Profiler

From Resin 3.0

(Difference between revisions)
Jump to: navigation, search
m
Line 7: Line 7:
 
     <servlet-mapping servlet-class="com.caucho.profiler.ProfilerServlet" url-pattern="/resin-profiler">
 
     <servlet-mapping servlet-class="com.caucho.profiler.ProfilerServlet" url-pattern="/resin-profiler">
 
       <init>
 
       <init>
         <profiler enabled="true" use-query="false"/>
+
         <profiler enabled="true"/>
 
       </init>
 
       </init>
 
       <load-on-startup/>
 
       <load-on-startup/>
 
     </servlet-mapping>
 
     </servlet-mapping>
 
== View Results ==
 
 
http://localhost:8080/webapp/resin-profiler
 
  
 
= Profiling requests =
 
= Profiling requests =
Line 32: Line 28:
 
       <dispatcher>REQUEST</dispatcher>
 
       <dispatcher>REQUEST</dispatcher>
 
     </filter-mapping>
 
     </filter-mapping>
 +
 +
== View Results ==
 +
 +
* Make a request, for example http://localhost:8080/webapp/foo.jsp
 +
* View results http://localhost:8080/webapp/resin-profiler
 +
 +
 +
    <table border='0'>
 +
      <caption>Profiling Results for /webapp</caption>
 +
      <tr><th>Name</th><th>Average Time</th><th>Total Time</th><th>Invocation Count</th></tr>
 +
      <tr class='level0'><td>
 +
          <table>
 +
            <tr><td></td><td class='text'>/foo.jsp</td></tr>
 +
          </table>
 +
 +
        </td><td class='number' title='totalTime=1.749 thisTime=0.369 childrenTime=1.379'>1.749</td><td class='number' title='totalTime=1.749 thisTime=0.369 childrenTime=1.379'>1.749</td><td class='number'>1</td></tr>
 +
      <tr class='level0'><td>
 +
          <table>
 +
            <tr><td></td><td class='text'>/resin-profiler</td></tr>
 +
 +
          </table>
 +
        </td><td class='number'>&nbsp;</td><td class='number' title='totalTime=0.000 thisTime=0.000 childrenTime=0.000'>0.000</td><td class='number'>0</td></tr>
 +
    </table>
  
  
Line 54: Line 73:
 
       <dispatcher>ERROR</dispatcher>
 
       <dispatcher>ERROR</dispatcher>
 
     </filter-mapping>
 
     </filter-mapping>
 +
 +
== View Results ==
 +
 +
* Make a request, for example http://localhost:8080/webapp/foo.jsp
 +
* View results http://localhost:8080/webapp/resin-profiler
 +
 +
 +
    <table border='0'>
 +
      <caption>Profiling Results for /webapp</caption>
 +
      <tr><th>Name</th><th>Average Time</th><th>Total Time</th><th>Invocation Count</th></tr>
 +
      <tr class='level0'><td>
 +
          <table>
 +
            <tr><td></td><td class='text'>/foo.jsp</td></tr>
 +
          </table>
 +
 +
        </td><td class='number' title='totalTime=1.749 thisTime=0.369 childrenTime=1.379'>1.749</td><td class='number' title='totalTime=1.749 thisTime=0.369 childrenTime=1.379'>1.749</td><td class='number'>1</td></tr>
 +
      <tr class='level1'><td>
 +
          <table>
 +
            <tr><td>&nbsp;&nbsp;&rarr;</td><td class='text'>/baz.jsp</td></tr>
 +
          </table>
 +
        </td><td class='number' title='totalTime=0.863 thisTime=0.863 childrenTime=0.000'>0.863</td><td class='number' title='totalTime=0.863 thisTime=0.863 childrenTime=0.000'>0.863</td><td class='number'>1</td></tr>
 +
 +
      <tr class='level1'><td>
 +
          <table>
 +
            <tr><td>&nbsp;&nbsp;&rarr;</td><td class='text'>/bar.jsp</td></tr>
 +
          </table>
 +
        </td><td class='number' title='totalTime=0.575 thisTime=0.515 childrenTime=0.060'>0.575</td><td class='number' title='totalTime=0.575 thisTime=0.515 childrenTime=0.060'>0.575</td><td class='number'>1</td></tr>
 +
      <tr class='level2'><td>
 +
          <table>
 +
 +
            <tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&rarr;</td><td class='text'>/bung.jsp</td></tr>
 +
          </table>
 +
        </td><td class='number' title='totalTime=0.060 thisTime=0.060 childrenTime=0.000'>0.060</td><td class='number' title='totalTime=0.060 thisTime=0.060 childrenTime=0.000'>0.060</td><td class='number'>1</td></tr>
 +
      <tr class='level0'><td>
 +
          <table>
 +
            <tr><td></td><td class='text'>/resin-profiler</td></tr>
 +
 +
          </table>
 +
        </td><td class='number'>&nbsp;</td><td class='number' title='totalTime=0.000 thisTime=0.000 childrenTime=0.000'>0.000</td><td class='number'>0</td></tr>
 +
    </table>
  
