perf tests: Implement Zstd comp/decomp integration test

[linux-2.6-microblaze.git] / tools / perf / tests / shell / record+zstd_comp_decomp.sh

diff --git a/tools/perf/tests/shell/record+zstd_comp_decomp.sh b/tools/perf/tests/shell/record+zstd_comp_decomp.sh
new file mode 100755 (executable)
index 0000000..93a26a8
--- /dev/null
+++ b/tools/perf/tests/shell/record+zstd_comp_decomp.sh
@@ -0,0 +1,35 @@
+#!/bin/sh
+# Zstd perf.data compression/decompression
+
+trace_file=$(mktemp /tmp/perf.data.XXX)
+perf_tool=perf
+output=/dev/null
+
+skip_if_no_z_record() {
+       $perf_tool record -h 2>&1 | grep '\-z, \-\-compression\-level'
+}
+
+collect_z_record() {
+       echo "Collecting compressed record file:"
+       $perf_tool record -o $trace_file -g -z -F 5000 -- \
+               dd count=500 if=/dev/random of=/dev/null > $output 2>&1
+}
+
+check_compressed_stats() {
+       echo "Checking compressed events stats:"
+       $perf_tool report -i $trace_file --header --stats | \
+               grep -E "(# compressed : Zstd,)|(COMPRESSED events:)" > $output 2>&1
+}
+
+check_compressed_output() {
+       $perf_tool inject -i $trace_file -o $trace_file.decomp &&
+       $perf_tool report -i $trace_file --stdio | head -n -3 > $trace_file.comp.output &&
+       $perf_tool report -i $trace_file.decomp --stdio | head -n -3 > $trace_file.decomp.output &&
+       diff $trace_file.comp.output $trace_file.decomp.output > $output 2>&1
+}
+
+skip_if_no_z_record || exit 2
+collect_z_record && check_compressed_stats && check_compressed_output
+err=$?
+rm -f $trace_file*
+exit $err