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Message-Id: <20240703200356.852727-10-kan.liang@linux.intel.com>
Date: Wed, 3 Jul 2024 13:03:56 -0700
From: kan.liang@...ux.intel.com
To: acme@...nel.org,
namhyung@...nel.org,
irogers@...gle.com,
peterz@...radead.org,
mingo@...nel.org,
linux-kernel@...r.kernel.org
Cc: adrian.hunter@...el.com,
ak@...ux.intel.com,
eranian@...gle.com,
Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH 9/9] perf test: Add new test cases for the branch counter feature
From: Kan Liang <kan.liang@...ux.intel.com>
Enhance the test case for the branch counter feature.
Now, the test verifies
- The new filter can be successfully applied on the supported platforms.
- The counter value can be outputted via the perf report -D
- The counter value and the abbr name can be outputted via the
perf script (New)
Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
---
tools/perf/tests/shell/record.sh | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh
index 3d1a7759a7b2..7964ebd9007d 100755
--- a/tools/perf/tests/shell/record.sh
+++ b/tools/perf/tests/shell/record.sh
@@ -21,6 +21,7 @@ testprog="perf test -w thloop"
cpu_pmu_dir="/sys/bus/event_source/devices/cpu*"
br_cntr_file="/caps/branch_counter_nr"
br_cntr_output="branch stack counters"
+br_cntr_script_output="br_cntr: A"
cleanup() {
rm -rf "${perfdata}"
@@ -165,7 +166,7 @@ test_workload() {
}
test_branch_counter() {
- echo "Basic branch counter test"
+ echo "Branch counter test"
# Check if the branch counter feature is supported
for dir in $cpu_pmu_dir
do
@@ -175,19 +176,25 @@ test_branch_counter() {
return
fi
done
- if ! perf record -o "${perfdata}" -j any,counter ${testprog} 2> /dev/null
+ if ! perf record -o "${perfdata}" -e "{branches:p,instructions}" -j any,counter ${testprog} 2> /dev/null
then
- echo "Basic branch counter test [Failed record]"
+ echo "Branch counter record test [Failed record]"
err=1
return
fi
if ! perf report -i "${perfdata}" -D -q | grep -q "$br_cntr_output"
then
- echo "Basic branch record test [Failed missing output]"
+ echo "Branch counter report test [Failed missing output]"
err=1
return
fi
- echo "Basic branch counter test [Success]"
+ if ! perf script -i "${perfdata}" -F +brstackinsn,+brcntr | grep -q "$br_cntr_script_output"
+ then
+ echo " Branch counter script test [Failed missing output]"
+ err=1
+ return
+ fi
+ echo "Branch counter test [Success]"
}
test_per_thread
--
2.38.1
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