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authorNamhyung Kim <namhyung@kernel.org>2022-12-19 12:17:32 -0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-12-21 14:52:39 -0300
commitcb459c89b734f9fcfd201a6ef993c063a703ec73 (patch)
tree944bf3c772a88e91f37805c730f80b0831b48d37 /tools/perf/tests
parent5e3febe7b7b99f942311ddfa05bb06910d06b14d (diff)
downloadlinux-cb459c89b734f9fcfd201a6ef993c063a703ec73.tar.bz2
perf test: Update 'perf lock contention' test
Add more tests for the new filters. $ sudo perf test contention -v 87: kernel lock contention analysis test : --- start --- test child forked, pid 412379 Testing perf lock record and perf lock contention Testing perf lock contention --use-bpf Testing perf lock record and perf lock contention at the same time Testing perf lock contention --threads Testing perf lock contention --lock-addr Testing perf lock contention --type-filter Testing perf lock contention --lock-filter test child finished with 0 ---- end ---- kernel lock contention analysis test: Ok Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Blake Jones <blakejones@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: bpf@vger.kernel.org Link: https://lore.kernel.org/r/20221219201732.460111-7-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/tests')
-rwxr-xr-xtools/perf/tests/shell/lock_contention.sh58
1 files changed, 57 insertions, 1 deletions
diff --git a/tools/perf/tests/shell/lock_contention.sh b/tools/perf/tests/shell/lock_contention.sh
index cc9ceb9e19ca..b05f1b1ca6c8 100755
--- a/tools/perf/tests/shell/lock_contention.sh
+++ b/tools/perf/tests/shell/lock_contention.sh
@@ -115,7 +115,7 @@ test_aggr_addr()
fi
# the perf lock contention output goes to the stderr
- perf lock con -a -b -t -E 1 -q -- perf bench sched messaging > /dev/null 2> ${result}
+ perf lock con -a -b -l -E 1 -q -- perf bench sched messaging > /dev/null 2> ${result}
if [ $(cat "${result}" | wc -l) != "1" ]; then
echo "[Fail] BPF result count is not 1:" $(cat "${result}" | wc -l)
err=1
@@ -123,6 +123,60 @@ test_aggr_addr()
fi
}
+test_type_filter()
+{
+ echo "Testing perf lock contention --type-filter (w/ spinlock)"
+ perf lock contention -i ${perfdata} -Y spinlock -q 2> ${result}
+ if [ $(grep -c -v spinlock "${result}") != "0" ]; then
+ echo "[Fail] Recorded should not have non-spinlocks:" $(cat "${result}")
+ err=1
+ exit
+ fi
+
+ if ! perf lock con -b true > /dev/null 2>&1 ; then
+ return
+ fi
+
+ perf lock con -a -b -Y spinlock -q -- perf bench sched messaging > /dev/null 2> ${result}
+ if [ $(grep -c -v spinlock "${result}") != "0" ]; then
+ echo "[Fail] Recorded should not have non-spinlocks:" $(cat "${result}")
+ err=1
+ exit
+ fi
+}
+
+test_lock_filter()
+{
+ echo "Testing perf lock contention --lock-filter (w/ tasklist_lock)"
+ perf lock contention -i ${perfdata} -l -q 2> ${result}
+ if [ $(grep -c tasklist_lock "${result}") != "1" ]; then
+ echo "[Skip] Could not find 'tasklist_lock'"
+ return
+ fi
+
+ perf lock contention -i ${perfdata} -L tasklist_lock -q 2> ${result}
+
+ # find out the type of tasklist_lock
+ local type=$(head -1 "${result}" | awk '{ print $8 }' | sed -e 's/:.*//')
+
+ if [ $(grep -c -v "${type}" "${result}") != "0" ]; then
+ echo "[Fail] Recorded should not have non-${type} locks:" $(cat "${result}")
+ err=1
+ exit
+ fi
+
+ if ! perf lock con -b true > /dev/null 2>&1 ; then
+ return
+ fi
+
+ perf lock con -a -b -L tasklist_lock -q -- perf bench sched messaging > /dev/null 2> ${result}
+ if [ $(grep -c -v "${type}" "${result}") != "0" ]; then
+ echo "[Fail] Recorded should not have non-${type} locks:" $(cat "${result}")
+ err=1
+ exit
+ fi
+}
+
check
test_record
@@ -130,5 +184,7 @@ test_bpf
test_record_concurrent
test_aggr_task
test_aggr_addr
+test_type_filter
+test_lock_filter
exit ${err}