Performance of fwrite and write size

Question

I\'m writing out a large numerical 2 dimensional array to a binary file (final size ~75 MB).

I\'m doing this on a linux system. First, is there a better method or s

Answer 1

Just use fwrite (no need to go lower level syscalls) and do it as one chunk. The lower level syscalls will figure out how to buffer and split up that write command the best. I've never been able to beat fwrite's performance on things like this - large sequential writes.