tdms read is slow on the cRIO9024

[tarzanyu]

Hey

I am currently modifying my old program to log data to the TDMS files instead of text files. The file size is much smaller and writing speed is reasonable. The problem is that when I read the TDMS file, it seems very slow (11.293 seconds), and acquires nearly full CPU capacity (97%) for couple of seconds, which will cut the user interface communication. The file size is below 9MB with 37 columns and 30000 rows. I am not sure it is normal or not, just feel little bit hard to believe. The same program working fine on my laptop (1.281 seconds), but obviously it has more powerful CPU (dual 2.5GHz instead of cRIO's 800MHz). Waiting for any luminous idea, thanks.

[Dennis_Knutson · Accepted solution]

---

duplicate post