#!/bin/bash

# Dropping caches...
# Killing other vmtouch instances...
# Evicting vmtouch pages...
# Evicting /usr/lib/gcc/x86_64-linux-gnu/12/cc1
#
#            Files: 1
#      Directories: 0
#    Evicted Pages: 8142 (31M)
#          Elapsed: 9.3e-05 seconds
# Running test:
# Run time: .862693115
#
# Loading into memory with vmtouch...
# Sleeping 5 seconds to make sure it is loaded completely...
# /usr/lib/gcc/x86_64-linux-gnu/12/cc1
# [OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO] 8142/8142
# LOCKED 8142 pages (31M)
# Running test:
# Run time: .032221643





echo "Dropping caches..."
echo 1 > /proc/sys/vm/drop_caches
echo "Killing other vmtouch instances..."
pkill -f vmtouch
echo "Evicting vmtouch pages..."
vmtouch -ve /usr/lib/gcc/x86_64-linux-gnu/12/cc1
echo "Running test:"
start=`date +%s.%N`
/usr/lib/gcc/x86_64-linux-gnu/12/cc1 --help 2>&1 > /dev/null
end=`date +%s.%N`
runt=$( echo "$end - $start" | bc -l )
echo "Run time: $runt"
echo
echo "Loading into memory with vmtouch..."
vmtouch -vl /usr/lib/gcc/x86_64-linux-gnu/12/cc1 &
echo "Sleeping 5 seconds to make sure it is loaded completely..."
sleep 5
echo "Running test:"
start=`date +%s.%N`
/usr/lib/gcc/x86_64-linux-gnu/12/cc1 --help 2>&1 > /dev/null
end=`date +%s.%N`
runt=$( echo "$end - $start" | bc -l )
echo "Run time: $runt"