Re: [X2Go-User] High latency in Java based applications (dbeaver)
Hi all, Thanks for the answers. @Stefan: The problem occurs in both modes. (We used X2Go in desktop mode for a long time before trying single-application mode, no difference). Adding *-Dsun.java2d.xrender=True* did improve latency (although it's noticeable, so I'd like to investigate more). @Ulrich The environment variable did not change anything, but maybe the second one will (that recommendation is from 2012). On Tue, Jun 22, 2021 at 4:01 AM Ulrich Sibiller wrote: > If you are using the single application mode you could try this: > > https://superuser.com/questions/400766/netbeans-java-shows-empty-window-in-tiling-window-manager-awesome-wm > In the past I had success both with the wmname tool and the > environment variable. > > Uli > > > > On Tue, Jun 22, 2021 at 8:58 AM Stefan Baur > wrote: > > > > Hi Tom, > > > > Am 21.06.21 um 22:20 schrieb Tom Korach: > > > mobaXterm did not allow forwarding a > > > single application > > > > This makes me wonder - in your initial post to the list, you stated you > > were using XFCE. Now it sounds like you're trying to use single > > application mode. > > > > If you're only seeing this issue in seamless modes like single or > > published application mode, then I'm not too surprised. I think one of > > our devs - could have been Mihai, so cc'ing him here - once mentioned > > that "refreshing" doesn't work as well there. And IIRC, Java GUI > > applications like Eclipse were always quite laggy from an NX-libs point > > of view. > > Uli's suggestion re: disabling 3D rendering is also worth trying. > > > > @Mihai: Was this something about XDamage only working with Desktop > > Environments? > > > > @Tom: You could also try out a Linux client (boot a live Linux via USB > > if you have no other option) and see if X2GoClient on Linux behaves the > > same way, or if the situation is better there - maybe X2GoClient / > > VcXsrv on Windows are being "hassled" by a virus scanner you have > > running, while the NoMachine App is whitelisted (e.g. by being > > cryptographically signed by NoMachine)? > > > > If it's not too much of a problem for you, you could also try out > > upgrading your server to the development version of X2GoServer and try > > running X2Go in KDrive mode (this only works for Desktop Environments, > > not for single/published applications, though). > > > > Kind Regards, > > Stefan Baur > > > > -- > > BAUR-ITCS UG (haftungsbeschränkt) > > Geschäftsführer: Stefan Baur > > Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364 > > Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243 > > ___ > > x2go-user mailing list > > x2go-user@lists.x2go.org > > https://lists.x2go.org/listinfo/x2go-user > ___ x2go-user mailing list x2go-user@lists.x2go.org https://lists.x2go.org/listinfo/x2go-user
Re: [X2Go-User] High latency in Java based applications (dbeaver)
If you are using the single application mode you could try this: https://superuser.com/questions/400766/netbeans-java-shows-empty-window-in-tiling-window-manager-awesome-wm In the past I had success both with the wmname tool and the environment variable. Uli On Tue, Jun 22, 2021 at 8:58 AM Stefan Baur wrote: > > Hi Tom, > > Am 21.06.21 um 22:20 schrieb Tom Korach: > > mobaXterm did not allow forwarding a > > single application > > This makes me wonder - in your initial post to the list, you stated you > were using XFCE. Now it sounds like you're trying to use single > application mode. > > If you're only seeing this issue in seamless modes like single or > published application mode, then I'm not too surprised. I think one of > our devs - could have been Mihai, so cc'ing him here - once mentioned > that "refreshing" doesn't work as well there. And IIRC, Java GUI > applications like Eclipse were always quite laggy from an NX-libs point > of view. > Uli's suggestion re: disabling 3D rendering is also worth trying. > > @Mihai: Was this something about XDamage only working with Desktop > Environments? > > @Tom: You could also try out a Linux client (boot a live Linux