Mouse movement accelerates graphic tracing activities!

Salvation OR,.

I tried to run a project collecting data rs - 232 (incoming data to 10msec frequency... 20 bytes each 10msec). The LabWindows environment seems to work more efficiently (faster) if I move my mouse over the plots (without even clicking it!) as opposed to a regular path in the tabs pane. I have used a TSQ + thread concept pool to run my data collection and plan update. Can someone help me please on the fastest way to plot the data. I was informed earlier not to use a timer in GUI for tracing purposes with data acquisition high speed and track! I can't understand why the plot is faster when I move my mouse over the graph as opposed to simply let draw normally! I use a WinXP machine.

Kind regards

-Ashish

Combination of Roberto and Kanchan,

1. the configuration of the machine: Pentuim processor 2.8 Ghz, 1 GB Ram, Windows XP, Labwindows CVI 2009.

2. the SetSleepPolicy concept seems to have solved part of our problem with the refresh for the application rate... we are very grateful for this entry.

3. for all other users of LabWindows CVI, TSQ concept takes a period of time to place the data in the queue... so if you run periodicity 10msec to packages of process and say the queue itself write 50msec... a good idea would be to combine 5 packs and then write to the TSQ... earlier our packages were ongoing in the queue of the port COM RS - 232 by the thousands for a minute run... We took entries OR to reduce less than five packets for the same amount of execution time... temporal analysis of the code functions allowed us also to rework our code by removing the function calls that sometimes take a long time to process system events, sync expected etc.

Thanks a ton Roberto... I might just have to meet my deadline of the project now

-Ashish

Tags: NI Software

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