On 10 Jan 2013, at 20:20, Daniel Mikusa <dmik...@vmware.com> wrote: > On Jan 10, 2013, at 3:10 PM, Linoma DevTeam wrote: > >> Thank you everyone for the responses/suggestions. >> >> I did ensure that those were the same during the tests, but had removed >> that from the server.xml before sending. Both servers had negotiated the >> equivalent of TLS_RSA_WITH_AES_128_CBC_SHA with the client during testing. >> >> Also, i've verified the JVM is in server mode, and I'm currently using >> 1.6.0_14. > > This is pretty old, you might also try the latest 1.6.0_x release and/or the > latest 17.0_x release. Those could have some performance improvements which > would narrow the gap.
+1 Don't underestimate the impact of that. p > Dan > > >> >> At times i can hit increased speeds of 10.8MB/s for IIS (about as fast as >> this server's network card can handle), with tomcat running close to 7.8 >> MB/s. (I'm just thinking out loud here) Assuming this is a normal >> difference with tomcat running at 72% the speed of IIS, and if the system >> was congested to the point of slowing down the downloads from the servers, >> then I would expect tomcat to run at 2.5 MB/s if IIS was serving files at >> 3.5 MB/s. It however looks like tomcat is serving data at a consistent 3.0 >> MB/s slower than IIS (not percentage based), which is why i saw 350 KB/s >> against the 3.5 MB/s from IIS? >> >> Anyway, I will try the APR connector and let you know. Thanks again for >> your comments! >> >> On Thu, Jan 10, 2013 at 8:31 AM, David kerber <dcker...@verizon.net> wrote: >> >>> 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. >>> >>> What JVM are you running under? Is it running the client or server >>> version? I've found huge performance improvements in some kind of >>> operations under a server JVM compared to client ones. >>> >>> >>> D >>> >>> >>> >>>> 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! >>> >>> ------------------------------**------------------------------**--------- >>> To unsubscribe, e-mail: >>> users-unsubscribe@tomcat.**apache.org<users-unsubscr...@tomcat.apache.org> >>> For additional commands, e-mail: users-h...@tomcat.apache.org > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
