My back of the napkin sizing when I first started developing ESME was that a JVM with 4GB of heap could handle ~ 25,000 active users on a quad core opteron/xeon. Active is on average 1 post per 30 minutes with an average fan-out (followers) of 100 and peak fan-out of 2,500 (10% of the user population).
If this sizing seems reasonable, let's build further benchmarks around it. On Mon, Nov 23, 2009 at 2:29 AM, Richard Hirsch <[email protected]>wrote: > Thanks. > > Updated the wiki page. > > D. > > On Mon, Nov 23, 2009 at 11:21 AM, Markus Kohler <[email protected]> > wrote: > > Haven't checked all the details, but heap size was 1Gbyte. > > I need to define the recommended CM settings > > Markus > > > > On Nov 23, 2009 8:55 AM, "Richard Hirsch" <[email protected]> wrote: > > > > Hi, > > > > I just finished posting Markus' last analysis from his continuing > > performance tests: > > > http://cwiki.apache.org/confluence/display/ESME/Performance+test+-+2009-11-22 > > > > Very interesting results. > > > > @Markus: maybe you can check the wiki page to make sure my editing > > hasn't added any errors. > > > > Thanks. > > > > D. > > > -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Surf the harmonics
