Re: [Freeipa-users] Freeipa on ARM (raspberry pi) - OpenJDK vs. Oracle JDK
My guess aligns with this response: http://stackoverflow.com/questions/31153584/why-is-there-such-a-performance-difference-on-raspberry-pi-between-open-and-orac Bryce From: freeipa-users-boun...@redhat.com [mailto:freeipa-users-boun...@redhat.com] On Behalf Of Winfried de Heiden Sent: Thursday, December 01, 2016 1:08 AM To: freeipa-users@redhat.com Subject: [Freeipa-users] Freeipa on ARM (raspberry pi) - OpenJDK vs. Oracle JDK Hi all, Started as "just because it's possible" running FreeIPA on a BananaPI or Raspberry PI turned to out to be rather succesfull and for more than a year I use FreeIPA at home. OK, running on small boards like Raspberry PI it never will be fast but it's surely quick enough to run at small scale. However, starting FreeIPA became much slower since Fedora 24 and even more on Fedora 25. Since Oracle Java is also available for ARM and there's much written this is much faster I took some time for an experiment. Starting FreeIPA using the default installation (running OpenJDK) starting FreeIPA takes a painfull 15 minutes (afterward, it all just works fine): [root@rpi2 sysconfig]# time ipactl start Starting Directory Service Starting krb5kdc Service Starting kadmin Service Starting named Service Starting ipa_memcached Service Starting httpd Service Starting ipa-custodia Service Starting ntpd Service Starting pki-tomcatd Service Starting ipa-otpd Service Starting ipa-dnskeysyncd Service ipa: INFO: The ipactl command was successful real15m40.638s user0m33.095s sys0m1.910s Now, after installing Oracle Java and changing JAVA_HOME in /etc/sysconfig/pki-tomcat to: #JAVA_HOME="/usr/lib/jvm/jre-1.8.0-openjdk" JAVA_HOME="/opt/jdk1.8.0_111/jre" [root@rpi2 sysconfig]# time ipactl start Starting Directory Service Starting krb5kdc Service Starting kadmin Service Starting named Service Starting ipa_memcached Service Starting httpd Service Starting ipa-custodia Service Starting ntpd Service Starting pki-tomcatd Service Starting ipa-otpd Service Starting ipa-dnskeysyncd Service ipa: INFO: The ipactl command was successful real2m14.823s user0m33.400s sys0m1.730s Wow, I expected some improvement, but this far better than expected! This leaves a question: what is happening here!!?? I prefer to use OpenJDK, it 's Open Source and because it's availabe from the Fedora ARM repositories it is also much more easy to update. But for now, Oracle is much faster and OpenJDK from this point of view is a very poor alternative. Why is OpenJDK so much slower? Is improvement possible? For now (some "tweaking") of in a future release? For the record, I tested these Java versions: [root@rpi2 sysconfig]# /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-3.b16.fc25.arm/jre/bin/java -version openjdk version "1.8.0_111" OpenJDK Runtime Environment (build 1.8.0_111-b16) OpenJDK Zero VM (build 25.111-b16, interpreted mode) [root@rpi2 sysconfig]# /opt/jdk1.8.0_111/jre/bin/java -version java version "1.8.0_111" Java(TM) SE Runtime Environment (build 1.8.0_111-b14) Java HotSpot(TM) Client VM (build 25.111-b14, mixed mode) Kind regards, Winfried This electronic message contains information generated by the USDA solely for the intended recipients. Any unauthorized interception of this message or the use or disclosure of the information it contains may violate the law and subject the violator to civil or criminal penalties. If you believe you have received this message in error, please notify the sender and delete the email immediately. -- Manage your subscription for the Freeipa-users mailing list: https://www.redhat.com/mailman/listinfo/freeipa-users Go to http://freeipa.org for more info on the project
Re: [Freeipa-users] Freeipa on ARM (raspberry pi) - OpenJDK vs. Oracle JDK
Hi all, Bugzilla created: https://bugzilla.redhat.com/show_bug.cgi?id=1400462 Winfried Op 01-12-16 om 09:19 schreef Petr Spacek: On 1.12.2016 09:07, Winfried de Heiden wrote: Hi all, Started as "just because it's possible" running FreeIPA on a BananaPI or Raspberry PI turned to out to be rather succesfull and for more than a year I use FreeIPA at home. OK, running on small boards like Raspberry PI it never will be fast but it's surely quick enough to run at small scale. However, starting FreeIPA became much slower since Fedora 24 and even more on Fedora 25. Since Oracle Java is also available for ARM and there's much written this is much faster I took some time for an experiment. Starting