A first look at V3 Performance

For most of the year, I've been working on session replication code for Sailfin. When I came back to work with the Glassfish performance team, I found that we had some pretty aggressive goals around performance, particularly considering that Glassfish V3 had a completely new architecture, was a major rewrite of major sections of code, and implements the new Java EE 6 specification. Glassfish V3 in those terms is essentially a .0 release, and I was convinced we'd see major performance regressions from the excellent performance we achieved with Glassfish V2. Color me surprised; in the end, we met or exceeded all of our goals for V3 performance. For the most part, our performance tests are based on customer applications, industry benchmarks, and other proprietary code that we can't open source (nor share results of). But I can discuss some of those tests, and in this blog we'll look at our first set of sanity tests. These test the basic servlet operations of the web container; we'll look at three such tests: HelloServlet -- the "Hello, world" of servlets; it simply prints out 4 lines of HTML in response to each request, incrementing a global counter to keep track of the total number of requests. HelloServletBeanJsp -- that same servlet, but now for each call it instantiates a simple JavaBean and then forwards the request (and bean) to a JSP page (i.e., the standard MVC model for servlets) HelloSessions -- the...

Date: March, 24 2010
Url: http://www.java.net/blog/sdo/archive/2009/12/08/first-look-v3-performance

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