I am trying to create a vi that will save data to the disc at about 60 MBps. To test for this I created a simple program to generate a random 2 MB string and then append that to a file 2000 times and time how long it takes to complete. For my desktop computer running Windows 7 and an NTFS drive I can get 80 MBps, but on a PXIe-8135 running Real Time (PharLap 13.1) I only get 20 MBps. What is my limiting factor on the write speed for the PXI computer? Is there a difference in write speed between FAT and Reliance? Will a faster hard drive result in faster write speeds?
