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authorIan Rogers <irogers@google.com>2025-11-22 00:19:22 -0800
committerNamhyung Kim <namhyung@kernel.org>2025-12-03 11:07:46 -0800
commitac881007c4bf7be4dae713c36b7f0309f2843611 (patch)
tree1c9c43cfeb8ec84a3c65347a814eec4144ec8f19
parent3118d14349cdbef112aa8b60c22b74c12478c4b1 (diff)
downloadtip-ac881007c4bf7be4dae713c36b7f0309f2843611.tar.gz
perf tests c2c: Add a basic c2c
Add basic c2c record and report testing to gain some coverage. Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
-rwxr-xr-xtools/perf/tests/shell/c2c.sh62
1 files changed, 62 insertions, 0 deletions
diff --git a/tools/perf/tests/shell/c2c.sh b/tools/perf/tests/shell/c2c.sh
new file mode 100755
index 00000000000000..2471d44595c35c
--- /dev/null
+++ b/tools/perf/tests/shell/c2c.sh
@@ -0,0 +1,62 @@
+#!/bin/bash
+# perf c2c tests
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+
+err=0
+perfdata=$(mktemp /tmp/__perf_c2c_test.perf.data.XXXXX)
+
+cleanup() {
+ rm -f "${perfdata}"
+ rm -f "${perfdata}".old
+ trap - EXIT TERM INT
+}
+
+trap_cleanup() {
+ echo "Unexpected signal in ${FUNCNAME[1]}"
+ cleanup
+ exit 1
+}
+trap trap_cleanup EXIT TERM INT
+
+check_c2c_support() {
+ # Check if perf c2c record works.
+ if ! perf c2c record -o "${perfdata}" -- true > /dev/null 2>&1 ; then
+ return 1
+ fi
+ return 0
+}
+
+test_c2c_record_report() {
+ echo "c2c record and report test"
+ if ! check_c2c_support ; then
+ echo "c2c record and report test [Skipped: perf c2c record failed (possibly missing hardware support)]"
+ err=2
+ return
+ fi
+
+ # Run a workload that does some memory operations.
+ if ! perf c2c record -o "${perfdata}" -- perf test -w datasym 1 > /dev/null 2>&1 ; then
+ echo "c2c record and report test [Skipped: perf c2c record failed during workload]"
+ return
+ fi
+
+ if ! perf c2c report -i "${perfdata}" --stdio > /dev/null 2>&1 ; then
+ echo "c2c record and report test [Failed: report failed]"
+ err=1
+ return
+ fi
+
+ if ! perf c2c report -i "${perfdata}" -N > /dev/null 2>&1 ; then
+ echo "c2c record and report test [Failed: report -N failed]"
+ err=1
+ return
+ fi
+
+ echo "c2c record and report test [Success]"
+}
+
+test_c2c_record_report
+cleanup
+exit $err