iotrace_parse dumps the contents of a log file in a human-readable form. The below is a sample output:
w start=1099053526:762.352ms duration=0.315ms sector=9339224 #sects=8[49ab1228bd3011f8,193c118547119c80,2aa33c11a6ee755e,e714692afdf78c35,6e3de365e68a0cd7,3ff68cb203d49238,98a97c7760b1f81a,793fbf63726a4651]
w is the type of request. It is either "r" or "w".
start=NNNN shows the UTC of the start of the request. UTC is the value returned by gettimeofday.
duration=NNN shows the duration of the request.
sector=NNN is the sector number. It is relative to the beginning of the partition being traced.
#sects=N is the number of sectors read or written.
The rest of the line is the MD5 fingerprint of each sector. This part
may not exist, depending on how you configured the kernel
(CONFIG_IOTRACE_FINGERPRINT must be defined).