1*3117ece4Schristos# !/bin/sh 2*3117ece4Schristosset -e 3*3117ece4Schristos 4*3117ece4Schristos# Benchmarks run on a Ubuntu 14.04 VM with 2 cores and 4 GiB of RAM. 5*3117ece4Schristos# The VM is running on a Macbook Pro with a 3.1 GHz Intel Core i7 processor and 6*3117ece4Schristos# 16 GB of RAM and an SSD. 7*3117ece4Schristos 8*3117ece4Schristos# $BENCHMARK_DIR is generated with the following commands, from the Ubuntu image 9*3117ece4Schristos# ubuntu-16.10-desktop-amd64.iso. 10*3117ece4Schristos# > mkdir mnt 11*3117ece4Schristos# > sudo mount -o loop ubuntu-16.10-desktop-amd64.iso mnt 12*3117ece4Schristos# > cp mnt/casper/filesystem.squashfs . 13*3117ece4Schristos# > sudo unsquashfs filesystem.squashfs 14*3117ece4Schristos 15*3117ece4Schristos# $HOME is on a ext4 filesystem 16*3117ece4SchristosBENCHMARK_DIR="$HOME/squashfs-root/" 17*3117ece4SchristosBENCHMARK_FS="$HOME/filesystem.squashfs" 18*3117ece4Schristos 19*3117ece4Schristos# Normalize the environment 20*3117ece4Schristossudo rm -f $BENCHMARK_FS 2> /dev/null > /dev/null || true 21*3117ece4Schristossudo umount /mnt/squashfs 2> /dev/null > /dev/null || true 22*3117ece4Schristos 23*3117ece4Schristos# Run the benchmark 24*3117ece4Schristosecho "Compression" 25*3117ece4Schristosecho "sudo mksquashfs $BENCHMARK_DIR $BENCHMARK_FS $@" 26*3117ece4Schristostime sudo mksquashfs $BENCHMARK_DIR $BENCHMARK_FS $@ 2> /dev/null > /dev/null 27*3117ece4Schristos 28*3117ece4Schristosecho "Approximate compression ratio" 29*3117ece4Schristosprintf "%d / %d\n" \ 30*3117ece4Schristos $(sudo du -sx --block-size=1 $BENCHMARK_DIR | cut -f1) \ 31*3117ece4Schristos $(sudo du -sx --block-size=1 $BENCHMARK_FS | cut -f1); 32*3117ece4Schristos 33*3117ece4Schristos# Mount the filesystem 34*3117ece4Schristossudo mount -t squashfs $BENCHMARK_FS /mnt/squashfs 35*3117ece4Schristos 36*3117ece4Schristosecho "Decompression" 37*3117ece4Schristostime sudo tar -c /mnt/squashfs 2> /dev/null | wc -c > /dev/null 38*3117ece4Schristos 39*3117ece4Schristossudo umount /mnt/squashfs 40