via USB > if you have no other option) and see if X2GoClient on Linux behaves the > same way, or if the situation is better there - maybe X2GoClient / > VcXsrv on Windows are being "hassled" by a virus scanner you have > running, while the NoMachine App is whitelisted (e.g. by being > cryptographically signed by NoMachine)? > > If it's not too much of a problem for you, you could also try out > upgrading your server to the development version of X2GoServer and try > running X2Go in KDrive mode (this only works for Desktop Environments, > not for single/published applications, though). > > Kind Regards, > Stefan Baur > > -- > BAUR-ITCS UG (haftungsbeschränkt) > Geschäftsführer: Stefan Baur > Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364 > Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243 > ___ > x2go-user mailing list > x2go-user@lists.x2go.org > https://lists.x2go.org/listinfo/x2go-user ___ x2go-user mailing list x2go-user@lists.x2go.org https://lists.x2go.org/listinfo/x2go-user
Re: [X2Go-User] High latency in Java based applications (dbeaver)
Hi Tom, Am 21.06.21 um 22:20 schrieb Tom Korach: > mobaXterm did not allow forwarding a > single application This makes me wonder - in your initial post to the list, you stated you were using XFCE. Now it sounds like you're trying to use single application mode. If you're only seeing this issue in seamless modes like single or published application mode, then I'm not too surprised. I think one of our devs - could have been Mihai, so cc'ing him here - once mentioned that "refreshing" doesn't work as well there. And IIRC, Java GUI applications like Eclipse were always quite laggy from an NX-libs point of view. Uli's suggestion re: disabling 3D rendering is also worth trying. @Mihai: Was this something about XDamage only working with Desktop Environments? @Tom: You could also try out a Linux client (boot a live Linux via USB if you have no other option) and see if X2GoClient on Linux behaves the same way, or if the situation is better there - maybe X2GoClient / VcXsrv on Windows are being "hassled" by a virus scanner you have running, while the NoMachine App is whitelisted (e.g. by being cryptographically signed by NoMachine)? If it's not too much of a problem for you, you could also try out upgrading your server to the development version of X2GoServer and try running X2Go in KDrive mode (this only works for Desktop Environments, not for single/published applications, though). Kind Regards, Stefan Baur -- BAUR-ITCS UG (haftungsbeschränkt) Geschäftsführer: Stefan Baur Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364 Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243 ___ x2go-user mailing list x2go-user@lists.x2go.org https://lists.x2go.org/listinfo/x2go-user
Re: [X2Go-User] High latency in Java based applications (dbeaver)
On Mon, Jun 21, 2021 at 10:20 PM Tom Korach wrote: > I connected to the same server using mobXterm (X11 forwarding): similar > latency, this time across the board - mobaXterm did not allow forwarding a > single application, so I connected to a desktop session. Both dbeaver, > Firefox and the desktop in general suffered from latency (dbeaver was the > most severe). What about a single xterm? Is that fast? You can disable the X server x2go is using (VcXsrv) from x2goclient's menu. Then start mobaxterm and enable the X server there. I have no Windows at hand to describe this more precisely, sorry. > However, a parallel NoMachine solution had very little latency. > Could this be related to SSH in general? or to XFCE? > is there anything specific to tweak? The only thing I can think of is that your session might use 3d rendering which is slow. Maybe you can run dbeaver with -Dsun.java2d.xrender=True. Uli ___ x2go-user mailing list x2go-user@lists.x2go.org https://lists.x2go.org/listinfo/x2go-user
Re: [X2Go-User] High latency in Java based applications (dbeaver)
