command to know the state of one core

zoya2385 · 12-17-2011, 08:37 AM

Hello,

I'm developping a parallel code on multicore architecture.

I need to know : is there a command system that Shows the percentage of a specific core usage ?

The command HTOP shows the global state for all cores. but i need a command that shows the state of core1, of core2, etc.

wile_coyote · 12-17-2011, 08:52 AM

Have you tried the "top" command then once "top" is running, press 1. That'll show you some CPU statistics.

forgot to mention cpuid maybe.

Hope this helps.

sinuhe · 12-17-2011, 08:54 AM

mpstat?

zoya2385 · 12-17-2011, 09:06 AM

thank your reply.

The command mpstat shows correctly for one core :

amina@amina-laptop:~/projet/cilkplus-install/examples/princeFGparallel$ mpstat -P 3
Linux 2.6.32-36-generic (amina-laptop) 17/12/2011 _i686_ (8 CPU)

16:05:41 CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle
16:05:41 3 9,40 0,00 0,58 0,01 0,00 0,00 0,00 0,00 90,00

can i get only the %usr for example ?? is there an option ??