tdms property read slow

[Jim West]

I have seen a major difference in time for reading properties from TDMS files between Labview 86 and 90

 I see 141 MS in 86 and 1200 MS in 9 . to read the same file

Has any one else seen the slowdown?

jim

[mishkin]

Jim,

In 2009, some improvements to the TDMS file format were introduced to increase writing speed:  TDMS File Improvements in LabVIEW 2009

So I'm not sure why you're seeing such a performance hit. I take it you're running the same code on both? Can you post a simple example of what you're doing and how you're benchmarking it? 

[Jim West]

It is nice LV9 has improvements for file writing but I am talking about reading properties in the file  . I can't really post the code -- short of creating a simple version I will try later

[Jim West]

I found the problem with my code -- no problem with library Jim

[mishkin]

Thanks for posting back, Jim