Hi, Thanks for the quick response. I connected to the same server using mobXterm (X11 forwarding): similar latency, this time across the board - mobaXterm did not allow forwarding a single application, so I connected to a desktop session. Both dbeaver, Firefox and the desktop in general suffered from latency (dbeaver was the most severe). However, a parallel NoMachine solution had very little latency. Could this be related to SSH in general? or to XFCE? is there anything specific to tweak? Thanks On Mon, Jun 21, 2021 at 3:36 PM Ulrich Sibiller wrote: > Hmm, I have tried replicating this problem, but to no avail. > > Can you please try running another Xserver on Windows, like mobaxterm? > > Uli > > On Mon, Jun 21, 2021 at 9:09 PM Tom Korach wrote: > > > > Hi, > > > > When using X2Go to work on Java-based applications (specifically, the > Eclipse-based dbeaver dbeaver.io), there is a considerable latency. It's > particularly sever when presenting dialogs, with some of them taking 3-8 > second to appear (vs. <1 second locally). > > > > The raw latency from the machine to the server is quite low (10-15 ms), > and: > > 1. Other application (via X2Go) work faster (although not completely > latency-free). > > 2. The same program (dbeaver) works almost smoothly with other > remote-desktops (e.g. NoMachine). > > > > How can this be debugged? What else can be done to improve it? > > > > Details: > > - which operating systems and versions are being used on the server and > > client, > > Server: Ubuntu 20.04. > > Client: > > Edition Windows 10 Home > > Version 20H2 > > Installed on 5/4/2021 > > OS build 19042.1052 > > Experience Windows Feature Experience Pack 120.2212.2020.0 > > > > - which versions of X2GoServer and X2GoClient are being used > > Client: 4.1.2.2 (Qt 4.8.6) > > Server: x2goserver 4.1.0.3-5 > > > > - any changes you may have made to the default configuration of the > > server, > > No changes were made. > > > > - the session settings used on the client > > Connection: WAN > > Resolution: 1920x1080 > > Display DPI 96 > > Compression: 16m-jpeg > > Image quality: 5 > > Desktop environment: XFCE. > > > > - the name of the application you are experiencing issues with > > dbeaver (dbeaver.io) > > > > ___ > > x2go-user mailing list > > x2go-user@lists.x2go.org > > https://lists.x2go.org/listinfo/x2go-user > ___ x2go-user mailing list x2go-user@lists.x2go.org https://lists.x2go.org/listinfo/x2go-user
Re: [X2Go-User] High latency in Java based applications (dbeaver)
Hmm, I have tried replicating this problem, but to no avail. Can you please try running another Xserver on Windows, like mobaxterm? Uli On Mon, Jun 21, 2021 at 9:09 PM Tom Korach wrote: > > Hi, > > When using X2Go to work on Java-based applications (specifically, the > Eclipse-based dbeaver dbeaver.io), there is a considerable latency. It's > particularly sever when presenting dialogs, with some of them taking 3-8 > second to appear (vs. <1 second locally). > > The raw latency from the machine to the server is quite low (10-15 ms), and: > 1. Other application (via X2Go) work faster (although not completely > latency-free). > 2. The same program (dbeaver) works almost smoothly with other > remote-desktops (e.g. NoMachine). > > How can this be debugged? What else can be done to improve it? > > Details: > - which operating systems and versions are being used on the server and > client, > Server: Ubuntu 20.04. > Client: > Edition Windows 10 Home > Version 20H2 > Installed on 5/4/2021 > OS build 19042.1052 > Experience Windows Feature Experience Pack 120.2212.2020.0 > > - which versions of X2GoServer and X2GoClient are being used > Client: 4.1.2.2 (Qt 4.8.6) > Server: x2goserver 4.1.0.3-5 > > - any changes you may have made to the default configuration of the > server, > No changes were made. > > - the session settings used on the client > Connection: WAN > Resolution: 1920x1080 > Display DPI 96 > Compression: 16m-jpeg > Image quality: 5 > Desktop environment: XFCE. > > - the name of the application you are experiencing issues with > dbeaver (dbeaver.io) > > ___ > x2go-user mailing list > x2go-user@lists.x2go.org > https://lists.x2go.org/listinfo/x2go-user ___ x2go-user mailing list x2go-user@lists.x2go.org https://lists.x2go.org/listinfo/x2go-user
