chore: add benchmarking script

.maintainer-scripts/benchmark.sh

@@ -0,0 +1,86 @@
+#!/bin/bash
+
+set -e
+
+BENCHMARKS=$1
+if [ -z "$BENCHMARKS" ]; then
+    BENCHMARKS="extract,mkdwarfs"
+fi
+
+HF=hyperfine
+NPROC=$(nproc)
+
+NWARM=2
+NFAST=10
+NSLOW=5
+
+ARCH=$(ls -d1 dwarfs-*-Linux-*/ | head -n1)
+HASH=$ARCH
+ARCH=${ARCH/*-Linux-/}
+ARCH=${ARCH/-*/}
+HASH=${HASH/-Linux-*/}
+HASH=${HASH/*-/}
+
+OUT=reports-$HASH
+
+mkdir -p $OUT
+
+for i in dwarfs-*-Linux-*/; do
+    t=${i/*-Linux-/}
+    t=${t/\//}
+
+    for n in mkdwarfs dwarfs dwarfsck dwarfsextract; do
+        ln -sf ${i}*bin/$n $n-$t
+    done
+done
+
+DATASETS='audio disk perl video'
+
+MKDWARFS=$(ls -1 ./mkdwarfs-$ARCH-* | paste -sd "," -)
+# DWARFSCK=$(ls -1 ./dwarfsck-$ARCH-* | paste -sd "," -)
+DWARFSEXTRACT=$(ls -1 ./dwarfsextract-$ARCH-* | paste -sd "," -)
+# DWARFS=$(ls -1 ./dwarfs-$ARCH-* | paste -sd "," -)
+
+#############################################
+# extract all datasets as TAR archive
+#############################################
+
+if [[ ",$BENCHMARKS," == *,extract,* ]]; then
+    for ds in $DATASETS; do
+        $HF --export-json=$OUT/extract-$ds.json --export-markdown $OUT/extract-$ds.md -w $NWARM -m $NFAST \
+            -L bin "$DWARFSEXTRACT" "{bin} -n $NPROC -s 2g -i datasets/$ds.dwarfs -o /dev/null -f gnutar"
+    done
+fi
+
+#############################################
+# build filesystem images
+#############################################
+
+declare -A MKDWARFS_ARGS
+MKDWARFS_ARGS[audio]="-C zstd:level=5 --categorize -C pcmaudio/waveform::flac:level=1"
+MKDWARFS_ARGS[disk]="-C zstd:level=5 --categorize=incompressible --incompressible-fragments --incompressible-block-size=512k --order=revpath -B16 -C incompressible::null"
+MKDWARFS_ARGS[perl]="-C zstd:level=5"
+MKDWARFS_ARGS[video]="-C null -S 28 -B 3 -W 8 -w 0 --order=revpath"
+
+if [[ ",$BENCHMARKS," == *,mkdwarfs,* ]]; then
+    for ds in $DATASETS; do
+        if [ ! -d tmp/$ds ]; then
+            mkdir -p tmp/$ds
+            echo "Extracting $ds dataset..."
+            ./dwarfsextract-*-clang -n $NPROC -s 2g -i datasets/$ds.dwarfs -o tmp/$ds
+        fi
+
+        $HF --export-json=$OUT/mkdwarfs-$ds.json --export-markdown $OUT/mkdwarfs-$ds.md -w $NWARM -m $NSLOW \
+            -L bin "$MKDWARFS" "{bin} -i tmp/$ds -o /dev/null --force --no-progress --log-level=warn ${MKDWARFS_ARGS[$ds]}"
+    done
+fi
+
+# remove symlinks
+
+for n in mkdwarfs dwarfs dwarfsck dwarfsextract; do
+    for l in $n-$ARCH-*; do
+        if [ -L $l ]; then
+            rm -f $l
+        fi
+    done
+done