From: Arnaldo Carvalho de Melo Date: Wed, 15 May 2019 18:58:40 +0000 (-0300) Subject: perf test zstd: Fixup verbose mode output X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=d94cfbab6da92a3fc5fb69c8dae75c5720e6ed26;p=openwrt%2Fstaging%2Fblogic.git perf test zstd: Fixup verbose mode output The shell tests should not redirect useful output to /dev/null, as that is done automatically by 'perf test' in non verbose mode, so remove that from the zstd comp/decomp test, fixing up verbose mode. Before: $ perf test zstd 68: Zstd perf.data compression/decompression : Ok $ perf test -v zstd 68: Zstd perf.data compression/decompression : --- start --- test child forked, pid 11956 -z, --compression-level[=] Collecting compressed record file: Checking compressed events stats: test child finished with 0 ---- end ---- Zstd perf.data compression/decompression: Ok $ Now: $ perf test zstd 68: Zstd perf.data compression/decompression : Ok $ perf test -v zstd 68: Zstd perf.data compression/decompression : --- start --- test child forked, pid 12695 Collecting compressed record file: 0+500 records in 72+1 records out 37361 bytes (37 kB, 36 KiB) copied, 9.83796 s, 3.8 kB/s [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.001 MB /tmp/perf.data.rzq, compressed (original 0.004 MB, ratio is 3.679) ] Checking compressed events stats: # compressed : Zstd, level = 1, ratio = 4 COMPRESSED events: 3 test child finished with 0 ---- end ---- Zstd perf.data compression/decompression: Ok $ Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Link: https://lkml.kernel.org/n/tip-tp96618ds42zic94nlh0msz3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/tests/shell/record+zstd_comp_decomp.sh b/tools/perf/tests/shell/record+zstd_comp_decomp.sh index 93a26a87b1f2..5dcba800109f 100755 --- 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