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Diffstat (limited to 'tools/perf/tests/shell/test_intel_pt.sh')
-rwxr-xr-xtools/perf/tests/shell/test_intel_pt.sh195
1 files changed, 194 insertions, 1 deletions
diff --git a/tools/perf/tests/shell/test_intel_pt.sh b/tools/perf/tests/shell/test_intel_pt.sh
index e0bf75981b9c..4c0aabbe33bd 100755
--- a/tools/perf/tests/shell/test_intel_pt.sh
+++ b/tools/perf/tests/shell/test_intel_pt.sh
@@ -23,6 +23,7 @@ errfile="${temp_dir}/test-err.txt"
workload="${temp_dir}/workload"
awkscript="${temp_dir}/awkscript"
jitdump_workload="${temp_dir}/jitdump_workload"
+maxbrstack="${temp_dir}/maxbrstack.py"
cleanup()
{
@@ -422,7 +423,7 @@ test_jitdump()
# Should be no errors
if [ "${decode_err_cnt}" -ne 0 ] ; then
echo "Decode failed, ${decode_err_cnt} errors"
- perf script -i "${perfdatafile}" --itrace=e-o-l
+ perf script -i "${perfdatafile}" --itrace=e-o-l --show-mmap-events | cat
return 1
fi
@@ -430,6 +431,189 @@ test_jitdump()
return 0
}
+test_packet_filter()
+{
+ echo "--- Test with MTC and TSC disabled ---"
+ # Disable MTC and TSC
+ perf_record_no_decode -o "${perfdatafile}" -e intel_pt/mtc=0,tsc=0/u uname
+ # Should not get MTC packet
+ mtc_cnt=$(perf script -i "${perfdatafile}" -D 2>/dev/null | grep -c "MTC 0x")
+ if [ "${mtc_cnt}" -ne 0 ] ; then
+ echo "Failed to filter with mtc=0"
+ return 1
+ fi
+ # Should not get TSC package
+ tsc_cnt=$(perf script -i "${perfdatafile}" -D 2>/dev/null | grep -c "TSC 0x")
+ if [ "${tsc_cnt}" -ne 0 ] ; then
+ echo "Failed to filter with tsc=0"
+ return 1
+ fi
+ echo OK
+ return 0
+}
+
+test_disable_branch()
+{
+ echo "--- Test with branches disabled ---"
+ # Disable branch
+ perf_record_no_decode -o "${perfdatafile}" -e intel_pt/branch=0/u uname
+ # Should not get branch related packets
+ tnt_cnt=$(perf script -i "${perfdatafile}" -D 2>/dev/null | grep -c "TNT 0x")
+ tip_cnt=$(perf script -i "${perfdatafile}" -D 2>/dev/null | grep -c "TIP 0x")
+ fup_cnt=$(perf script -i "${perfdatafile}" -D 2>/dev/null | grep -c "FUP 0x")
+ if [ "${tnt_cnt}" -ne 0 ] || [ "${tip_cnt}" -ne 0 ] || [ "${fup_cnt}" -ne 0 ] ; then
+ echo "Failed to disable branches"
+ return 1
+ fi
+ echo OK
+ return 0
+}
+
+test_time_cyc()
+{
+ echo "--- Test with/without CYC ---"
+ # Check if CYC is supported
+ cyc=$(cat /sys/bus/event_source/devices/intel_pt/caps/psb_cyc)
+ if [ "${cyc}" != "1" ] ; then
+ echo "SKIP: CYC is not supported"
+ return 2
+ fi
+ # Enable CYC
+ perf_record_no_decode -o "${perfdatafile}" -e intel_pt/cyc/u uname
+ # should get CYC packets
+ cyc_cnt=$(perf script -i "${perfdatafile}" -D 2>/dev/null | grep -c "CYC 0x")
+ if [ "${cyc_cnt}" = "0" ] ; then
+ echo "Failed to get CYC packet"
+ return 1
+ fi
+ # Without CYC
+ perf_record_no_decode -o "${perfdatafile}" -e intel_pt//u uname
+ # Should not get CYC packets
+ cyc_cnt=$(perf script -i "${perfdatafile}" -D 2>/dev/null | grep -c "CYC 0x")
+ if [ "${cyc_cnt}" -gt 0 ] ; then
+ echo "Still get CYC packet without cyc"
+ return 1
+ fi
+ echo OK
+ return 0
+}
+
+test_sample()
+{
+ echo "--- Test recording with sample mode ---"
+ # Check if recording with sample mode is working
+ if ! perf_record_no_decode -o "${perfdatafile}" --aux-sample=8192 -e '{intel_pt//u,branch-misses:u}' uname ; then
+ echo "perf record failed with --aux-sample"
+ return 1
+ fi
+ echo OK
+ return 0
+}
+
+test_kernel_trace()
+{
+ echo "--- Test with kernel trace ---"
