Y axis is time to build the FST (ie, smaller is better), and X axis is iteration?
1.6 and 1.7 are very close, but JRockit is much slower except for iteration #2 where it's nearly the same. Scary how hotspot can be so wrong so "randomly". Mike McCandless http://blog.mikemccandless.com On Mon, Jul 25, 2011 at 5:18 PM, Dawid Weiss <dawid.we...@gmail.com> wrote: > I am preparing an unrelated presentation to which I needed something > that crunches lots of data and uses some cpu cycles. I decided to run > FST construction on that half-gig wikipedia file. Three jits: 1.6_u26, > 1.7 pre-release and jrockit (newest available). The results are > interesting (although not by any means indicative of the advantages of > each vm, as I only did it on a single machine and with only 5 reps per > vm): 1.6_u26 is ahead of 1.7, but watch what happens with the timing > of jrockit (no, the bumps are not caused by background activity). I'm > guessing the optimizer picking wrong paths and unable to revert, but > who the hell knows these days... > > Dawid > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org > For additional commands, e-mail: dev-h...@lucene.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
