[OpenJDK 2D-Dev] AAShapePipe concurrency & memory waste (original) (raw)

Laurent Bourgès bourges.laurent at gmail.com
Wed Apr 10 08:14:12 UTC 2013

Andrea, I am running benchmarks on my laptop (i7 - 2 core 2.8Ghz + HT => 4 virtual cpus) on linux 64 (fedora 14). Note: I always use cpufrequtils to set the cpu governor to performance and use fixed frequency = 2.8Ghz: [bourgesl at jmmc-laurent ~]$ uname -a Linux jmmc-laurent.obs.ujf-grenoble.fr 2.6.35.14-106.fc14.x86_64 #1 SMP Wed Nov 23 13:07:52 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

2013/4/10 Andrea Aime <andrea.aime at geo-solutions.it>

On Tue, Apr 9, 2013 at 7:34 PM, Laurent Bourgès <bourges.laurent at gmail.com_ _> wrote:

Also, this should be tested on multiple platforms, preferably Linux, Windows and Mac to see how it is affected by differences in the platform runtimes and threading (hopefully minimal).

It appears more difficult for me: I can use at work a mac 10.8 and I can run Windows XP within virtual box (but it is not very representative). I believe I can run MapBench on my Linux 64bit box during the next weekend, that would add a platform, and one were the server side behavior is enabled by default. And hopefully run the other benchmark as well.

I also run j2DBench but I can try also Java2D.demos to perform regression tests.

Laurent, have you made any changes to MapBench since I've sent it to you?

Yes I fixed a bit (cached BasicStroke, reused BufferedImage / Graphics) and added explicit GC before tests (same initial conditions): http://jmmc.fr/~bourgesl/share/java2d-pisces/MapBench/

Look at MapBench-src.zip<http://jmmc.fr/%7Ebourgesl/share/java2d-pisces/MapBench/MapBench-src.zip>for test changes.

Thanks for your efforts, Laurent

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