-jmeter">JMeter Wiki</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="http://wiki.apache.org/jakarta-jmeter/JMeterFAQ">FAQ (Wiki)</a>
|
|
|
|
|
</li>
|
|
|
|
|
</ul>
|
|
|
|
|
<p><strong>Tutorials (PDF format)</strong></p>
|
|
|
|
|
<ul>
|
|
|
|
|
<li> <a href="../usermanual/jmeter_distributed_testing_step_by_step.pdf">Distributed Testing</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="../usermanual/jmeter_proxy_step_by_step.pdf">Recording Tests</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="../usermanual/junitsampler_tutorial.pdf">JUnit Sampler</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="../usermanual/jmeter_accesslog_sampler_step_by_step.pdf">Access Log Sampler</a>
|
2007-08-14 05:47:07 +08:00
|
|
|
</li>
|
|
|
|
|
<li> <a href="../extending/jmeter_tutorial.pdf">Extending JMeter</a>
|
2007-07-04 07:23:51 +08:00
|
|
|
</li>
|
|
|
|
|
</ul>
|
|
|
|
|
<p><strong>Community</strong></p>
|
|
|
|
|
<ul>
|
|
|
|
|
<li> <a href="http://jakarta.apache.org/site/getinvolved.html">Get Involved</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="http://jakarta.apache.org/site/mail.html">Mailing Lists</a>
|
|
|
|
|
</li>
|
|
|
|
|
<li> <a href="http://jakarta.apache.org/site/cvsindex.html">SVN Repositories</a>
|
|
|
|
|
</li>
|
|
|
|
|
</ul>
|
|
|
|
|
</td>
|
|
|
|
|
<td width="80%" align="left" valign="top">
|
|
|
|
|
<table>
|
|
|
|
|
<tr>
|
|
|
|
|
<td bgcolor="#525D76">
|
|
|
|
|
<div align="right"><a href="index.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Index</font></a></div>
|
|
|
|
|
</td>
|
|
|
|
|
<td bgcolor="#525D76">
|
|
|
|
|
<div align="right"><a href="regular_expressions.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Prev</font></a></div>
|
|
|
|
|
</td>
|
|
|
|
|
</tr>
|
|
|
|
|
</table>
|
|
|
|
|
<br>
|
|
|
|
|
<table border="0" cellspacing="0" cellpadding="2" width="100%">
|
|
|
|
|
<tr><td bgcolor="#525D76">
|
|
|
|
|
<font color="#ffffff" face="arial,helvetica,sanserif">
|
|
|
|
|
<a name="glossary"><strong>21. Glossary</strong></a>
|
|
|
|
|
</font>
|
|
|
|
|
</td></tr>
|
|
|
|
|
<tr><td>
|
|
|
|
|
<blockquote>
|
2007-11-24 11:27:22 +08:00
|
|
|
<p >
|
|
|
|
|
|
|
|
|
|
|
2008-04-09 06:50:14 +08:00
|
|
|
<a name="Latency">
|
2007-11-24 11:27:22 +08:00
|
|
|
<b >
|
|
|
|
|
Latency
|
|
|
|
|
</b>
|
2008-04-09 06:50:14 +08:00
|
|
|
</a>
|
|
|
|
|
. JMeter measures the latency from just before sending the request to
|
2007-11-24 11:27:22 +08:00
|
|
|
just after the first response has been received. Thus the time
|
|
|
|
|
includes all the processing needed to assemble the request as well as
|
|
|
|
|
assembling the response, which in general will be longer than one
|
|
|
|
|
byte.
|
|
|
|
|
Protocol analysers (such as Wireshark) measure the time when bytes are actually sent/received over the interface.
|
|
|
|
|
The JMeter time should be closer to that which is experienced by a
|
|
|
|
|
browser or other application client.
|
|
|
|
|
|
|
|
|
|
</p>
|
|
|
|
|
<p >
|
|
|
|
|
|
|
|
|
|
|
2008-04-09 06:50:14 +08:00
|
|
|
<a name="Median">
|
|
|
|
|
<b >
|
|
|
|
|
Median
|
|
|
|
|
</b>
|
|
|
|
|
</a>
|
|
|
|
|
is a number which divides the samples into two equal halves.
