But that link does not tell me which on you are using? You are listing like 4 versions on your site.
Also, what did it fix? Pause times? Any other words of wisdom ? On Tue, Jul 30, 2013 at 9:01 PM, Shawn Heisey <s...@elyograg.org> wrote: > On 7/30/2013 6:59 PM, Roman Chyla wrote: > > I have been wanting some tools for measuring performance of SOLR, similar > > to Mike McCandles' lucene benchmark. > > > > so yet another monitor was born, is described here: > > http://29min.wordpress.com/2013/07/31/measuring-solr-query-performance/ > > > > I tested it on the problem of garbage collectors (see the blogs for > > details) and so far I can't conclude whether highly customized G1 is > better > > than highly customized CMS, but I think interesting details can be seen > > there. > > > > Hope this helps someone, and of course, feel free to improve the tool and > > share! > > I have a CMS config that's even more tuned than before, and it has made > things MUCH better. This new config is inspired by more info that I got > on IRC: > > http://wiki.apache.org/solr/ShawnHeisey#GC_Tuning > > The G1 customizations in your blog post don't look like they are really > G1-specific - they may be useful with CMS as well. This statement also > applies to some of the CMS parameters, so I would use those with G1 as > well for any testing. > > UseNUMA looks interesting for machines that actually are NUMA. All the > information that I can find says it is only for the throughput > (parallel) collector, so it's probably not doing anything for G1. > > The pause parameters you've got for G1 are targets only. It will *try* > to stick within those parameters, but if a collection requires more than > 50 milliseconds or has to happen more often than once a second, the > collector will ignore what you have told it. > > Thanks, > Shawn > > -- Bill Bell billnb...@gmail.com cell 720-256-8076
