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    Subject[PATCH v4 10/10] perf tests: implement Zstd comp/decomp integration test
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    Date

    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:)" > $output 2>&1
    +}
    +
    +skip_if_no_z_record || exit 2
    +collect_z_record && check_compressed_stats
    +err=$?
    +rm -f $trace_file
    +exit $err
    \
     
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