08-26-2009 05:50 AM
Up until yesterday, I was running a version of LabVIEW 8.5 that I had downloaded from the NI website, and then activated using the serial number.
Yesterday, I got around to installing the full NI Developer Suite (including LabVIEW 8.6 and a load of extra modules/toolkits), from the supplied DVDs.
Since then, my VIs seem to be running a lot slower.
Is there something that might have started running in the background slowing things down, since the Dev Suite installation? Is there a known issue in the speed of v8.6 compared to v8.5?
08-26-2009 06:25 AM
Hi Dan,
"seem to be running slower" is not very descriptive...
- Measured speed?
- What vi? Calculations? DAQ? Port access?
- Checked taskmanager? CPU load?
For me LV8.6 has about the same speed as LV8.5. LV2009 is sometimes faster (~7% for heavy memory access routines...).
08-26-2009 06:28 AM
Hi there
I have several LV versions installed, including 8.5.1 and 8.6.1, and as far as i know there are no issues regarding slowing down VIs.
1. Take a look at the projects "Files" tab page to check wether there are still some 8.5 VIs linked to your code
2. If you are absolutely sure there are no 8.5 VIs linked make a mass compile of your project (Tools->Advanced->Mass compile)
But maybe it's something simple like a highlighted execution in one of your sub VIs.
08-26-2009 06:32 AM
Did you try monitoring using VI profiler?
Tools>Profile>Performance and Memory
Also, I believe the loading time may have increased in your case, because of LV loading extra modules you have installed.
I experience this during my first "search" functionality in LV since I have lots of modules installed.
Cheers!