 
= Profiling databases =
 
= Profiling databases =
Line 77: Line 136:
 
   </database>
 
   </database>
  
 +
== View results ==
 +
 +
* Make a request that uses the database. for example http://localhost:8080/webapp/foo.php
 +
* View results http://localhost:8080/webapp/resin-profiler
 +
    <table>
 +
      <caption>Profiling Results for /webapp</caption>
 +
      <tr><th>Name</th><th>Average Time</th><th>Total Time</th><th>Invocation Count</th></tr>
 +
      <tr class='level0'><td>
 +
          <table>
 +
            <tr><td></td><td class='text'>/usedatabase.jsp</td></tr>
 +
          </table>
 +
 +
        </td><td class='number' title='totalTime=4.198 thisTime=1.458 childrenTime=2.739'>4.198</td><td class='number' title='totalTime=4.198 thisTime=1.458 childrenTime=2.739'>4.198</td><td class='number'>1</td></tr>
 +
      <tr class='level1'><td>
 +
          <table>
 +
            <tr><td>&nbsp;&nbsp;&rarr;</td><td class='text'>jdbc:postgresql://127.0.0.1:5432/test</td></tr>
 +
          </table>
 +
        </td><td class='number' title='totalTime=0.005 thisTime=0.001 childrenTime=0.003'>0.005</td><td class='number' title='totalTime=8.007 thisTime=2.739 childrenTime=5.268'>8.007</td><td class='number'>1579</td></tr>
 +
 +
      <tr class='level2'><td>
 +
          <table>
 +
            <tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&rarr;</td><td class='text'>INSERT INTO Address (ID, city, country, line1, line2, state, zip) VALUES (?, ?, ?, ?, ?, ?, ?)</td></tr>
 +
          </table>
 +
        </td><td class='number' title='totalTime=0.003 thisTime=0.003 childrenTime=0.000'>0.003</td><td class='number' title='totalTime=1.863 thisTime=1.863 childrenTime=0.000'>1.863</td><td class='number'>560</td></tr>
 +
      <tr class='level2'><td>
 +
          <table>
 +
 +
            <tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&rarr;</td><td class='text'>INSERT INTO Contact (ID, email, fax, mobile, phone) VALUES (?, ?, ?, ?, ?)</td></tr>
 +
          </table>
 +
        </td><td class='number' title='totalTime=0.003 thisTime=0.003 childrenTime=0.000'>0.003</td><td class='number' title='totalTime=1.262 thisTime=1.262 childrenTime=0.000'>1.262</td><td class='number'>420</td></tr>
 +
      <tr class='level2'><td>
 +
          <table>
 +
            <tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&rarr;</td><td class='text'>SELECT c.ID, c.address, c.comment, c.contact, c.customerType, c.name, c.url FROM Customer c WHERE (c.name = ?)</td></tr>
 +
 +
          </table>
 +
        </td><td class='number' title='totalTime=0.004 thisTime=0.004 childrenTime=0.000'>0.004</td><td class='number' title='totalTime=0.963 thisTime=0.963 childrenTime=0.000'>0.963</td><td class='number'>213</td></tr>
 +
      <tr class='level2'><td>
 +
          <table>
 +
            <tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&rarr;</td><td class='text'>INSERT INTO Customer (ID, address, comment, contact) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)</td></tr>
 +
          </table>
 +
        </td><td class='number' title='totalTime=0.002 thisTime=0.002 childrenTime=0.000'>0.002</td><td class='number' title='totalTime=0.499 thisTime=0.499 childrenTime=0.000'>0.499</td><td class='number'>187</td></tr>
 +
 +
      <tr class='level2'><td>
 +
          <table>
 +
            <tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&rarr;</td><td class='text'>SELECT Nextval(&apos;Address_cseq&apos;)</td></tr>
 +
          </table>
 +
        </td><td class='number' title='totalTime=0.088 thisTime=0.088 childrenTime=0.000'>0.088</td><td class='number' title='totalTime=0.176 thisTime=0.176 childrenTime=0.000'>0.176</td><td class='number'>2</td></tr>
 +
      <tr class='level2'><td>
 +
 +
          <table>
 +
            <tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&rarr;</td><td class='text'>SELECT CustomerType.ID, CustomerType.name FROM CustomerType CustomerType WHERE (CustomerType.name = ?)</td></tr>
 +
          </table>
 +
        </td><td class='number' title='totalTime=0.005 thisTime=0.005 childrenTime=0.000'>0.005</td><td class='number' title='totalTime=0.164 thisTime=0.164 childrenTime=0.000'>0.164</td><td class='number'>30</td></tr>
 +
 +
    </table>
  
