For what I could gather and after 2012 bug fixed on the Linux kernel for NUMA it is safe and profitable to use NUMA, though I'm not fully aware if G1GC is NUMA-aware, at least JVM is not complaining about it:
- http://docs.oracle.com/javase/8/docs/technotes/guides/vm/performance-enhancements-7.html I also learned that Eden and Young Generation for G1GC are adjusted by the max pause in millis target hence I got mine to a low value to avoid full GC. Some options are on by default specially in Java 8 like *TieredCompilation* if you specify -server, etc. Remember the GC I/O bug (http://www.evanjones.ca/jvm-mmap-pause.html) while writing stats to */tmp/hsperfdata_${user}* which it can be resolved with either of the following options: - Map /tmp to RAM - Disable writing of stats which is OK for production but tools like VisualVM won't automatically discover your JVM. New fill listing of GC settings: -server -Xms256m -Xmx256m -XX:+UseNUMA -XX:+UseG1GC -XX:+AlwaysPreTouch -XX:MaxGCPauseMillis=10 -XX:+PerfDisableSharedMem -XX:+ParallelRefProcEnabled Enjoy, Guido. -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
