Spent a few hours poking at performance numbers with Grinder and a simple test case based on Marks changes to the interceptor pref test. Seeing 2-3x increase in performance.
Mark, I'm guessing your performance decrease is thread related. Too many. Try dramatically decreasing the threads allowed to execute at once. Seems the magical number for me was 8 (2-4 per core). Compiled some stats testing behavior against 1.0.x and 1.1.x at 1, 2, 4, 8, 12 ,25 ,50, 100, 500, and 200 threads: http://people.apache.org/~dblevins/owb-perf/index.html -David On Feb 24, 2011, at 3:38 PM, David Blevins wrote: > Hope attachments work > > <PastedGraphic-1.png> > > On Feb 24, 2011, at 1:53 PM, Mark Struberg wrote: > >> oh that looks really neat. >> Will check it out. >> >> LieGrue, >> strub >> >> --- On Thu, 2/24/11, David Blevins <david.blev...@gmail.com> wrote: >> >>> From: David Blevins <david.blev...@gmail.com> >>> Subject: Re: heavy performance decrease in 1.1.0-SNAPSHOT >>> To: dev@openwebbeans.apache.org >>> Date: Thursday, February 24, 2011, 9:47 PM >>> >>> On Feb 24, 2011, at 1:00 PM, Mark Struberg wrote: >>> >>>> Will do a few parallel unit tests tonight. >>> >>> Side note, I like this tool for parallel execution stats. >>> >>> http://grinder.sourceforge.net >>> >>> There docs don't have any screenshots, but basically it >>> looks like this: >>> >>> http://people.apache.org/~dblevins/ejbd-client-performance.png >>> >>> You cook up your own test as you normally would, then it >>> will execute it in parallel however you like and take >>> samples of each "client" thread and process and spit out >>> updated stats. >>> >>> >>> -David >>> >>>> >>>> LieGrue, >>>> strub >>>> >>>> --- On Thu, 2/24/11, David Blevins <david.blev...@gmail.com> >>> wrote: >>>> >>>>> From: David Blevins <david.blev...@gmail.com> >>>>> Subject: Re: heavy performance decrease in >>> 1.1.0-SNAPSHOT >>>>> To: dev@openwebbeans.apache.org >>>>> Date: Thursday, February 24, 2011, 6:02 PM >>>>> >>>>> On Feb 24, 2011, at 9:10 AM, Mark Struberg wrote: >>>>> >>>>>> oh yes, and I experience some 'stuttering'. >>> Means the >>>>> log scrolls, then it freezes for a second, logs >>> again, >>>>> freezes, etc... >>>>> >>>>> You mean log as in log >>> files? Definitely >>>>> disable logging when doing any performance testing >>> or you're >>>>> really just measuring your disk. Improved >>> logging >>>>> could easily explain that sharp decrease. >>>>> >>>>> >>>>> -David >>>>> >>>>> >>>>>> >>>>>> --- On Thu, 2/24/11, David Blevins <david.blev...@gmail.com> >>>>> wrote: >>>>>> >>>>>>> From: David Blevins <david.blev...@gmail.com> >>>>>>> Subject: Re: heavy performance decrease >>> in >>>>> 1.1.0-SNAPSHOT >>>>>>> To: dev@openwebbeans.apache.org >>>>>>> Date: Thursday, February 24, 2011, 4:50 >>> PM >>>>>>> >>>>>>> On Feb 24, 2011, at 8:32 AM, Mark Struberg >>> wrote: >>>>>>> >>>>>>>> hi folks! >>>>>>>> >>>>>>>> Today I did run a few jmeter tests and >>> it >>>>> seems that >>>>>>> we have some serious bottle neck in our >>> code >>>>> currently. The >>>>>>> app just doesn't really scale well anymore >>> and >>>>> performance >>>>>>> is down to 20% compared to 1.0.0 ... >>>>>>> >>>>>>> What aspects were you measuring and how? >>>>>>> >>>>>>> >>>>>>> -David >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>> >>>> >>>> >>>> >>> >>> >> >> >> >> >
