Вы можете отслеживать /proc/statи отслеживать средние и максимальные значения. Этот ответ имеет сценарий bash для вашего вдохновения, и ваш man procдолжен быть похож на это:
/proc/stat kernel/system statistics. Varies with architecture. Common entries include: cpu 3357 0 4313 1362393 The amount of time, measured in units of USER_HZ (1/100ths of a second on most architectures, use sysconf(_SC_CLK_TCK) to obtain the right value), that the system spent in various states: user (1) Time spent in user mode. nice (2) Time spent in user mode with low priority (nice). system (3) Time spent in system mode. idle (4) Time spent in the idle task. This value should be USER_HZ times the second entry in the /proc/uptime pseudo-file. iowait (since Linux 2.5.41) (5) Time waiting for I/O to complete. irq (since Linux 2.6.0-test4) (6) Time servicing interrupts. softirq (since Linux 2.6.0-test4) (7) Time servicing softirqs. steal (since Linux 2.6.11) (8) Stolen time, which is the time spent in other operating systems when running in a virtualized envi‐ ronment guest (since Linux 2.6.24) (9) Time spent running a virtual CPU for guest operat‐ ing systems under the control of the Linux kernel. guest_nice (since Linux 2.6.33) (10) Time spent running a niced guest (virtual CPU for guest operating systems under the control of the Linux kernel).
[Источник: man& Получить загрузку ЦП для каждого ядра в сценарии оболочки ]
Вы говорите о средних значениях загрузки системы? Как
wиuptimeпредоставляют?