OK I'll make this change soon and reply back. Mike McCandless
http://blog.mikemccandless.com On Fri, Apr 26, 2019 at 10:17 AM David Smiley <david.w.smi...@gmail.com> wrote: > +1 to choose the Parallel Collector temporarily as Uwe suggests so we can > see distinct effects of the separate changes. > > I suppose the benchmarks should continue to prefer the default JVM > settings, as it is how users will consume Lucene. > > ~ David Smiley > Apache Lucene/Solr Search Developer > http://www.linkedin.com/in/davidwsmiley > > > On Thu, Apr 25, 2019 at 6:03 PM Uwe Schindler <u...@thetaphi.de> wrote: > >> 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 >> >
