On 9/1/2011 11:13 AM, Tony Anecito wrote:
What is your current response time and what did you have before?
My issue isn't response time, it's number of requests per second handled.
Are you using 64-bit java or 32-bit?
64-bit.
What is your heap settings?
The "Initial memory pool" in tomcat7w is 256, and the max is 512. Task
manager is only showing 145MB allocated. Do those numbers refer to the
heap? If not, then I don't know where to look for that.
Are you doing web services for these requests oris this straight html?
Straight html post, the app does some quick integrity checks and write
it to disk, then returns an "ok" response to the client.
Regards,
-Tony
--- On Thu, 9/1/11, David kerber<dcker...@verizon.net> wrote:
From: David kerber<dcker...@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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