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 > > 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!!??
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
