[PATCH v4 19/21] perf tests: Mark the shell tests not mapping perf ring buffers
From: Arnaldo Carvalho de Melo
Date: Fri Oct 16 2026 - 17:28:46 EST
From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Shell tests run perf, that maps ring buffers, so they take a turn using
the per user budget in kernel.perf_event_mlock_kb by default; the ones
that don't map them, like the ones running just 'perf stat', say
" (no_mlock)" in their description line and thus keep running in parallel
with the ones taking turns.
The 'perf sched stats' tests are among them, they synthesize the samples
from /proc/schedstat without mapping a ring buffer, and the tests already
marked " (exclusive)" don't need it, exclusive implies every other
requisite and keeps them running alone.
Assisted-by: LLM
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/tests/shell/drm_pmu.sh | 2 +-
tools/perf/tests/shell/ftrace.sh | 2 +-
tools/perf/tests/shell/kallsyms.sh | 2 +-
tools/perf/tests/shell/list.sh | 2 +-
tools/perf/tests/shell/perf_sched_stats.sh | 2 +-
tools/perf/tests/shell/probe_vfs_getname.sh | 2 +-
tools/perf/tests/shell/python-use.sh | 2 +-
tools/perf/tests/shell/schedstat_snapshots.sh | 2 +-
tools/perf/tests/shell/stat+csv_output.sh | 2 +-
tools/perf/tests/shell/stat+csv_summary.sh | 2 +-
tools/perf/tests/shell/stat+event_uniquifying.sh | 2 +-
tools/perf/tests/shell/stat+json_output.sh | 2 +-
tools/perf/tests/shell/stat+shadow_stat.sh | 2 +-
tools/perf/tests/shell/stat+std_output.sh | 2 +-
tools/perf/tests/shell/stat.sh | 2 +-
tools/perf/tests/shell/stat_all_metricgroups.sh | 2 +-
tools/perf/tests/shell/stat_all_metrics.sh | 2 +-
tools/perf/tests/shell/stat_all_pfm.sh | 2 +-
tools/perf/tests/shell/stat_bpf_counters_cgrp.sh | 2 +-
tools/perf/tests/shell/stat_metrics_cgrp.sh | 2 +-
tools/perf/tests/shell/stat_metrics_values.sh | 2 +-
tools/perf/tests/shell/test_ilist_python.sh | 2 +-
tools/perf/tests/shell/test_stat_cpi_python.sh | 2 +-
tools/perf/tests/shell/test_test_junit_output.sh | 5 ++++-
tools/perf/tests/shell/test_uprobe_from_different_cu.sh | 2 +-
25 files changed, 28 insertions(+), 25 deletions(-)
diff --git a/tools/perf/tests/shell/drm_pmu.sh b/tools/perf/tests/shell/drm_pmu.sh
index e629fe0e8463d6cc..c827e613fc66ee0f 100755
--- a/tools/perf/tests/shell/drm_pmu.sh
+++ b/tools/perf/tests/shell/drm_pmu.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# DRM PMU
+# DRM PMU (no_mlock)
# SPDX-License-Identifier: GPL-2.0
set -e
diff --git a/tools/perf/tests/shell/ftrace.sh b/tools/perf/tests/shell/ftrace.sh
index 9f6e590f6437b2d9..84d6126bf94d1e61 100755
--- a/tools/perf/tests/shell/ftrace.sh
+++ b/tools/perf/tests/shell/ftrace.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf ftrace tests
+# perf ftrace tests (no_mlock)
# SPDX-License-Identifier: GPL-2.0
set -e
diff --git a/tools/perf/tests/shell/kallsyms.sh b/tools/perf/tests/shell/kallsyms.sh
index d0eb99753f477f57..e3674cc52b30983f 100755
--- a/tools/perf/tests/shell/kallsyms.sh
+++ b/tools/perf/tests/shell/kallsyms.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf kallsyms tests
+# perf kallsyms tests (no_mlock)
# SPDX-License-Identifier: GPL-2.0
err=0
diff --git a/tools/perf/tests/shell/list.sh b/tools/perf/tests/shell/list.sh
index 14a03e0290ed1b4d..d4a0b04154d636f0 100755
--- a/tools/perf/tests/shell/list.sh
+++ b/tools/perf/tests/shell/list.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf list tests
+# perf list tests (no_mlock)
# SPDX-License-Identifier: GPL-2.0
set -e
