Maybe do this temporary, to not have 2 changes at the same time. Uwe
Am April 25, 2019 9:48:35 PM UTC schrieb Michael McCandless <luc...@mikemccandless.com>: >Yeah I'm just using the JDK's default in the nightly benchmarks. > >Should I override back to the parallel collector? > >Mike McCandless > >http://blog.mikemccandless.com > > >On Thu, Apr 25, 2019 at 5:44 PM Uwe Schindler <u...@thetaphi.de> wrote: > >> Hi, >> >> I am not sure how Mike's benchmarks are setup and if he chooses a >specific >> garbage collector. >> >> Java 8 defaults to ParallelGC, Java 11 defaults to G1, which may slow >down >> up to 10% as it is not optimized for throughput. >> >> So to compare you gave to be specific in your GC choices. >> >> Uwe >> >> Am April 25, 2019 5:57:16 PM UTC schrieb Nicholas Knize ><nkn...@gmail.com >> >: >>> >>> Earlier this week I noticed a significant across the board >performance >>> regression on the nightly geo benchmarks >>> <https://home.apache.org/~mikemccand/geobench.html>. It appears this >>> regression can also be seen on other lucene benchmarks >>> <https://home.apache.org/~mikemccand/lucenebench/SloppyPhrase.html> >and >>> appears to correspond to the upgrade to JDK 11. >>> >>> Any thoughts? >>> >>> Nicholas Knize, Ph.D., GISP >>> Geospatial Software Guy | Elasticsearch >>> Apache Lucene PMC Member and Committer >>> nkn...@apache.org >>> >> >> -- >> Uwe Schindler >> Achterdiek 19, 28357 Bremen >> https://www.thetaphi.de >> -- Uwe Schindler Achterdiek 19, 28357 Bremen https://www.thetaphi.de
