top command to check CPU performances and memory usage on the New RPi3 while running a browser.
Since we have a
4× ARM Cortex-A53, 1.2GHz, how should I read the result?
$ top Mem: 327132K used, 620864K free, 29124K shrd, 5800K buff, 164492K cached CPU: 80% usr 8% sys 0% nic 2% idle 0% io 0% irq 9% sirq ...
- 80% un-niced processes
- 8% system processes
My understanding is that when it shows 80%, that means 80% out of 400% full capacity, since we have 4 cores right?
Does that mean that the
topcommand doesn't not calculate the
How do I check the % usage/idle for each core?
My Linux (Image built with Yocto for RPi3)
root@raspberrypi3:~# uname -a Linux raspberrypi3 4.1.18 #1 SMP Thu Mar 17 10:26:07 CET 2016 armv7l GNU/Linux root@raspberrypi3:~# lsb_release -a LSB Version: core-4.1-noarch:core-4.1-arm Distributor ID: poky Description: Poky (Yocto Project Reference Distro) 1.8.1 Release: 1.8.1 Codename: fido
root@raspberrypi3:~# top --version top: unrecognized option '--version' BusyBox v1.23.1 (2015-10-19 16:33:36 CEST) multi-call binary. Usage: top [-b] [-nCOUNT] [-dSECONDS]