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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-05-15 21:58:40 +0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-05-15 22:36:49 +0300 |
commit | d94cfbab6da92a3fc5fb69c8dae75c5720e6ed26 (patch) | |
tree | 8bfb81e786f2cdcac48fdbec7a2d7b3688c9b895 /tools | |
parent | bdc35cbc35c0b33428922503c7c85259510911a6 (diff) | |
download | linux-d94cfbab6da92a3fc5fb69c8dae75c5720e6ed26.tar.xz |
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[=<n>]
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 <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/n/tip-tp96618ds42zic94nlh0msz3@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rwxr-xr-x | tools/perf/tests/shell/record+zstd_comp_decomp.sh | 9 |
1 files changed, 4 insertions, 5 deletions
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 |