I thought he said he was running 2.4.3 w/ Embedded Catalina... Is there a way to run that config in non-optimized mode?
> From: "marc fleury" <[EMAIL PROTECTED]> > Date: Tue, 27 Nov 2001 14:33:56 -0500 > To: <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> > Subject: RE: [JBoss-user] Redux of Performance Issues > > look dude, > > get the integrated jboss-tomcat stack you are running non-optimized out of > stack, period. > > come back when you have set it up, or don't we don't care, > > marcf > > |-----Original Message----- > |From: [EMAIL PROTECTED] > |[mailto:[EMAIL PROTECTED]]On Behalf Of > |[EMAIL PROTECTED] > |Sent: Tuesday, November 27, 2001 2:09 PM > |To: [EMAIL PROTECTED] > |Subject: [JBoss-user] Redux of Performance Issues > | > | > |For reasons unknown, this message hasn't been going out to the > |list. Trying > |again. > | > |-- > | > |Okay, I've clearly managed to piss off a few people by my concerns about > |JBoss performance. > | > |Let me start out by saying that I'd be more than happy to get my > |application > |working speedily under JBoss. Orion's documentation is poor at best, and > |JBoss is fully open-source. I have a great deal of respect for some of > |JBoss's technology (the verifier and deployer are probably the best I've > |seen), and where it's coming from. I chose JBoss for the initial > |development because of its reputation and my own interests. > | > |That said, if the performance I'm getting out of JBoss is the best I can > |expect, or, at least, the best I can manage to get, then I > |absolutely cannot > |use it. Not because I think it 'sucks rocks', because it doesn't, but > |simply because it will not support the user load I need it to in > |any sort of > |cost-effective manner. Some of you would probably be just as happy to see > |me go somewhere else, from the tone of your emails, but I'd personally > |rather find a way to get the performance out of JBoss, for this or other > |projects. > | > |And, ultimately, it seems as if the performance I'm asking for is > |relatively > |reasonable. I expect a certain amount of overhead in EJB performance, and > |I'm not asking to duplicate the speed of a bean-only implementation. But > |supporting a maximum of 25 concurrent users on a decent (if not maxed-out) > |server seems ... suspiciously slow. > | > |It may be that I've missed some settings to speed things up. It > |may be that > |our application's architecture is better suited to Orion than to JBoss. > |Whatever it is, I'd like to find out. So I've joined the JBoss list, and > |I'm here to ask some questions. I'm not trying to promote Orion, or insult > |JBoss. I like bits of both of them, and the reasons for that, I can get > |into another day. Ultimately, however, I'd rather support JBoss as an > |open-source appserver, if I can. > | > |-- > | > |Now, on to the details. Some of you pointed out, and rightly so, that I > |hadn't provided much in the way of details of what I've tried, which is > |true. I wanted to start off by finding out if the kind of numbers I was > |talking about seemed realistic or not, based on the experience of people > |who'd spent more time with JBoss than I have, but it's probably fair to say > |that you couldn't really say without knowing a lot more about my > |application. So let's get into a few details. > | > |Let's start with versions. I did some of my original EJB > |experimentation on > |JBoss-2.4.1. We started developing a project on JBoss-2.4.1a w/ Embedded > |Tomcat, which was the latest JBoss/Tomcat grouping at the time. We started > |noticing performance concerns then. When Tomcat 4 came out, we moved to > |JBoss-2.4.3 w/ Embedded Catalina, so that we could try a few things, and > |found it not to be slower, so we stayed with it. > | > |After we reached a point where we needed to see better performance, we did > |some optimizing of our app with a profiler, and tried JBoss 2.4.3 w/ Resin, > |which we already knew to be fast. That gave us a minor speed > |boost, but not > |very much, leading me to believe that JBoss might be the cause of some of > |our performance. By comparison, Orion 1.5.2 seems to be very much faster. > | > |All of this is running on Windows 2000. The versions of Tomcat are 3.2.3 > |and 4.0, as far as I know. The version of Resin is the latest > |version as of > |a few weeks ago, I'd have to go check. If it's important, I will. > | > |Processor speed depended, but developers are working, largely, on > |PIII-700MHzs, and we did most of our load-testing on a Ghz P4. > | > |Tuned updates are on, jaws debug is off, and logging was set as low as we > |really could expect it to be. > | > |Our performance numbers were derived in several ways - by using the > |Microsoft Web Application Stress tool (since we've used that in the past, > |and haven't yet found a better alternative; if you have suggestions, I'm > |happy to hear them), watching memory/processor load on the box > |being tested, > |junit test times and subjective experience. > | > |Our initial concerns came out of JUnit test times. Our EJB tests > |(which are > |pretty thorough, I'll admit) are taking several seconds, whereas the time > |required to test a hand-rolled bean solution was usually well, well under a > |second. HttpUnit tests are taking tens of seconds, instead of seconds. > |This began to concern me, but we didn't need performance at an early stage, > |and I knew I could replace Tomcat and/or JBoss if necessary. > | > |Once we started to use the Web Application Stress Tool, though, we started > |to get really concerned. After some profiling to speed a few things up, we > |were unable to get more than about 20 simultaneous users on the application > |without slowing things down significantly, getting Time To Last > |Byte on some > |of the more intense pages up past ten seconds, which is far too long. Even > |running Resin and JBoss together was getting us only up to 25. The > |processor usage on the server while the load test was running was > |practically solid at 100% for the bulk of the test and the JVM doesn't seem > |to be using up all the memory it has already, so we didn't increase the JVM > |memory space. > | > |By comparison, under Orion, I can get 350 users on the same > |application, and > |the processor load is only up around 65%. > | > |This concerns me. The application is going to be used by quite > |probably 200 > |users at once, possibly double or triple that, on a regular basis, and > |perhaps up to 2000 users under peak loads. That's not a > |massively-heavy web > |application, in my mind. Not being able to get past 25 users > |under JBoss is > |just not going to cut it, so if I have to put up with poor documentation, > |closed source, and shelling out for an orion deployment license to get the > |speed I need, I will. > | > |But if you all can recommend alternatives to get speed out of JBoss, I'd > |love to hear it. > | > |-- > | > |There's been a number of suggestions to try JBoss/Jetty. I'll give it a > |shot, although I don't know much about Jetty. I'd also like to throw > |together a simple performance test that I could use to demonstrate my issue > |a lot better than the existing application, but I don't know if > |I'm going to > |have time to do that, particularly since I also want to evaluate the > |newly-free HP-AS to get some feeling for it in comparison to both JBoss and > |Orion. It may turn out that we go with Orion for this project simply to > |save time figuring out our other options. If we can get acceptable > |performance out of Orion in the near term, it may be more cost-effective > |than spending time diagnosing our JBoss issues. > | > |If there are suggestions on how we can increase our performance, > |or requests > |for more information, I'm open to hear them. Even if I don't have time to > |implement them on this project, I'd love to know how I could make use of > |JBoss on future projects without encountering this kind of performance > |issue. > | > |Thanks in advance, > | > | - Geoffrey > | > |__________________________________________________________ > |Geoffrey Wiseman: Internet Applications Manager > |Medium One > |t. 416.977.2101 x. 529 > |http://www.mediumone.com/ > |__________________________________________________________ > |Think it. Build it. Work it. > | > | > | > |_______________________________________________ > |JBoss-user mailing list > |[EMAIL PROTECTED] > |https://lists.sourceforge.net/lists/listinfo/jboss-user > > > _______________________________________________ > JBoss-user mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/jboss-user _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
