Slow updating of display

I'm using PCI-6025E board, doing a multiple analog acquisition, follow by some analysis of the acquired data. however i'm getting some strange response.
1. my vi takes longer to run when i'm displaying graphs, why is this so? how can i shorten the execution time of my vi.
2. When i first open the vi, the vi takes only around 15sec to complete the execution. however, when i tried to execute the same vi to process the same data again, it take around 45sec. why is this so? How can i remedy the problem? (Shortest execution time is only acheived when i closed and re-open the vi again before running)
thks & best regards
lyn

You have described what sounds like an accumulation of data issue.
I can only guess that your data is pilling up somewhere.
If you post your code we may be able to spot something that you have over-looked.
Re:taking more time when displaying using a graph. Depending on the size of the graph object, a lot of CPU could be required to do the dispaly work.
Things that can slow down graphs are;
Updating to often
using auto-scale with every update
using "smooth updates"
Dashed plot lines
"step interpolation"
This is just a short list off the top of my head.
Like I said, post your code, the wizards on this list seldom fail (have they ever?).
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

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On Fri, 15 Aug 2003 11:55:03 -0500 (CDT), HAL wrote:
>My performance is very slow when I run graphs. How do I increase the
>speed at which I can do other things while the data is being updated
>and displayed on the graphs?
>
>I am doing an an aquisition and displaying the data on graphs. When I
>run the program it is slow. I think because I have the number of
>scans to read associated with my scan rate. It takes the number of
>seconds I want to display on the chart times the scan rate and feeds
>that into the number of samples to read at a time from the AI read.
>The problem is that it stalls until the data points are aquired and
>displayed so I cannot click or change values on the front panel until
>the updates occur on the graph. What can I do to be a
ble to help
>this?
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DL_Test_1.DSB ‏3501 KB
S3.ASC ‏20 KB

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Slow updating of display

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