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Write to file at exact ms intervals
Ben
Knight of NI
07-09-2010 11:02 AM
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If it is now looking like something specific to your machine...
Virus Checking software?
Disk Indexing?
Ben
Retired Senior Automation Systems Architect with Data Science Automation LabVIEW Champion Knight of NI and Prepper LinkedIn Profile YouTube Channel
07-09-2010 11:08 AM
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Ben, I was starting to think the same thing. On my laptop I can't disable anti-virus software, disk encryption etc.. That's why I'm now installing LabVIEW to my desktop computer where I can do all those things. Will post an update as soon as everything is up and running
Ray.R
Knight of NI
07-09-2010 11:15 AM - edited 07-09-2010 11:16 AM
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@tbob wrote:But I didn't have to do that and it worked fine. Something screwy here.
Windoze has some strange performace behavior unrelated to hardware.
I have certain suspicions...
Regardless, there are ways to circumvent bad OS limitations... 😉
tbob
Trusted Enthusiast
07-09-2010 11:23 AM
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@Ray.R wrote:
Regardless, there are ways to circumvent bad OS limitations... 😉
Yes I agree. Use a Mac. They RULE!!!
Ray.R
Knight of NI
07-09-2010 11:45 AM
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LOL!!
Actually... you are right. And to think that ~10 years ago (okay... 15) I used to be pro PC / anti-MAC. What an idiot.. I'm getting my first MAC soon. Most PC's are going Linux. I will keep a couple of PC's on win-xpee.
tbob
Trusted Enthusiast
07-09-2010 11:53 AM
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@Ray.R wrote:
LOL!!
Actually... you are right. And to think that ~10 years ago (okay... 15) I used to be pro PC / anti-MAC. What an idiot.. I'm getting my first MAC soon. Most PC's are going Linux. I will keep a couple of PC's on win-xpee.
It will take some getting used to the new OS at first. But in a very short while you will love the Mac and hate PCs. I wish the business community would switch to Macs and that Winblows OS would die a quick death.
Ray.R
Knight of NI
07-09-2010 12:03 PM
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it's starting... or it's started...
07-09-2010 02:09 PM - edited 07-09-2010 02:10 PM
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(sad) update:
this is from my desktop computer, fresh install of labview today
Download All
Virus scan in progress. Please wait to download attachments.
Ben
Knight of NI
07-09-2010 02:21 PM
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That last image looks like you have about 0.1 ms of jitter in the time stamps.
Is that an issue?
What is nature of your real data source, is it more deterministic that that?
Ben
Retired Senior Automation Systems Architect with Data Science Automation LabVIEW Champion Knight of NI and Prepper LinkedIn Profile YouTube Channel
Ray.R
Knight of NI
07-09-2010 02:29 PM
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0.1ms is usually considered pretty good. 1 sec delta for every 10000 samples.
Have you considered the two loops and set each to a different core?
OR
Trigger writing to file at every 10 second interval and see if that causes some improvement.
Also, did you post your entire code? We could look at it and see if there is some performance improvements that could be suggested.
