mirror of
https://github.com/cuberite/libdeflate.git
synced 2025-09-26 04:40:31 -04:00
158 lines
3.0 KiB
Bash
Executable File
158 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
set -eu
|
|
|
|
if [ $# -eq 0 ]; then
|
|
FILE="$HOME/data/silesia"
|
|
[ ! -e "$FILE" ] && FILE="$HOME/silesia"
|
|
[ ! -e "$FILE" ] && FILE="$HOME/data/testdata"
|
|
[ ! -e "$FILE" ] && FILE="$HOME/testdata"
|
|
echo "Using default FILE: $FILE"
|
|
echo
|
|
elif [ $# -eq 1 ]; then
|
|
FILE="$1"
|
|
else
|
|
echo "Usage: $0 [FILE]" 1>&2
|
|
exit 1
|
|
fi
|
|
|
|
ARCH="$(uname -m)"
|
|
|
|
if [ -n "$(git status -s | egrep 'adler32_impl.h|crc32_impl.h')" ]; then
|
|
echo "This script will overwrite adler32_impl.h and crc32_impl.h," \
|
|
"which have uncommitted changes. Refusing to run." 1>&2
|
|
exit 1
|
|
fi
|
|
|
|
have_cpu_feature() {
|
|
local feature="$1"
|
|
local tag
|
|
case $ARCH in
|
|
arm*|aarch*)
|
|
tag="Features"
|
|
;;
|
|
*)
|
|
tag="flags"
|
|
;;
|
|
esac
|
|
grep -q "^$tag"$'[ \t]'"*:.*\<$feature\>" /proc/cpuinfo
|
|
}
|
|
|
|
make_and_test() {
|
|
make "$@" checksum test_checksums > /dev/null
|
|
./test_checksums > /dev/null
|
|
}
|
|
|
|
__do_benchmark() {
|
|
local impl="$1" speed
|
|
shift
|
|
local flags="$CKSUM_FLAGS $*"
|
|
|
|
speed=$(./checksum $flags -t "$FILE" | \
|
|
grep -o '[0-9]\+ MB/s' | grep -o '[0-9]\+')
|
|
printf "%-45s%-10s\n" "$CKSUM_NAME ($impl)" "$speed"
|
|
}
|
|
|
|
do_benchmark() {
|
|
local impl="$1"
|
|
|
|
if [ "$impl" = zlib ]; then
|
|
__do_benchmark "$impl" "-Z"
|
|
else
|
|
make_and_test CFLAGS="$EXTRA_CFLAGS"
|
|
__do_benchmark "libdeflate, $impl"
|
|
if [ $ARCH = x86_64 ]; then
|
|
make_and_test CFLAGS="-m32 $EXTRA_CFLAGS"
|
|
__do_benchmark "libdeflate, $impl, 32-bit"
|
|
fi
|
|
fi
|
|
}
|
|
|
|
sort_by_speed() {
|
|
awk '{print $NF, $0}' | sort -nr | cut -f2- -d' '
|
|
}
|
|
|
|
disable_impl() {
|
|
local name="$1"
|
|
local extra_cflags="$2"
|
|
|
|
sed -i '/^\#ifdef DISPATCH_'"$name"'$/aif (0)' lib/*/{adler,crc}32_impl.h
|
|
EXTRA_CFLAGS+=" $extra_cflags"
|
|
}
|
|
|
|
restore_impls() {
|
|
git checkout -f lib/*/{adler,crc}32_impl.h
|
|
}
|
|
|
|
trap restore_impls EXIT
|
|
|
|
cat << EOF
|
|
Method Speed (MB/s)
|
|
------ ------------
|
|
EOF
|
|
|
|
# CRC-32
|
|
CKSUM_NAME="CRC-32"
|
|
CKSUM_FLAGS=""
|
|
EXTRA_CFLAGS=""
|
|
{
|
|
case $ARCH in
|
|
i386|x86_64)
|
|
if have_cpu_feature pclmulqdq && have_cpu_feature avx; then
|
|
do_benchmark "PCLMUL/AVX"
|
|
disable_impl "PCLMUL_AVX" "-mno-avx"
|
|
fi
|
|
if have_cpu_feature pclmulqdq; then
|
|
do_benchmark "PCLMUL"
|
|
disable_impl "PCLMUL" "-mno-pclmul"
|
|
fi
|
|
;;
|
|
arm*|aarch*)
|
|
if have_cpu_feature pmull; then
|
|
do_benchmark "PMULL"
|
|
disable_impl "PMULL" ""
|
|
fi
|
|
;;
|
|
esac
|
|
do_benchmark "generic"
|
|
do_benchmark "zlib"
|
|
} | sort_by_speed
|
|
|
|
# Adler-32
|
|
CKSUM_NAME="Adler-32"
|
|
CKSUM_FLAGS="-A"
|
|
EXTRA_CFLAGS=""
|
|
echo
|
|
{
|
|
case $ARCH in
|
|
i386|x86_64)
|
|
if have_cpu_feature avx512bw; then
|
|
do_benchmark "AVX-512BW"
|
|
disable_impl "AVX512BW" "-mno-avx512bw"
|
|
fi
|
|
if have_cpu_feature avx2; then
|
|
do_benchmark "AVX2"
|
|
disable_impl "AVX2" "-mno-avx2"
|
|
fi
|
|
if have_cpu_feature sse2; then
|
|
do_benchmark "SSE2"
|
|
disable_impl "SSE2" "-mno-sse2"
|
|
fi
|
|
;;
|
|
arm*)
|
|
if have_cpu_feature neon; then
|
|
do_benchmark "NEON"
|
|
disable_impl "NEON" "-mfpu=vfpv3"
|
|
fi
|
|
;;
|
|
aarch*)
|
|
if have_cpu_feature asimd; then
|
|
do_benchmark "NEON"
|
|
disable_impl "NEON" "-march=armv8-a+nosimd"
|
|
fi
|
|
;;
|
|
esac
|
|
do_benchmark "generic"
|
|
do_benchmark "zlib"
|
|
} | sort_by_speed
|