Re: [infinispan-dev] introducing an artificial network delay

Sanne Grinovero wrote: > Hello, > I'm running some performance tests; my goal is to alter the code for > the Lucene Directory to use optimal batching and Flags, but to make > sure I'm improving performance for DIST and REPL configurations the > only option I'm having is to run it on a real cluster, which is not > doable right now. > > So as I'm running tests on my laptop, network IO is not real and I > suppose it's not representative of real life bottlenecks. > > Is there some option I could set in the jgroups configuration to > introduce an arbitrary delay, Yes, DELAY ! :-) Options in_delay and out_delay add some ms to every incoming or outgoing message. Take a look at the code, DELAY is only ~ 80 lines, so you could also write your own, which introduces varying delays. > or even some degree of random packet losses? Yes, DISCARD ! Use 'up' and 'down' to introduce random discards, e.g. DISCARD up=".4" means that 40% of incoming messages are discarded.

-- Bela Ban Lead JGroups / Clustering Team JBoss _______________________________________________ infinispan-dev mailing list infinispan-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/infinispan-dev