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Viewing changes to checkbox-old/scripts/cpu_offlining

  • Committer: Tarmac
  • Author(s): Brendan Donegan
  • Date: 2013-06-03 11:12:58 UTC
  • mfrom: (2154.2.1 bug1185759)
  • Revision ID: tarmac-20130603111258-1b3m5ydvkf1accts
"[r=zkrynicki][bug=1185759][author=brendan-donegan] automatic merge by tarmac"

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checkbox-old/scripts/cpu_offlining
 
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#!/bin/bash
 
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echo "Beginning CPU Offlining Test" 1>&2
 
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result=0
 
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cpu_count=0
 
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# Turn CPU cores off
 
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for cpu_num in `ls /sys/devices/system/cpu | grep -o cpu[0-9]*`; do
 
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    if [ -f /sys/devices/system/cpu/$cpu_num/online ]; then
 
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        if [ "$cpu_num" != "cpu0" ]; then
 
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            ((cpu_count++))
 
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            echo "Offlining $cpu_num" 1>&2
 
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            echo 0 > /sys/devices/system/cpu/$cpu_num/online
 
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            grep -w -i -q $cpu_num /proc/interrupts
 
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            if [ $? -eq 0 ]; then
 
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                echo "ERROR: Failed to offline $cpu_num" 1>&2
 
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                result=1
 
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            fi
 
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        fi
 
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    fi
 
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done
 
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# Back on again
 
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for cpu_num in `ls /sys/devices/system/cpu | grep -o cpu[0-9]*`; do
 
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    if [ -f /sys/devices/system/cpu/$cpu_num/online ]; then
 
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        if [ "$cpu_num" != "cpu0" ]; then        
 
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            echo "Onlining $cpu_num" 1>&2
 
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            echo 1 > /sys/devices/system/cpu/$cpu_num/online
 
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            grep -w -i -q $cpu_num /proc/interrupts
 
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            if [ $? -eq 1 ]; then
 
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                echo "ERROR: Failed to online $cpu_num" 1>&2
 
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                result=1
 
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            fi
 
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        fi
 
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    fi
 
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done
 
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if [ $result -eq 0 ]; then
 
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    echo "Successfully turned $cpu_count cores off and back on"
 
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else
 
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    echo "Error with offlining one or more cores." 1>&2
 
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fi
 
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exit $result