100 lines
2.9 KiB
Bash
100 lines
2.9 KiB
Bash
|
# !/bin/sh
|
||
|
|
set -e
|
||
|
|
|
||
|
|
# Benchmarks run on a Ubuntu 14.04 VM with 2 cores and 4 GiB of RAM.
|
||
|
|
# The VM is running on a Macbook Pro with a 3.1 GHz Intel Core i7 processor and
|
||
|
|
# 16 GB of RAM and an SSD.
|
||
|
|
|
||
|
|
# silesia is a directory that can be downloaded from
|
||
|
|
# http://mattmahoney.net/dc/silesia.html
|
||
|
|
# ls -l silesia/
|
||
|
|
# total 203M
|
||
|
|
# -rwxr-xr-x 1 terrelln 9.8M Apr 12 2002 dickens
|
||
|
|
# -rwxr-xr-x 1 terrelln 49M May 31 2002 mozilla
|
||
|
|
# -rwxr-xr-x 1 terrelln 9.6M Mar 20 2003 mr
|
||
|
|
# -rwxr-xr-x 1 terrelln 32M Apr 2 2002 nci
|
||
|
|
# -rwxr-xr-x 1 terrelln 5.9M Jul 4 2002 ooffice
|
||
|
|
# -rwxr-xr-x 1 terrelln 9.7M Apr 11 2002 osdb
|
||
|
|
# -rwxr-xr-x 1 terrelln 6.4M Apr 2 2002 reymont
|
||
|
|
# -rwxr-xr-x 1 terrelln 21M Mar 25 2002 samba
|
||
|
|
# -rwxr-xr-x 1 terrelln 7.0M Mar 24 2002 sao
|
||
|
|
# -rwxr-xr-x 1 terrelln 40M Mar 25 2002 webster
|
||
|
|
# -rwxr-xr-x 1 terrelln 8.1M Apr 4 2002 x-ray
|
||
|
|
# -rwxr-xr-x 1 terrelln 5.1M Nov 30 2000 xml
|
||
|
|
|
||
|
|
# $HOME is on a ext4 filesystem
|
||
|
|
BENCHMARK_FILE="linux-4.11.6.tar"
|
||
|
|
BENCHMARK_DIR="$HOME/$BENCHMARK_FILE"
|
||
|
|
|
||
|
|
# Normalize the environment
|
||
|
|
sudo umount /mnt/btrfs 2> /dev/null > /dev/null || true
|
||
|
|
sudo mount -t btrfs $@ /dev/sda3 /mnt/btrfs
|
||
|
|
sudo rm -rf /mnt/btrfs/*
|
||
|
|
sync
|
||
|
|
sudo umount /mnt/btrfs
|
||
|
|
sudo mount -t btrfs $@ /dev/sda3 /mnt/btrfs
|
||
|
|
|
||
|
|
# Run the benchmark
|
||
|
|
echo "Copy"
|
||
|
|
time sh -c "sudo cp -r $BENCHMARK_DIR /mnt/btrfs/$BENCHMARK_FILE && sync"
|
||
|
|
|
||
|
|
echo "Approximate tarred compression ratio"
|
||
|
|
printf "%d / %d\n" \
|
||
|
|
$(df /mnt/btrfs --output=used -B 1 | tail -n 1) \
|
||
|
|
$(sudo du /mnt/btrfs -b -d 0 | tr '\t' '\n' | head -n 1);
|
||
|
|
|
||
|
|
# Unmount and remount to avoid any caching
|
||
|
|
sudo umount /mnt/btrfs
|
||
|
|
sudo mount -t btrfs $@ /dev/sda3 /mnt/btrfs
|
||
|
|
|
||
|
|
echo "Extract"
|
||
|
|
time sh -c "sudo tar -C /mnt/btrfs -xf /mnt/btrfs/$BENCHMARK_FILE && sync"
|
||
|
|
|
||
|
|
# Remove the tarball, leaving only the extracted data
|
||
|
|
sudo rm /mnt/btrfs/$BENCHMARK_FILE
|
||
|
|
# Unmount and remount to avoid any caching
|
||
|
|
sudo umount /mnt/btrfs
|
||
|
|
sudo mount -t btrfs $@ /dev/sda3 /mnt/btrfs
|
||
|
|
|
||
|
|
echo "Approximate extracted compression ratio"
|
||
|
|
printf "%d / %d\n" \
|
||
|
|
$(df /mnt/btrfs --output=used -B 1 | tail -n 1) \
|
||
|
|
$(sudo du /mnt/btrfs -b -d 0 | tr '\t' '\n' | head -n 1);
|
||
|
|
|
||
|
|
echo "Read"
|
||
|
|
time sudo tar -c /mnt/btrfs 2> /dev/null | wc -c > /dev/null
|
||
|
|
|
||
|
|
sudo rm -rf /mnt/btrfs/*
|
||
|
|
sudo umount /mnt/btrfs
|
||
|
|
|
||
|
|
# Run for each of -o compress-force={none, lzo, zlib, zstd} 5 times and take the
|
||
|
|
# min time and ratio.
|
||
|
|
|
||
|
|
# none
|
||
|
|
# copy: 0.981 s
|
||
|
|
# extract: 5.501 s
|
||
|
|
# read: 8.807 s
|
||
|
|
# tarball ratio: 0.97
|
||
|
|
# extracted ratio: 0.78
|
||
|
|
|
||
|
|
# lzo
|
||
|
|
# copy: 1.631 s
|
||
|
|
# extract: 8.458 s
|
||
|
|
# read: 8.585 s
|
||
|
|
# tarball ratio: 2.06
|
||
|
|
# extracted ratio: 1.38
|
||
|
|
|
||
|
|
# zlib
|
||
|
|
# copy: 7.750 s
|
||
|
|
# extract: 21.544 s
|
||
|
|
# read: 11.744 s
|
||
|
|
# tarball ratio : 3.40
|
||
|
|
# extracted ratio: 1.86
|
||
|
|
|
||
|
|
# zstd 1
|
||
|
|
# copy: 2.579 s
|
||
|
|
# extract: 11.479 s
|
||
|
|
# read: 9.389 s
|
||
|
|
# tarball ratio : 3.57
|
||
|
|
# extracted ratio: 1.85
|