[jboss-jira] [JBoss JIRA] (WFWIP-160) Fix throughput and response time differences between TLS 1.2 and TLS 1.3

[Richard Opalka (Jira)]

    [ https://issues.jboss.org/browse/WFWIP-160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13802333#comment-13802333 ] 

Richard Opalka commented on WFWIP-160:
--------------------------------------

I cannot reproduce this problem [~fjuma].
On my laptop TLS 1.3 is almost twice as fast as TLS 1.2.
My configuration is:

$>java -version
java version "11.0.4" 2019-07-16 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.4+10-LTS)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.4+10-LTS, mixed mode)

$>uname -a
Linux blackhole 5.3.6-200.fc30.x86_64 #1 SMP Mon Oct 14 13:11:01 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

https://github.com/ropalka/wildfly-elytron/tree/FJUMA-ELY-1706
https://github.com/ropalka/wildfly-core/tree/FJUMA-WFCORE-4172
https://github.com/ropalka/wildfly/tree/FJUMA-WFCORE-4172

> Fix throughput and response time differences between TLS 1.2 and TLS 1.3
> ------------------------------------------------------------------------
>
>                 Key: WFWIP-160
>                 URL: https://issues.jboss.org/browse/WFWIP-160
>             Project: WildFly WIP
>          Issue Type: Task
>          Components: Web (Undertow)
>            Reporter: Farah Juma
>            Assignee: Richard Opalka
>            Priority: Blocker
>
> Performance with TLS 1.3 on WildFly appears to be worse than with TLS 1.2. In particular, throughput is much lower (roughly three times lower) and response time is much higher (roughly three times higher), which is not supposed to be the case. The underlying issue seems to be in Undertow or XNIO, that is the code that actually gets invoked during the TLS handshake process. Looking at CPU time, there is significantly more time being spent in [io.undertow.protocols.ssl.SslConduit$5.run()|https://github.com/undertow-io/undertow/blob/master/core/src/main/java/io/undertow/protocols/ssl/SslConduit.java#L1070-L1103] with TLS 1.3 than with TLS 1.2.
> Steps to reproduce (taken from EAP7-1022):
> 1. Build WildFly using the following feature branches or download a QE build of WildFly [here|https://eap-qe-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/job/undertow-custom-server-build/53/artifact/wildfly/dist/target/wildfly-17.0.0.Beta1-SNAPSHOT.zip]:
> https://github.com/fjuma/wildfly-elytron/tree/ELY-1706
> https://github.com/fjuma/wildfly-core/tree/WFCORE-4172 (Update the Elytron version in the pom.xml file to use the version built in the previous step)
> https://github.com/fjuma/wildfly/tree/WFCORE-4172 (Update the Core version in the pom.xml file to use the version built in the previous step)
> 2. Download and unzip JMeter from https://jmeter.apache.org/download_jmeter.cgi
> 3. Download attached test plan [TLSv1.3.jmx|https://issues.jboss.org/secure/attachment/12449098/12449098_TLSv1.3.jmx]
> 4. Configure and start server with TLSv1.3 and JDK 11:
> {code}
> connect
> /subsystem=elytron/key-store=tls13:add(path=keystore.jks,relative-to=jboss.server.config.dir,credential-reference={clear-text=secret},type=JKS)
> /subsystem=elytron/key-store=tls13:generate-key-pair(alias=localhost,algorithm=RSA,key-size=1024,validity=365,credential-reference={clear-text=secret},distinguished-name="CN=localhost")
> /subsystem=elytron/key-store=tls13:store()
> /subsystem=elytron/key-manager=tls13:add(key-store=tls13,credential-reference={clear-text=secret})
> /subsystem=elytron/server-ssl-context=tls13:add(key-manager=tls13,protocols=["TLSv1.3"])
> batch
> /subsystem=undertow/server=default-server/https-listener=https:undefine-attribute(name=security-realm)
> /subsystem=undertow/server=default-server/https-listener=https:write-attribute(name=ssl-context,value=tls13)
> run-batch
> reload
> {code}
> 5. Start jmeter with JDK 11 and downloaded test plan
> {code}
> export JAVA_HOME=/path/to/java/openjdk-11.0.2; bin/jmeter -n -t TLSv1.3.jmx -e -l tlsv13.log -o results-tlsv13
> {code}
> 6. Set server to use TLSv1.2
> {code}
> /subsystem=elytron/server-ssl-context=tls13:write-attribute(name=protocols,value=["TLSv1.2"])
> reload
> {code}
> 7. Repeat same for TLSv1.2
> {code}
> export JAVA_HOME=/path/to/java/openjdk-11.0.2; bin/jmeter -n -t TLSv1.3.jmx -e -l tlsv12.log -o results-tlsv12
> {code}
> 8. Compare results (there will be an index.html file in the results-tlsv12 and results-tlsv13 directories)



--
This message was sent by Atlassian Jira
(v7.13.8#713008)