#!/bin/dash

# Edit this file for your paths and your processor
#
# With the intel pstate driver and a i7-2600K processor and turbo on
# the min percent is 42
# For a Haswell processor the min percent will be 20

echo "Intel new Pstate Energy loop. Doug Smythies 2014.06.27"

COUNTER=42
while [ $COUNTER -lt 101 ];
do
   echo "$COUNTER" > /sys/devices/system/cpu/intel_pstate/max_perf_pct
# force min also
#   echo "$COUNTER" > /sys/devices/system/cpu/intel_pstate/min_perf_pct
# Don't force min also, but set it anyhow, in case I forgot.
   echo 42 > /sys/devices/system/cpu/intel_pstate/min_perf_pct
# Sleep probably not needed.
   sleep 1
# If higher work / sleep frequencies are used then calibration (done at 5 hertz)
# will be off and there will be overruns at min pstate.
# It is not that important
   sudo ./turbostat -S -J ../c/consume1 99.5 5 10
#   sudo ./turbostat -S -J ../c/consume1 99.5 200 10
   COUNTER=$((COUNTER+2))
 done