MIO environmental variables

There are four environment variables available for configuring MIO.

MIO_STATS
Use MIO_STATS to point to a log file for diagnostic messages and for output requested from the MIO modules.
MIO_FILES
MIO_FILES provides the key to determine which modules are called for a given file when MIO_open64 is called.
MIO_DEFAULTS
The purpose of the MIO_DEFAULTS environment variable is to aid in the readability of the data stored in the MIO_FILES environment variable.
MIO_DEBUG
The purpose of the MIO_DEBUG environment variable is to aid in debugging MIO.

Parent topic: Modular I/O