Jeff Wu <wuhai...@gmail.com> wrote: > By staying with IBM JVM, anyone has recommendations on this ? The general > average heap usage in our solr server is around 26G so we'd like to stay > with 32G max heap, but want to better tune the JVM to have less global gc > pause.
I am not sure if the IBM JVM works the same as the Oracle one in this aspect, but for the Oracle one, it is important to set Xmx _below_ 32GB instead of at exactly 32GB: https://blog.codecentric.de/en/2014/02/35gb-heap-less-32gb-java-jvm-memory-oddities/ You might want to try the program at that page to check where the IBM limit is. - Toke Eskildsen
