I have an X session forward via ssh. I run a Java jar application (Apache JMeter) on the remote server.
It functioned really well with acceptable lag until today. Recently has become really unresponsive, e.g. it takes approximately 10 sec to open a menu bar, and on top of that my client desktop freezes until all the ordered actions occur. I have a connection with more than 1MB/s bandwidth down. When I scp'ed a file to my client system it saturated my broadband to conclude that there not a load bottleneck on the server at the moment.
From my system monitor I noticed little utilization of my client system's network resources. The ping to the remote server is 40ms. When I run the same task on my local network it works great.
On remote server:
$ java -version
java version "1.7.0_76"
Java(TM) SE Runtime Environment (build 1.7.0_76-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.76-b04, mixed mode)
On my client I've tried two flavors of Java:
$ java -version
java version "1.7.0_91"
OpenJDK Runtime Environment (IcedTea 2.6.3) (7u91-2.6.3-1)
OpenJDK 64-Bit Server VM (build 24.91-b01, mixed mode)
and
$ java -version
java version "1.8.0_77"
Java(TM) SE Runtime Environment (build 1.8.0_77-b03)
Java HotSpot(TM) 64-Bit Server VM (build 25.77-b03, mixed mode)
yielding the same results.
Does JVM has issues with ssh X forwarding? Is there anything to make the application usable?
