Messages in this thread | | | Date | Tue, 5 Mar 2019 13:25:46 +0100 | From | Jiri Olsa <> | Subject | Re: [PATCH v5 10/10] perf tests: implement Zstd comp/decomp integration test |
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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 <alexey.budankov@linux.intel.com> > --- > .../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' the perf data and compare 'perf report --stdio > out.X' outputs
thanks a lot for adding tests!
jirka
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