LabVIEW about TDMS and binary storage speeds

LabVIEW About TDMS and Binary Storage speed

Use TDMSwrite When writing to a file , How to reflect its high efficiency ？ Storage mode and Write to binary file What's the difference? ？

A simple test , Write an outline to a file 39M Waveform data of , Use TDMS Write and Write to Binary file The time taken is not much different , about 850ms. In terms of storage speed , Not reflected TDMS The superiority of documents .

that , stay LabVIEW in , What is the fastest storage speed .

Efficiency , In fact, it is reflected in many aspects , High speed flow disk is one aspect of high efficiency , Other things to consider are , For example, whether the documents are well organized , Whether the file crosses the software 、 Cross platform and so on , Of course , It all depends on the specific application .

TDMS How to store and binarfile comparison , The big difference ：TDMS The storage is consistent with a TDMS The three-tier structure of the document ： file 、 The three-layer structure of channel group and channel , Good organizational structure , and binary The document is a LabVIEW The data in the file is directly put into the file , There is no concept of grouping . secondly ,TDMS Can be in addition to LabVIEW Most other than NI For software , such as CVI、SignalExpress、DIAdem wait ,binary The file is just LabVIEW Can be used in , Other software does not support .

39M The data of are written to TDMS and binary It really doesn't make much difference . We have experimented , With a lot of data ,TDMS Faster than Binary It won't make much difference , The difference in speed can basically be controlled in 5% within , Can completely meet the needs of users , And if you use TDMS file , What you get is a well-organized document with the above advantages .

If you want a long-term high-speed flow disc , There is... Every second 80M The above data , Then the general hard disk can not meet such requirements . It is recommended to upgrade to disk array .

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LabVIEW About TDMS and Binary Storage speed - Beijing Hanwen Wangxing Technology Co., Ltd (bjcyck.com)