perf test: Speed up some tests using perf list

On my system, perf list is very slow to print the whole events.  I think
there's a performance issue in SDT and uprobes event listing.  I noticed
this issue while running perf test on x86 but it takes long to check
some CoreSight event which should be skipped quickly.

Anyway, some test uses perf list to check whether the required event is
available before running the test.  The perf list command can take an
argument to specify event class or (glob) pattern.  But glob pattern is
only to suppress output for unmatched ones after checking all events.

In this case, specifying event class is better to reduce the number of
events it checks and to avoid buggy subsystems entirely.

No functional changes intended.

Reviewed-by: James Clark <james.clark@linaro.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Carsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@arm.com>
Link: https://lore.kernel.org/r/20241016065654.269994-1-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

Author: namhyung

tools/perf/tests/shell/lib/coresight.sh

@@ -18,7 +18,7 @@ BIN="$DIR/$TEST"
 # If the test tool/binary does not exist and is executable then skip the test
 if ! test -x "$BIN"; then exit 2; fi
 # If CoreSight is not available, skip the test
-perf list cs_etm | grep -q cs_etm || exit 2
+perf list pmu | grep -q cs_etm || exit 2
 DATD="."
 # If the data dir env is set then make the data dir use that instead of ./
 if test -n "$PERF_TEST_CORESIGHT_DATADIR"; then

tools/perf/tests/shell/lock_contention.sh

@@ -27,7 +27,7 @@ check() {
 		exit
 	fi
 
-	if ! perf list | grep -q lock:contention_begin; then
+	if ! perf list tracepoint | grep -q lock:contention_begin; then
 		echo "[Skip] No lock contention tracepoints"
 		err=2
 		exit

tools/perf/tests/shell/record.sh

@@ -94,7 +94,7 @@ test_per_thread() {
 
 test_register_capture() {
   echo "Register capture test"
-  if ! perf list | grep -q 'br_inst_retired.near_call'
+  if ! perf list pmu | grep -q 'br_inst_retired.near_call'
   then
     echo "Register capture test [Skipped missing event]"
     return

tools/perf/tests/shell/test_arm_coresight.sh

@@ -12,7 +12,7 @@
 glb_err=0
 
 skip_if_no_cs_etm_event() {
-	perf list | grep -q 'cs_etm//' && return 0
+	perf list pmu | grep -q 'cs_etm//' && return 0
 
 	# cs_etm event doesn't exist
 	return 2

tools/perf/tests/shell/test_arm_coresight_disasm.sh

@@ -8,7 +8,7 @@
 # the script. Test all 3 parts are working correctly by running the script.
 
 skip_if_no_cs_etm_event() {
-	perf list | grep -q 'cs_etm//' && return 0
+	perf list pmu | grep -q 'cs_etm//' && return 0
 
 	# cs_etm event doesn't exist
 	return 2

tools/perf/tests/shell/test_arm_spe.sh

@@ -9,7 +9,7 @@
 # German Gomez <german.gomez@arm.com>, 2021
 
 skip_if_no_arm_spe_event() {
-	perf list | grep -E -q 'arm_spe_[0-9]+//' && return 0
+	perf list pmu | grep -E -q 'arm_spe_[0-9]+//' && return 0
 
 	# arm_spe event doesn't exist
 	return 2

tools/perf/tests/shell/test_arm_spe_fork.sh

@@ -5,7 +5,7 @@
 # German Gomez <german.gomez@arm.com>, 2022
 
 skip_if_no_arm_spe_event() {
-	perf list | grep -E -q 'arm_spe_[0-9]+//' && return 0
+	perf list pmu | grep -E -q 'arm_spe_[0-9]+//' && return 0
 	return 2
 }
 

tools/perf/tests/shell/test_intel_pt.sh

@@ -5,7 +5,7 @@
 set -e
 
 # Skip if no Intel PT
-perf list | grep -q 'intel_pt//' || exit 2
+perf list pmu | grep -q 'intel_pt//' || exit 2
 
 shelldir=$(dirname "$0")
 # shellcheck source=lib/waiting.sh

tools/perf/tests/shell/trace+probe_vfs_getname.sh

@@ -19,7 +19,7 @@ skip_if_no_perf_trace || exit 2
 . "$(dirname $0)"/lib/probe_vfs_getname.sh
 
 trace_open_vfs_getname() {
-	evts="$(echo "$(perf list syscalls:sys_enter_open* 2>/dev/null | grep -E 'open(at)? ' | sed -r 's/.*sys_enter_([a-z]+) +\[.*$/\1/')" | sed ':a;N;s:\n:,:g')"
+	evts="$(echo "$(perf list tracepoint 2>/dev/null | grep -E 'syscalls:sys_enter_open(at)? ' | sed -r 's/.*sys_enter_([a-z]+) +\[.*$/\1/')" | sed ':a;N;s:\n:,:g')"
 	perf trace -e $evts touch $file 2>&1 | \
 	grep -E " +[0-9]+\.[0-9]+ +\( +[0-9]+\.[0-9]+ ms\): +touch/[0-9]+ open(at)?\((dfd: +CWD, +)?filename: +\"?${file}\"?, +flags: CREAT\|NOCTTY\|NONBLOCK\|WRONLY, +mode: +IRUGO\|IWUGO\) += +[0-9]+$"
 }