perf test zstd: Fixup verbose mode output

[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
index 93a26a8..5dcba80 100755 (executable)
--- a/tools/perf/tests/shell/record+zstd_comp_decomp.sh
+++ b/tools/perf/tests/shell/record+zstd_comp_decomp.sh
@@ -3,29 +3,28 @@
 
 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'
+       $perf_tool record -h 2>&1 | grep -q '\-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
+               dd count=500 if=/dev/random of=/dev/null
 }
 
 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
+               grep -E "(# compressed : Zstd,)|(COMPRESSED events:)"
 }
 
 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
+       diff $trace_file.comp.output $trace_file.decomp.output
 }
 
 skip_if_no_z_record || exit 2