Load-average statistics comprise: three floating point numbers, one integer ratio and one process identifier.

• Load average for last minute
• Load average for last five minutes
• Load average for last 15 minutes
• Number of currently-runnable processes, meaning either actually running or ready to run
• Total number of processes
• Last created process identifier

It follows logically that runnable processes is always less than or equal to total processes.

One space separates all fields except the runnable processes and total processes, a forward slash separates these two figures. The implementation applies this requirement explicitly. The grammar fails if more than one space exists, or if finds the terminating newline missing. This approach allows you to reverse the grammar to generate the load-average codes from the load-average figures.

throws

- existence_error(source_sink, '/proc/loadavg') on Windows, or other operating systems that do not have a proc subsystem.