Generate a file with a bunch of data:
bin/random_numbers -t 100000 1000 | bin/istatd_nums2file /tmp/file.cf -t 10
Dump the file to CSV format (calculating sdev etc):
bin/istat_filedump /tmp/file.cf
Get information about a counter file (checking header fields):
bin/istat_fileinfo /tmp/file.cf