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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