On 05.03.2019 15:25, Jiri Olsa wrote: > On Fri, Mar 01, 2019 at 07:09:26PM +0300, Alexey Budankov wrote: >> >> Implemented basic integration test for Zstd based trace >> compression/decompression in record and report modes. >> >> Signed-off-by: Alexey Budankov <[email protected]> >> --- >> .../tests/shell/record+zstd_comp_decomp.sh | 28 +++++++++++++++++++ >> 1 file changed, 28 insertions(+) >> create mode 100755 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 >> index 000000000000..5cb2ab8e2112 >> --- /dev/null >> +++ b/tools/perf/tests/shell/record+zstd_comp_decomp.sh >> @@ -0,0 +1,28 @@ >> +#!/bin/sh >> +# record trace Zstd 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 <n>' >> +} >> + >> +collect_z_record() { >> + echo "Collecting compressed record trace file:" >> + $perf_tool record -o $trace_file -a -z 1 -F 25000 -e cycles -- \ >> + dd count=2000 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 >> +} > > so perf inject can decompress the perf.data and store > uncompressed one, right? would be great to 'uncompress'
Right. > the perf data and compare 'perf report --stdio > out.X' > outputs > > thanks a lot for adding tests! You are welcome. Implemented test performs some level of sanity testing for the feature and it is all that I can provide in this patch set. ~Alexey > > jirka >