FreeIPA using the default installation (running OpenJDK) starting FreeIPA takes a painfull 15 minutes (afterward, it all just works fine): [root@rpi2 sysconfig]# time ipactl start Starting Directory Service Starting krb5kdc Service Starting kadmin Service Starting named Service Starting ipa_memcached Service Starting httpd Service Starting ipa-custodia Service Starting ntpd Service Starting pki-tomcatd Service Starting ipa-otpd Service Starting ipa-dnskeysyncd Service ipa: INFO: The ipactl command was successful real15m40.638s user0m33.095s sys0m1.910s Now, after installing Oracle Java and changing JAVA_HOME in /etc/sysconfig/pki-tomcat to: #JAVA_HOME="/usr/lib/jvm/jre-1.8.0-openjdk" JAVA_HOME="/opt/jdk1.8.0_111/jre" [root@rpi2 sysconfig]# time ipactl start Starting Directory Service Starting krb5kdc Service Starting kadmin Service Starting named Service Starting ipa_memcached Service Starting httpd Service Starting ipa-custodia Service Starting ntpd Service Starting pki-tomcatd Service Starting ipa-otpd Service Starting ipa-dnskeysyncd Service ipa: INFO: The ipactl command was successful real2m14.823s user0m33.400s sys0m1.730s Wow, I expected some improvement, but this far better than expected! This leaves a question: what is happening here!!?? Huh? That is really huge difference. Please open a bug against OpenJDK: https://bugzilla.redhat.com/enter_bug.cgi That way it will reach OpenJDK developers. They will have better idea than FreeIPA developers, I guess. Please report the bug number to this forum so we can track it as well. Thank you very much! Petr^2 Spacek I prefer to use OpenJDK, it 's Open Source and because it's availabe from the Fedora ARM repositories it is also much more easy to update. But for now, Oracle is much faster and OpenJDK from this point of view is a very poor alternative. Why is OpenJDK so much slower? Is improvement possible? For now (some "tweaking") of in a future release? For the record, I tested these Java versions: [root@rpi2 sysconfig]# /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-3.b16.fc25.arm/jre/bin/java -version openjdk version "1.8.0_111" OpenJDK Runtime Environment (build 1.8.0_111-b16) OpenJDK Zero VM (build 25.111-b16, interpreted mode) [root@rpi2 sysconfig]# /opt/jdk1.8.0_111/jre/bin/java -version java version "1.8.0_111" Java(TM) SE Runtime Environment (build 1.8.0_111-b14) Java HotSpot(TM) Client VM (build 25.111-b14, mixed mode) Kind regards, Winfried -- Manage your subscription for the Freeipa-users mailing list: https://www.redhat.com/mailman/listinfo/freeipa-users Go to http://freeipa.org for more info on the project
Re: [Freeipa-users] Freeipa on ARM (raspberry pi) - OpenJDK vs. Oracle JDK
On 1.12.2016 09:07, Winfried de Heiden wrote: > Hi all, > > Started as "just because it's possible" running FreeIPA on a BananaPI or > Raspberry PI turned to out to be rather succesfull and for more than a year I > use FreeIPA at home. > > OK, running on small boards like Raspberry PI it never will be fast but it's > surely quick enough to run at small scale. However, starting FreeIPA became > much > slower since Fedora 24 and even more on Fedora 25. > Since Oracle Java is also available for ARM and there's much written this is > much faster I took some time for an experiment. > > Starting FreeIPA using the default installation (running OpenJDK) starting > FreeIPA takes a painfull 15 minutes (afterward, it all just works fine): > > [root@rpi2 sysconfig]# time ipactl start > Starting Directory Service > Starting krb5kdc Service > Starting kadmin Service > Starting named Service > Starting ipa_memcached Service > Starting httpd Service > Starting ipa-custodia Service > Starting ntpd Service > Starting pki-tomcatd Service > Starting ipa-otpd Service > Starting ipa-dnskeysyncd Service > ipa: INFO: The ipactl command was successful > > real15m40.638s > user0m33.095s > sys0m1.910s > > Now, after installing Oracle Java and changing JAVA_HOME in > /etc/sysconfig/pki-tomcat to: > > #JAVA_HOME="/usr/lib/jvm/jre-1.8.0-openjdk" > JAVA_HOME="/opt/jdk1.8.0_111/jre" > > [root@rpi2 sysconfig]# time ipactl start > Starting Directory Service > Starting krb5kdc Service > Starting kadmin Service > Starting named Service > Starting ipa_memcached Service > Starting httpd Service > Starting ipa-custodia Service > Starting ntpd Service > Starting pki-tomcatd Service > Starting ipa-otpd Service > Starting ipa-dnskeysyncd Service > ipa: INFO: The ipactl command was successful > > real2m14.823s > user0m33.400s > sys0m1.730s > > Wow, I expected some improvement, but this far better than expected! This > leaves > a question: what is happening here!!?? Huh? That is really huge difference. Please open a bug against OpenJDK: https://bugzilla.redhat.com/enter_bug.cgi That way it will reach OpenJDK developers. They will have better idea than FreeIPA developers, I guess. Please report the bug number to this forum so we can track it as well. Thank you very much! Petr^2 Spacek > > I prefer to use OpenJDK, it 's Open Source and because it's availabe from the > Fedora ARM repositories it is also much more easy to update. But for now, > Oracle > is much faster and OpenJDK from this point of view is a very poor alternative. > Why is OpenJDK so much slower? Is improvement possible? For now (some > "tweaking") of in a future release? > > For the record, I tested these Java versions: > > [root@rpi2 sysconfig]# > /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-3.b16.fc25.arm/jre/bin/java -version > openjdk version "1.8.0_111" > OpenJDK Runtime Environment (build 1.8.0_111-b16) > OpenJDK Zero VM (build 25.111-b16, interpreted mode) > > [root@rpi2 sysconfig]# /opt/jdk1.8.0_111/jre/bin/java -version > java version "1.8.0_111" > Java(TM) SE Runtime Environment (build 1.8.0_111-b14) > Java HotSpot(TM) Client VM (build 25.111-b14, mixed mode) > > > Kind regards, > > Winfried > > > -- Petr^2 Spacek -- Manage your subscription for the Freeipa-users mailing list: https://www.redhat.com/mailman/listinfo/freeipa-users Go to http://freeipa.org for more info on the project
[Freeipa-users] Freeipa on ARM (raspberry pi) - OpenJDK vs. Oracle JDK
Hi all, Started as "just because it's possible" running FreeIPA on a BananaPI or Raspberry PI turned to out to be rather succesfull and for more than a year I use FreeIPA at home. OK, running on small boards like Raspberry PI it never will be fast but it's surely quick enough to run at small scale. However, starting FreeIPA became much slower since Fedora 24 and even more on Fedora 25. Since Oracle Java is also available for ARM and there's much written this is much faster I took some time for an experiment. Starting FreeIPA using the default installation (running OpenJDK) starting FreeIPA takes a painfull 15 minutes (afterward, it all just works fine): [root@rpi2 sysconfig]# time ipactl start Starting Directory Service Starting krb5kdc Service Starting kadmin Service Starting named Service Starting ipa_memcached Service Starting httpd Service Starting ipa-custodia Service Starting ntpd Service Starting pki-tomcatd Service Starting ipa-otpd Service Starting ipa-dnskeysyncd Service ipa: INFO: The ipactl command was successful real 15m40.638s user 0m33.095s sys 0m1.910s Now, after installing Oracle Java and changing JAVA_HOME in /etc/sysconfig/pki-tomcat to: #JAVA_HOME="/usr/lib/jvm/jre-1.8.0-openjdk" JAVA_HOME="/opt/jdk1.8.0_111/jre" [root@rpi2 sysconfig]# time ipactl start Starting Directory Service Starting krb5kdc Service Starting kadmin Service Starting named Service Starting ipa_memcached Service Starting httpd Service Starting ipa-custodia Service Starting ntpd Service Starting pki-tomcatd Service Starting ipa-otpd Service Starting ipa-dnskeysyncd Service ipa: INFO: The ipactl command was successful real 2m14.823s user 0m33.400s sys 0m1.730s Wow, I expected some improvement, but this far better than expected! This leaves a question: what is happening here!!?? I prefer to use OpenJDK, it 's Open Source and because it's availabe from the Fedora ARM repositories it is also much more easy to update. But for now, Oracle is much faster and OpenJDK from this point of view is a very poor alternative. Why is OpenJDK so much slower? Is improvement possible? For now (some "tweaking") of in a future release? For the record, I tested these Java versions: [root@rpi2 sysconfig]# /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-3.b16.fc25.arm/jre/bin/java -version openjdk version "1.8.0_111" OpenJDK Runtime Environment (build 1.8.0_111-b16) OpenJDK Zero VM (build 25.111-b16, interpreted mode) [root@rpi2 sysconfig]# /opt/jdk1.8.0_111/jre/bin/java -version java version "1.8.0_111" Java(TM) SE Runtime Environment (build 1.8.0_111-b14) Java HotSpot(TM) Client VM (build 25.111-b14, mixed mode) Kind regards, Winfried -- Manage your subscription for the Freeipa-users mailing list: https://www.redhat.com/mailman/listinfo/freeipa-users Go to http://freeipa.org for more info on the project
