lkml.org 
[lkml]   [2019]   [Mar]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH v5 10/10] perf tests: implement Zstd comp/decomp integration test
    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

    \
     
     \ /
      Last update: 2019-03-05 13:26    [W:2.241 / U:0.324 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site