I'll setup a build tomorrow and see how it performs. -Mike
On Tue, Nov 16, 2010 at 4:26 PM, Greg Brown <[email protected]> wrote: > Are you able to build Pivot from source? If so, can you try commenting out > the calls to paintVolatileBuffered() and paintBuffered() in > ApplicationContext.DisplayHost#paint()? That should tell us if the double > buffering is the problem. > > On Nov 16, 2010, at 4:12 PM, Mike Smorul wrote: > >> I spoke a little too soon about using -Dsun.java2d.pmoffscreen=false, >> it was a webstart test, so I needed to specify >> -J-Dsun.java2d.pmoffscreen=false. Interactive performance improved, >> however bandwidth requirements were just as severe. >> >> I'm not sure if java has a clean to detect if its running remotely way >> other than checking the DISPLAY environment variable. >> >> -Mike >> >> On Tue, Nov 16, 2010 at 3:37 PM, Greg Brown <[email protected]> wrote: >>> It's probably because all drawing in Pivot is double-buffered, so bitmaps >>> are being sent over the wire rather than graphics primitives. >>> >>> We could potentially provide a way to turn this off - or maybe there is a >>> way to detect a remote X display and automatically turn it off? >>> >>> On Nov 16, 2010, at 3:19 PM, Mike Smorul wrote: >>> >>>> I've been trying to run a pivot app forwarded over SSH/X11 and the >>>> performance makes it almost unusable. Screen redraws take several >>>> seconds and mouse events are delayed enough that double-clicks almost >>>> never register. A similar swing app performing similar actions (file >>>> browsing) responds as if it's running locally. >>>> >>>> The two machines are connected via a gig link w/ .3ms latency. One >>>> major difference I've noticed betwee the swing and pivot app is the >>>> amount of network traffic. During redraws, the pivot app will push >>>> almost 2MB/s while the swing app hardly ever pushes over 100KB/s. I've >>>> tried the usual java2d trick of '-Dsun.java2d.pmoffscreen=false', but >>>> this had little effect. >>>> >>>> Any ideas? >>>> >>>> Thanks, >>>> -Mike >>> >>> > >
