linuxdiskstats.py

#!/usr/bin/python3 -ttu

DISKINFO=("readios", "readmerges", "readsectors", "readticks",
        "writeios", "writemerges", "writesectors", "writeticks",
        "in_flight", "io_ticks", "time_in_queue",
        "discardios", "discardmerges", "discardsectors", "discardticks",
        "flushios", "flushticks")

def diskstats(disk):
        with open("/sys/block/{}/stat".format(disk), "r") as diskstat:
                rawdiskstats = diskstat.read().split()
        return dict(zip(DISKINFO, rawdiskstats))

if __name__ == "__main__":
        import sys
        disk = sys.argv[1]
        print(diskstats(disk))