check for the timer interrupt raised on cpu for duration of 3 seconds and report the mode

Signed-off-by: Sanjay Singh Rawat sanjay.rawat@linaro.org --- Makefile | 2 ++ nohz/Makefile | 25 +++++++++++++++++++++ nohz/nohz_01.sh | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ nohz/nohz_01.txt | 1 + 4 files changed, 92 insertions(+) create mode 100644 nohz/Makefile create mode 100755 nohz/nohz_01.sh create mode 100644 nohz/nohz_01.txt

diff --git a/Makefile b/Makefile index 731619d..896497c 100644 --- a/Makefile +++ b/Makefile @@ -34,6 +34,7 @@ check: @(cd thermal; $(MAKE) check) # @(cd powertop; $(MAKE) check) @(cd cputopology; $(MAKE) check) + @(cd nohz; $(MAKE) check)

uncheck: @(cd cpufreq; $(MAKE) uncheck) @@ -41,6 +42,7 @@ uncheck: @(cd cpuidle; $(MAKE) uncheck) # @(cd suspend; $(MAKE) uncheck) @(cd thermal; $(MAKE) uncheck) + @(cd nohz; $(MAKE) uncheck)

recheck: uncheck check

diff --git a/nohz/Makefile b/nohz/Makefile new file mode 100644 index 0000000..315ff6f --- /dev/null +++ b/nohz/Makefile @@ -0,0 +1,25 @@ +# +# PM-QA validation test suite for the power management on Linux +# +# Copyright (C) 2014, Linaro Limited. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; either version 2 +# of the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +# +# Contributors: +# Sanjay Singh Rawat sanjay.rawat@linaro.org (LG Electronics) +# - initial API and implementation +# + +include ../Test.mk diff --git a/nohz/nohz_01.sh b/nohz/nohz_01.sh new file mode 100755 index 0000000..2828188 --- /dev/null +++ b/nohz/nohz_01.sh @@ -0,0 +1,64 @@ +#!/bin/bash +# +# PM-QA validation test suite for the power management on Linux +# +# Copyright (C) 2014, Linaro Limited. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; either version 2 +# of the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +# +# Contributors: +# Sanjay Singh Rawat sanjay.rawat@linaro.org (LG Electronics) +# - initial API and implementation +# + +# URL : https://wiki.linaro.org/WorkingGroups/PowerManagement/Resources/TestSuite/Pm... + +source ../include/functions.sh + +check_cpu_nohz_interrupt() { + local cpu=$1 + local cpuid=${cpu:3} + local ints= + local inte= + local i= + local diff= + + i=$(cat /proc/interrupts | grep time | wc -l) + if [ $i -ne 1 ]; then + echo "warning: multiple entry for timer interrupt :" $i + exit 1 + fi + + if [ "$cpu" == "cpu0" ]; then + return 0 + fi + + cpuid=$((cpuid+2)) + ints=$(cat /proc/interrupts | grep time | awk -v c=$cpuid '{ print $c }') + sleep 3 + inte=$(cat /proc/interrupts | grep time | awk -v c=$cpuid '{ print $c }') + + #echo $cpu "interrupts before" $ints "after" $inte + diff=$((inte-ints)) + + if [ $diff -eq 0 ]; then + echo $cpu "in NOHZ" + else + echo $cpu "not in NOHZ" + fi +} + +for_each_cpu check_cpu_nohz_interrupt +test_status_show diff --git a/nohz/nohz_01.txt b/nohz/nohz_01.txt new file mode 100644 index 0000000..0c547f5 --- /dev/null +++ b/nohz/nohz_01.txt @@ -0,0 +1 @@ +check each cpu is in nohz mode (wait 3 seconds for timer interrupt)