POSIXify, add docs, other changes

1 files changed, 21 insertions, 0 deletions

diff --git a/comp_bench b/comp_bench
new file mode 100755
index 0000000..01387da
--- /dev/null
+++ b/comp_bench
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+set -e
+
+do_bench() {
+    tmpfile=$(mktemp)
+    trap 'rm -f "$tmpfile"' EXIT
+    compressor=cat outfile=/proc/self/fd/1 ./make | "$@" -c < initramfs.img > "$tmpfile"
+    printf '%s: %s bytes\n' "$1" "$(wc -c < "$tmpfile")"
+    time $1 -dc < "$tmpfile" >/dev/null
+    rm "$tmpfile"
+    trap '' EXIT
+    echo
+}
+
+do_bench gzip -9
+do_bench bzip2 -9
+do_bench lzma -9e --check=crc32
+do_bench xz --check=crc32 --x86 --lzma2=preset=9e
+do_bench lzop -9
+do_bench lz4 --best --favor-decSpeed -l