Qckvu3 slow redraw on RHEL5

06/13/2014

Qckvu3 slow to redraw demo5.gds

One of our clients reported a problem he experienced on his network. Our example file (demo5.gds - 1MB) took over 1 minute to redraw on his RHEL5 workstation. However, when redirecting the display to his MAC or PC, the redraw took under a second.


Diagnosis

We asked the client to run a few basic diagnosis commands to see if any libraries are missing and whether the environment variables are set properly.

uname -a
Linux dambra-ws 2.6.18-371.4.1.el5 #1 SMP Wed Jan 8 18:42:07 EST 2014 x86_64 x86_64 x86_64 GNU/Linux

ldd qckvu3.exe
[1358][dambra@dambra-ws:~]$ ldd /brewhouse/cad4/qckvu_v382/bin/qckvu3.exe
        linux-vdso.so.1 =>  (0x00007fff73dfd000)
        liblayerdlg64.so => not found
        libqckoa64.so => not found
        liboaDM.so => not found
        liboaBase.so => not found
        liboaPlugIn.so => not found
        liboaTech.so => not found
        liboaDesign.so => not found
        liboaCommon.so => not found
        liboaRQXYTree.so => not found
        libXt.so.6 => /usr/lib64/libXt.so.6 (0x0000003208800000)
        libX11.so.6 => /usr/lib64/libX11.so.6 (0x00000031f5e00000)
        libXext.so.6 => /usr/lib64/libXext.so.6 (0x00000031f6600000)
        libnsl.so.1 => /lib64/libnsl.so.1 (0x00000031fc000000)
        libSM.so.6 => /usr/lib64/libSM.so.6 (0x00000031fe000000)
        libICE.so.6 => /usr/lib64/libICE.so.6 (0x00000031fd000000)
        libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x0000003207400000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00000031f4a00000)
        librt.so.1 => /lib64/librt.so.1 (0x00000031f4e00000)
        libm.so.6 => /lib64/libm.so.6 (0x00000031f3e00000)
        libc.so.6 => /lib64/libc.so.6 (0x00000031f3a00000)

We didn't see any issues with the information.

Solution

The user was using the GNOME desktop and the solution was to re-configure the video card.

Go to the System > Administration > Display and under the Hardware tab change the Video Card Configuration from:

nvidia- Vendor-supplied driver for nvidia cards
to:
nv - nVidia Riva 128, RIVA TNT, GeForce, nForce, and QUADRO cards

Then reboot and the Qckvu3 viewer had no delay issues during the redraw.





ARTWORK CONVERSION SOFTWARE, INC.                  Company Profile
417 Ingalls St.,     Santa Cruz, CA 95060         Tel (831) 426-6163     Fax 426-2824               email: info@artwork.com