 
= JMX =
 
= JMX =
  
 
The Profiler instantiates a [[JMX]] bean with type `Profiler'.
 
The Profiler instantiates a [[JMX]] bean with type `Profiler'.

Revision as of 06:28, 28 November 2005

Resin includes high level profiling capability for profiling requests and database conenctions.

Contents

Enabling the Profiler

 <web-app ...>
 
   <servlet-mapping servlet-class="com.caucho.profiler.ProfilerServlet" url-pattern="/resin-profiler">
     <init>
       <profiler enabled="true"/>
     </init>
     <load-on-startup/>
   </servlet-mapping>

Profiling requests

Request profiling gives insight into the time taken for requests from client browsers.

It imposes very little overhead and is suitable for production servers.

 <web-app ...>
 
   <filter filter-name="resin-profiler"
           filter-class="com.caucho.profiler.ProfilerFilter">
     <init use-query="false"/>
   </filter>
 
   <filter-mapping filter-name="resin-profiler" url-pattern="*">
     <dispatcher>REQUEST</dispatcher>
   </filter-mapping>

View Results


Profiling Results for /webapp
NameAverage TimeTotal TimeInvocation Count
/foo.jsp
1.7491.7491
/resin-profiler
 0.0000


Profiling sub-requests

Sub-request profiling adds profiling information for pages that are sub-requests of the top level request, typically with <jsp:include>, <jsp:forward>, or the equivalent mechanisms for Servlets.

It imposes a bit more overhead and may be suitable for production servers.

 <web-app ...>
 
   <filter filter-name="resin-profiler"
           filter-class="com.caucho.profiler.ProfilerFilter">
     <init use-query="false"/>
   </filter>
 
   <filter-mapping filter-name="resin-profiler" url-pattern="*">
     <dispatcher>REQUEST</dispatcher>
     <dispatcher>FORWARD</dispatcher>
     <dispatcher>INCLUDE</dispatcher>
     <dispatcher>ERROR</dispatcher>
   </filter-mapping>

View Results


Profiling Results for /webapp
NameAverage TimeTotal TimeInvocation Count
/foo.jsp
1.7491.7491
  →/baz.jsp
0.8630.8631
  →/bar.jsp
0.5750.5751
    →/bung.jsp
0.0600.0601
/resin-profiler
 0.0000

Profiling databases

The profiler-point directive is used in the database driver to configure profiling of database usage. Results are given for each unique sql statement or prepared statement.

Database profiling imposes more overhead than request profiling and should be used on production servers with care.

<database jndi-name="jdbc/caucho/crm">
   <driver>
     <type>org.postgresql.Driver</type>
     <url>jdbc:postgresql://127.0.0.1:5432/...</url>
     <user>...</user>
     <password>...</password>
 
     <profiler-point/>
   </driver>
 
   <spy/>
 </database>

View results

Profiling Results for /webapp
NameAverage TimeTotal TimeInvocation Count
/usedatabase.jsp
4.1984.1981
  →jdbc:postgresql://127.0.0.1:5432/test
0.0058.0071579
    →INSERT INTO Address (ID, city, country, line1, line2, state, zip) VALUES (?, ?, ?, ?, ?, ?, ?)
0.0031.863560
    →INSERT INTO Contact (ID, email, fax, mobile, phone) VALUES (?, ?, ?, ?, ?)
0.0031.262420
    →SELECT c.ID, c.address, c.comment, c.contact, c.customerType, c.name, c.url FROM Customer c WHERE (c.name = ?)
0.0040.963213
    →INSERT INTO Customer (ID, address, comment, contact) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
0.0020.499187
    →SELECT Nextval('Address_cseq')
0.0880.1762
    →SELECT CustomerType.ID, CustomerType.name FROM CustomerType CustomerType WHERE (CustomerType.name = ?)
0.0050.16430

JMX

The Profiler instantiates a JMX bean with type `Profiler'.

Personal tools