Returns CPU idle time from vmstat(8). The procedure runs for > 0.1 sec!
The function returns the following error codes:
E_FORMAT
if output format is unexpected.E_PLATFORM
if current system is not FreeBSD.E_READ
if reading failed or pipe returned no bytes.E_SYSTEM
if system call failed.Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
integer, | intent(out) | :: | idle |
Idle time [%]. |