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 > >
