SmartCode Solutions Web Forum » SmartCode VNC Manager » Archived "Beta" Forums » 5.0 Beta » High CPU Usage

High CPU Usage

jpickerell — Tue, 17 Nov 2009 12:32:30 GMT

Created a ticket in the support system and attached the error logs.

VNC Manager v5.0.13.0 RC2
CPU: AMD Athlon 64 X2 4200+
Memory: 2GB
OS: Windows XP Pro with SP3 (32-bit)

I upgraded to VNC Manager v5.0.13.0 RC2 a couple of days ago. I left it running on my desktop PC yesterday and over night. When coming back to my PC this morning I found it running extremely slow. Looking at task manager, I find that vncmanager.exe is using around 50% CPU.

I was able to get VNC manager to display. It had 4 active VNC tabs and 1 active HTTP tab. I was able to close all tabs. No CPU difference.

I then looked at active tasks. The Computer Status Updater was at 24529 of 25012 computers. I don't have 25000 computers on my network. Even with many of my PCs duplicated in my VNC Manager tree, I only have no more than 600PCs. Less than 300 actual PCs. The Default VNC/RDP scan was also at 2022 of 2032 PCs. Again, more PCs than I have in the tree.

I tried canceling the Computer Status Updater. and relieved an "Unhandled exception.... Object reference not set to an instance of an object" error. See attached log1 for the details of this error. The task was no longer running. VNC Manager continued running with 50% CPU.

I then tried canceling the Default VNC/RDP Scan. It would not cancel. No error, just wouldn't cancel. (No progression through number of PCs either - neither task was progressing through their counts)

I then tried closing VNC Manager using the X. "Unhandled Exception... Object reference not set..." again. See attached log2. Program remained running and with 50% CPU.

Had to use task manager to end the vncmanager executable.

This might be an "improvement" in behavior I've been seeing in the previous 5.x betas. When leaving VNC manager running for longer periods of time, it would always close out and give me the Microsoft "Send error report..." dialog. This time it didn't automatically close out, but allowed me to see a little more what was going on.

-Jared

RE: High CPU Usage

Yury Averkiev (s-code) — Tue, 17 Nov 2009 12:32:30 GMT

Hi Gordon,
I've opened a new ticked for the SSH port-forwarding CPU% problem. The tickect number TRY-802205.

As soon as we get back from PDC09 back to Singapore we will do some research on this problem. I'll update this thread with our findings.

RE: High CPU Usage

Gordon — Tue, 17 Nov 2009 10:30:46 GMT

I see large spikes in CPU usage when connecting to hosts through an SSH tunnel. All of my hosts use RDP. I can connect to hosts on the same subnet (no SSH tunnel) with no noticeable CPU hit. When I connect to a single host through the SSH tunnel, my CPU spikes to about 50%, each additional host will bump it up a bit more.

RE: High CPU Usage

Yury Averkiev (s-code) — Fri, 30 Oct 2009 21:42:12 GMT

So my VNC Manager have been running for 12+ hours. I've around 20+ DSF folders with 600+ computers stored in them and around 300+ registered computers.
For the first hours the memory usage was 120MB, but in the morning it was down to 60+MB and the CPU usage was normal.

PS: I'm waiting for your VM configuration files.

RE: High CPU Usage

Yury Averkiev (s-code) — Fri, 30 Oct 2009 09:37:43 GMT

Hi Jared,
I'm going to leave the VNC Manager in my computer to run over night. I've it configure with an AD DSF folder to update itself every 60 minutes and the status updater for registered computer will run every 2 hours.

Kindly send as your VM configuration files as I requested in the support email.