|
|
|
|
|
Half of the samples are smaller than the median, and half are larger.
|
|
|
|
|
[Some samples may equal the median.]
|
|
|
|
|
This is a standard statistical measure.
|
|
|
|
|
See, for example:
|
|
|
|
|
<a href="http://en.wikipedia.org/wiki/Median">
|
|
|
|
|
Median
|
|
|
|
|
</a>
|
|
|
|
|
entry at Wikipedia.
|
|
|
|
|
The Median is the same as the 50
|
|
|
|
|
<sup >
|
|
|
|
|
th
|
|
|
|
|
</sup>
|
|
|
|
|
Percentile
|
|
|
|
|
|
|
|
|
|
</p>
|
|
|
|
|
<p >
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<a name="Percentile">
|
|
|
|
|
<b >
|
|
|
|
|
90% Line (90
|
|
|
|
|
<sup >
|
|
|
|
|
th
|
|
|
|
|
</sup>
|
|
|
|
|
Percentile)
|
|
|
|
|
</b>
|
|
|
|
|
</a>
|
|
|
|
|
is the value below which 90% of the samples fall.
|
|
|
|
|
The remaining samples too at least as long as the value.
|
|
|
|
|
This is a standard statistical measure.
|
|
|
|
|
See, for example:
|
|
|
|
|
<a href="http://en.wikipedia.org/wiki/Percentile">
|
|
|
|
|
Percentile
|
|
|
|
|
</a>
|
|
|
|
|
entry at Wikipedia.
|
|
|
|
|
|
|
|
|
|
</p>
|
|
|
|
|
<p >
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<a name="Throughput">
|
2007-11-24 11:27:22 +08:00
|
|
|
<b >
|
|
|
|
|
Throughput
|
|
|
|
|
</b>
|
2008-04-09 06:50:14 +08:00
|
|
|
</a>
|
2007-11-24 11:27:22 +08:00
|
|
|
is calculated as requests/unit of time.
|
|
|
|
|
The time is calculated from the start of the first sample to the end of the last sample.
|
|
|
|
|
This includes any intervals between samples.
|
|
|
|
|
|
|
|
|
|
</p>
|
|
|
|
|
</blockquote>
|
2007-07-04 07:23:51 +08:00
|
|
|
</p>
|
|
|
|
|
</td></tr>
|
|
|
|
|
<tr><td><br></td></tr>
|
|
|
|
|
</table>
|
|
|
|
|
<table>
|
|
|
|
|
<tr>
|
|
|
|
|
<td bgcolor="#525D76">
|
|
|
|
|
<div align="right"><a href="index.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Index</font></a></div>
|
|
|
|
|
</td>
|
|
|
|
|
<td bgcolor="#525D76">
|
|
|
|
|
<div align="right"><a href="regular_expressions.html"><font size=-1 color="#ffffff" face="arial,helvetica,sanserif">Prev</font></a></div>
|
|
|
|
|
</td>
|
|
|
|
|
</tr>
|
|
|
|
|
</table>
|
|
|
|
|
<br>
|
|
|
|
|
</td>
|
|
|
|
|
</tr>
|
|
|
|
|
|
|
|
|
|
<tr><td colspan="2">
|
|
|
|
|
<hr noshade size="1"/>
|
|
|
|
|
</td></tr>
|
|
|
|
|
<tr><td colspan="2">
|
|
|
|
|
<div align="center"><font color="#525D76" size="-1"><em>
|
2008-01-17 09:00:38 +08:00
|
|
|
Copyright © 1999-2008, Apache Software Foundation
|
2007-07-04 07:23:51 +08:00
|
|
|
</em></font></div>
|
|
|
|
|
</td></tr>
|
|
|
|
|
</table>
|
|
|
|
|
</body>
|
|
|
|
|
</html>
|
|
|
|
|
<!-- end the processing -->
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
