If you are using linux on both boxes connected directly with crossover-cable you might actually use special kernel functionality for that specific setup. Have not used it myself, but it is there if you want to look...
On Thu, Oct 24, 2002 at 10:00:09AM -0500, Luttrell, Peter wrote: > Is there a way to reduce latency between 2 boxes connected with a 4 foot > crossover cable? Seams to me that this should provide the highest throughput > possible.... > > So are you basically saying that ~1500 messages per second is the fastest > that jbossmq can do? > > Did you see my message about hanging on to the connection which can lead to > >22,000 messages per second? > > .peter > > -----Original Message----- > From: Sacha Labourey [mailto:Sacha.Labourey@;ml.cogito-info.ch] > Sent: Thursday, October 24, 2002 2:18 AM > To: [EMAIL PROTECTED] > Subject: RE: [JBoss-user] JBossMQ Perforamance > > > And if your issue was simply because of network latency (if my memory > serves, latency is the same on both type of networks)? > > ~1500 messages/sec => 1 message each 0.5/1ms. What is your actual network > latency? > > Cheers, > > > Sacha > > > -----Message d'origine----- > > De : [EMAIL PROTECTED] > > [mailto:jboss-user-admin@;lists.sourceforge.net]De la part de Peter > > Luttrell > > Envoye : mardi, 22 octobre 2002 07:41 > > A : [EMAIL PROTECTED] > > Objet : [JBoss-user] JBossMQ Perforamance > > > > > > In order to ascertain if JBossMQ is capable of providing the throughput > > I need, i've constructed a couple of little apps to see what kind of > > performance i can get. Here's what i've found: > > > > 100 Megabit: 1250-1350 messages per second > > Gigabit: 1500-1600 messages per second > > > > I was hoping to see a bit better performance then this; especially a > > larger differential with Gigabit. 100Megabit only used about 10% of the > > network bandwidth (if you believe xp's network monitor) and gigabit > > only used at most 1.5%. > > > > Is this the best performance i can expect? > > What have others observed? > > > > Can anyone suggest where the bottleneck might be? > > Does anyone have any suggestions on what configs to tweak? > > > > All of my test code, and deployable ear is located at > > http://www.sharpuniverse.com/jboss/jms-performance > > There is a publisher and subscriber swingapps which are webstart > > deployed. There is also a publisher servlet. Deploy the ear and go to > > context: jms-performance-test for everything > > > > Here's a little more info on my tests: > > JBoss3.0.3 > > Protocal/ConnecitonFactory: OIL > > 100MegaBit tests: > > Network: several different networks all switched > > Server/Client boxes: Various differnt boxes runing w2k, > > wxp, osx and > > linux, various different jdks 1.4.0 - 1.4.1_01 > > Gigabit tests: > > Network: 2 boxes with crossover cable > > Server: MacOSX running jdk1.3.1 > > Client: WindowsXP running jdk1.4.1_01 > > > > .peter > > > > > > > > ------------------------------------------------------- > > This sf.net emial is sponsored by: Influence the future of > > Java(TM) technology. 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