+ # Check if recording with kernel trace is working
+ can_kernel || return 2
+ if ! perf_record_no_decode -o "${perfdatafile}" -e intel_pt//k -m1,128 uname ; then
+ echo "perf record failed with intel_pt//k"
+ return 1
+ fi
+ echo OK
+ return 0
+}
+
+test_virtual_lbr()
+{
+ echo "--- Test virtual LBR ---"
+
+ # Python script to determine the maximum size of branch stacks
+ cat << "_end_of_file_" > "${maxbrstack}"
+from __future__ import print_function
+
+bmax = 0
+
+def process_event(param_dict):
+ if "brstack" in param_dict:
+ brstack = param_dict["brstack"]
+ n = len(brstack)
+ global bmax
+ if n > bmax:
+ bmax = n
+
+def trace_end():
+ print("max brstack", bmax)
+_end_of_file_
+
+ # Check if virtual lbr is working
+ perf_record_no_bpf -o "${perfdatafile}" --aux-sample -e '{intel_pt//,cycles}:u' uname
+ times_val=$(perf script -i "${perfdatafile}" --itrace=L -s "${maxbrstack}" 2>/dev/null | grep "max brstack " | cut -d " " -f 3)
+ case "${times_val}" in
+ [0-9]*) ;;
+ *) times_val=0;;
+ esac
+ if [ "${times_val}" -lt 2 ] ; then
+ echo "Failed with virtual lbr"
+ return 1
+ fi
+ echo OK
+ return 0
+}
+
+test_power_event()
+{
+ echo "--- Test power events ---"
+ # Check if power events are supported
+ power_event=$(cat /sys/bus/event_source/devices/intel_pt/caps/power_event_trace)
+ if [ "${power_event}" != "1" ] ; then
+ echo "SKIP: power_event_trace is not supported"
+ return 2
+ fi
+ if ! perf_record_no_decode -o "${perfdatafile}" -a -e intel_pt/pwr_evt/u uname ; then
+ echo "perf record failed with pwr_evt"
+ return 1
+ fi
+ echo OK
+ return 0
+}
+
+test_no_tnt()
+{
+ echo "--- Test with TNT packets disabled ---"
+ # Check if TNT disable is supported
+ notnt=$(cat /sys/bus/event_source/devices/intel_pt/caps/tnt_disable)
+ if [ "${notnt}" != "1" ] ; then
+ echo "SKIP: tnt_disable is not supported"
+ return 2
+ fi
+ perf_record_no_decode -o "${perfdatafile}" -e intel_pt/notnt/u uname
+ # Should be no TNT packets
+ tnt_cnt=$(perf script -i "${perfdatafile}" -D | grep -c TNT)
+ if [ "${tnt_cnt}" -ne 0 ] ; then
+ echo "TNT packets still there after notnt"
+ return 1
+ fi
+ echo OK
+ return 0
+}
+
+test_event_trace()
+{
+ echo "--- Test with event_trace ---"
+ # Check if event_trace is supported
+ event_trace=$(cat /sys/bus/event_source/devices/intel_pt/caps/event_trace)
+ if [ "${event_trace}" != 1 ] ; then
+ echo "SKIP: event_trace is not supported"
+ return 2
+ fi
+ if ! perf_record_no_decode -o "${perfdatafile}" -e intel_pt/event/u uname ; then
+ echo "perf record failed with event trace"
+ return 1
+ fi
+ echo OK
+ return 0
+}
+
count_result()
{
if [ "$1" -eq 2 ] ; then
@@ -448,6 +632,15 @@ test_system_wide_side_band || ret=$? ; count_result $ret ; ret=0
test_per_thread "" "" || ret=$? ; count_result $ret ; ret=0
test_per_thread "k" "(incl. kernel) " || ret=$? ; count_result $ret ; ret=0
test_jitdump || ret=$? ; count_result $ret ; ret=0
+test_packet_filter || ret=$? ; count_result $ret ; ret=0
+test_disable_branch || ret=$? ; count_result $ret ; ret=0
+test_time_cyc || ret=$? ; count_result $ret ; ret=0
+test_sample || ret=$? ; count_result $ret ; ret=0
+test_kernel_trace || ret=$? ; count_result $ret ; ret=0
+test_virtual_lbr || ret=$? ; count_result $ret ; ret=0
+test_power_event || ret=$? ; count_result $ret ; ret=0
+test_no_tnt || ret=$? ; count_result $ret ; ret=0
+test_event_trace || ret=$? ; count_result $ret ; ret=0
cleanup