#!/bin/bash

# Single Core Boost Test Script
# Forces maximum single-core performance to reach peak boost frequencies

echo "Testing single-core boost capability..."
echo "Current base frequency: $(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq | awk '{print $1/1000}') MHz"

# Disable cores 1-7 temporarily to force single-core boost
for cpu in {1..7}; do
    echo 0 | sudo tee /sys/devices/system/cpu/cpu${cpu}/online > /dev/null 2>&1
done

echo "Cores 1-7 disabled, testing single-core boost..."

# Run intensive single-core workload
timeout 5s bash -c 'while true; do echo "scale=5000; 4*a(1)" | bc -l > /dev/null 2>&1; done' &

sleep 2
echo "Peak frequency during single-core load: $(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq | awk '{print $1/1000}') MHz"

# Re-enable all cores
for cpu in {1..7}; do
    echo 1 | sudo tee /sys/devices/system/cpu/cpu${cpu}/online > /dev/null 2>&1
done

wait
echo "All cores re-enabled"
echo "Final frequency: $(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq | awk '{print $1/1000}') MHz"