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From Tony Anecito <adanec...@yahoo.com>
Subject Re: Performance for many small requests
Date Thu, 01 Sep 2011 15:13:10 GMT
What is your current response time and what did you have before?
Are you using 64-bit java or 32-bit?
What is your heap settings?
Are you doing web services for these requests oris this straight html?

Regards,
-Tony

--- On Thu, 9/1/11, David kerber <dckerber@verizon.net> wrote:

> From: David kerber <dckerber@verizon.net>
> Subject: Re: Performance for many small requests
> To: "Tomcat Users List" <users@tomcat.apache.org>
> Date: Thursday, September 1, 2011, 8:40 AM
> On 8/31/2011 12:25 PM, Tony Anecito
> wrote:
> > Hi David,
> > 
> > You need to not only look at the container but it's
> configuration and the jre that is being used. There have
> been a lot of improvements in all areas for performance.
> Also, understand the servlet model seems developers have
> completely forgotten about it and how important it is.
> > Also, I always revaluate my design/implementation
> every 6 months or so and make changes based on lessons
> learned. Also, do not be afraid to try something new :]
> 
> I'm running JRE 6_27, in server mode, on windows server
> 2008 with 4 cores, 8GB RAM.  TC 7.0.20, downloaded
> yesterday.
> 
> I'm having some somewhat minor performance issues, not
> performing quite as well as my Win2k machine with TC
> 5.5.  Could somebody look at my server.xml and
> recommend some tweaks for handling tons of very small
> requests, <150 bytes per request.  The requests are
> sent with a single http post, from ~600 remote sites
> collecting data every few seconds to minutes.
> 
> Would one of the thread pools help this situation?
> 
> 
> <Server port="8005" shutdown="SHUTDOWN">
>   <Listener
> className="org.apache.catalina.core.AprLifecycleListener"
> SSLEngine="on" />
> 
>   <Listener
> className="org.apache.catalina.core.JasperListener" />
> 
>   <Listener
> className="org.apache.catalina.core.JreMemoryLeakPreventionListener"
> />
> 
>   <Listener
> className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"
> />
> 
>   <Listener
> className="org.apache.catalina.core.ThreadLocalLeakPreventionListener"
> />
> 
>   <GlobalNamingResources>
>     <Resource name="UserDatabase"
> auth="Container"
>              
> type="org.apache.catalina.UserDatabase"
>              
> description="User database that can be updated and saved"
>          
>    factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
>              
> pathname="conf/tomcat-users.xml" />
>   </GlobalNamingResources>
> 
>   <Service name="Catalina">
> 
>     <!--
>     <Executor name="tomcatThreadPool"
> namePrefix="catalina-exec-"
>         maxThreads="300"
> minSpareThreads="4"/>
>     -->
>     <Connector port="1024"
>     protocol="HTTP/1.1"
>         connectionTimeout="20000"
>         redirectPort="8443"
>     maxThreads="600"
>     acceptCount="100"
>     minSpareThreads="10"
>     socketBuffer="16384"
>     />
> 
>     <!--
>     <Connector executor="tomcatThreadPool"
>            
>    port="8080" protocol="HTTP/1.1"
>            
>    connectionTimeout="10000"
>            
>    redirectPort="8443" />
>     -->
> 
>     <Connector port="8009" protocol="AJP/1.3"
> redirectPort="8443" />
> 
>     <Engine name="Catalina"
> defaultHost="localhost">
> 
> 
>       <Realm
> className="org.apache.catalina.realm.LockOutRealm">
>         <Realm
> className="org.apache.catalina.realm.UserDatabaseRealm"
>            
>    resourceName="UserDatabase"/>
>       </Realm>
> 
>       <Host name="localhost" 
> appBase="webapps"
>             unpackWARs="true"
> autoDeploy="true">
> 
>       </Host>
>     </Engine>
>   </Service>
> </Server>
> 
> 
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