specified period of time, reducing the resolution of the log.
Defaults to 0.
+log_offset=int If this is set, the iolog options will include the byte
+ offset for the IO entry as well as the other data values.
+
lockmem=int Pin down the specified amount of memory with mlock(2). Can
potentially be used instead of removing memory or booting
with less memory to simulate a smaller amount of memory.