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To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: Tomcat vs IIS download speed - configuration suggestions?
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On 1/10/2013 8:56 AM, Linoma DevTeam wrote:
> Hi everyone,
>
> I'm running some comparison tests with tomcat 6.0.35 and IIS running in
> parallel on Windows Server 2008 R2.  Now I would expect Tomcat to be
> somewhat slower, given the extra JVM layer, but in some situations, i'm
> seeing differences that are tough to swallow.

Are you using tcnative?


>
> Downloads
> IIS         ~3.7 MB/s
> Tomcat  ~350 KB/s
>
> Test Details:
> I placed a ~500MB file in the document root of the web app on tomcat and
> set up an HTTPS connector.  Then I set up IIS with the same file and an
> HTTPS listener.  I configured the cipher suite in tomcat to be the same one
> that was negotiated between IIS and my Chrome browser.  Finally, I set the
> JVM max memory to 1024MB with a min of 900MB to reduce the impact of the GC
> and the memory allocation.
>
> I'm using HTTP/1.1 connectors with pretty standard configuration:
>
> <Server port="9005" shutdown="SHUTDOWN">
>
> <Service name="admin">
> <Connector port="9080" />
>
> <Connector port="9443" protocol="HTTP/1.1"
> SSLEnabled="true" enableLookups="false" disableUploadTimeout="true"
> scheme="https" secure="true" clientAuth="false" sslProtocol="TLS"
> algorithm="SunX509" keystoreFile="C:\temp\sample_keystore.jks"
> keystorePass="password" keyAlias="sample-key" keystoreType="JKS"
> truststoreFile="C:\temp\sample_truststore.jks" truststorePass="password"
> truststoreType="JKS" />
>
> <Engine name="admin" defaultHost="localhost">
> <Host name="localhost" appBase="webapps"
> errorReportValveClass="com.company.CustomErrorReportValve">
> <Context path="/sample" docBase="C:\temp\application\WebRoot"
> reloadable="false">
> <Loader delegate="true" />
> </Context>
> </Host>
> </Engine>
> </Service>
> </Server>
>
> So, I extend the question of, why would tomcat only be able to reach 10% of
> the speed IIS is able to server when running parallel tests?  Any
> suggestions on configurations that I could adjust on Tomcat, the JVM, or
> operating system that improve that download speed?
>
> Thanks in advance!
>


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