diff --git a/tools/perf/tests/shell/perf_sched_stats.sh b/tools/perf/tests/shell/perf_sched_stats.sh
index f13eb0a75b76ef5a..4ede9d701630c719 100755
--- a/tools/perf/tests/shell/perf_sched_stats.sh
+++ b/tools/perf/tests/shell/perf_sched_stats.sh
@@ -1,5 +1,5 @@
#!/bin/sh
-# perf sched stats tests
+# perf sched stats tests (no_mlock)
# SPDX-License-Identifier: GPL-2.0
set -e
diff --git a/tools/perf/tests/shell/probe_vfs_getname.sh b/tools/perf/tests/shell/probe_vfs_getname.sh
index c40e5f3f0825b051..43bdd693076b408c 100755
--- a/tools/perf/tests/shell/probe_vfs_getname.sh
+++ b/tools/perf/tests/shell/probe_vfs_getname.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# Add vfs_getname probe to get syscall args filenames
+# Add vfs_getname probe to get syscall args filenames (no_mlock)
# SPDX-License-Identifier: GPL-2.0
# Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>, 2017
diff --git a/tools/perf/tests/shell/python-use.sh b/tools/perf/tests/shell/python-use.sh
index 2d6017d5dd9d9eab..ece4d306869ae48e 100755
--- a/tools/perf/tests/shell/python-use.sh
+++ b/tools/perf/tests/shell/python-use.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# 'import perf' in python
+# 'import perf' in python (no_mlock)
# SPDX-License-Identifier: GPL-2.0
# Just test if we can load the python binding.
set -e
diff --git a/tools/perf/tests/shell/schedstat_snapshots.sh b/tools/perf/tests/shell/schedstat_snapshots.sh
index a4bdf2673d43ccc0..2050478e3f1a682f 100755
--- a/tools/perf/tests/shell/schedstat_snapshots.sh
+++ b/tools/perf/tests/shell/schedstat_snapshots.sh
@@ -1,5 +1,5 @@
#!/bin/sh
-# Validate CPU and domain pairing in perf sched stats snapshots
+# Validate CPU and domain pairing in perf sched stats snapshots (no_mlock)
# SPDX-License-Identifier: GPL-2.0
set -e
diff --git a/tools/perf/tests/shell/stat+csv_output.sh b/tools/perf/tests/shell/stat+csv_output.sh
index a5b34c42e8d72aff..8beb6c674d055a52 100755
--- a/tools/perf/tests/shell/stat+csv_output.sh
+++ b/tools/perf/tests/shell/stat+csv_output.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf stat CSV output linter
+# perf stat CSV output linter (no_mlock)
# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
# Tests various perf stat CSV output commands for the
# correct number of fields and the CSV separator set to ','.
diff --git a/tools/perf/tests/shell/stat+csv_summary.sh b/tools/perf/tests/shell/stat+csv_summary.sh
index 9a4353db3825ede9..6d8beb88fb6f300a 100755
--- a/tools/perf/tests/shell/stat+csv_summary.sh
+++ b/tools/perf/tests/shell/stat+csv_summary.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf stat csv summary test
+# perf stat csv summary test (no_mlock)
# SPDX-License-Identifier: GPL-2.0
set -e
diff --git a/tools/perf/tests/shell/stat+event_uniquifying.sh b/tools/perf/tests/shell/stat+event_uniquifying.sh
index b5dec6b6da369382..f5c6fa30d8db38d1 100755
--- a/tools/perf/tests/shell/stat+event_uniquifying.sh
+++ b/tools/perf/tests/shell/stat+event_uniquifying.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf stat events uniquifying
+# perf stat events uniquifying (no_mlock)
# SPDX-License-Identifier: GPL-2.0
set -e
diff --git a/tools/perf/tests/shell/stat+json_output.sh b/tools/perf/tests/shell/stat+json_output.sh
index 4969ad70b67b6196..cbf7a4ffd7e8ab4f 100755
--- a/tools/perf/tests/shell/stat+json_output.sh
+++ b/tools/perf/tests/shell/stat+json_output.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf stat JSON output linter
+# perf stat JSON output linter (no_mlock)
# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
# Checks various perf stat JSON output commands for the
# correct number of fields.
diff --git a/tools/perf/tests/shell/stat+shadow_stat.sh b/tools/perf/tests/shell/stat+shadow_stat.sh
index cabbbf17c662df23..7a58e1507ce27957 100755
--- a/tools/perf/tests/shell/stat+shadow_stat.sh
+++ b/tools/perf/tests/shell/stat+shadow_stat.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf stat metrics (shadow stat) test
+# perf stat metrics (shadow stat) test (no_mlock)
# SPDX-License-Identifier: GPL-2.0
set -e
diff --git a/tools/perf/tests/shell/stat+std_output.sh b/tools/perf/tests/shell/stat+std_output.sh
index 64c2b81f02deb18b..b915656a20f69d68 100755
--- a/tools/perf/tests/shell/stat+std_output.sh
+++ b/tools/perf/tests/shell/stat+std_output.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf stat STD output linter
+# perf stat STD output linter (no_mlock)
# SPDX-License-Identifier: GPL-2.0
# Tests various perf stat STD output commands for
# default event and metricgroup
diff --git a/tools/perf/tests/shell/stat.sh b/tools/perf/tests/shell/stat.sh
index 1f5d4cc05807a247..ac9e031831daca9c 100755
--- a/tools/perf/tests/shell/stat.sh
+++ b/tools/perf/tests/shell/stat.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf stat tests
+# perf stat tests (no_mlock)
# SPDX-License-Identifier: GPL-2.0
set -e
diff --git a/tools/perf/tests/shell/stat_all_metricgroups.sh b/tools/perf/tests/shell/stat_all_metricgroups.sh
index 81bc7070b5ab0d5c..074a437da0ae3dce 100755
--- a/tools/perf/tests/shell/stat_all_metricgroups.sh
+++ b/tools/perf/tests/shell/stat_all_metricgroups.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf all metricgroups test
+# perf all metricgroups test (no_mlock)
# SPDX-License-Identifier: GPL-2.0
ParanoidAndNotRoot()
diff --git a/tools/perf/tests/shell/stat_all_metrics.sh b/tools/perf/tests/shell/stat_all_metrics.sh
index df5fa27b21ae28d8..9d0d4b8a217e6730 100755
--- a/tools/perf/tests/shell/stat_all_metrics.sh
+++ b/tools/perf/tests/shell/stat_all_metrics.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf all metrics test
+# perf all metrics test (no_mlock)
# SPDX-License-Identifier: GPL-2.0
ParanoidAndNotRoot()
diff --git a/tools/perf/tests/shell/stat_all_pfm.sh b/tools/perf/tests/shell/stat_all_pfm.sh
index c08c186af2c42e84..78d8006fb729c8f4 100755
--- a/tools/perf/tests/shell/stat_all_pfm.sh
+++ b/tools/perf/tests/shell/stat_all_pfm.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf all libpfm4 events test
+# perf all libpfm4 events test (no_mlock)
# SPDX-License-Identifier: GPL-2.0
if perf version --build-options | grep HAVE_LIBPFM | grep -q OFF
diff --git a/tools/perf/tests/shell/stat_bpf_counters_cgrp.sh b/tools/perf/tests/shell/stat_bpf_counters_cgrp.sh
index febe3af0644157f3..d1b4632c17a3e8e1 100755
--- a/tools/perf/tests/shell/stat_bpf_counters_cgrp.sh
+++ b/tools/perf/tests/shell/stat_bpf_counters_cgrp.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf stat --bpf-counters --for-each-cgroup test
+# perf stat --bpf-counters --for-each-cgroup test (no_mlock)
# SPDX-License-Identifier: GPL-2.0
set -e
diff --git a/tools/perf/tests/shell/stat_metrics_cgrp.sh b/tools/perf/tests/shell/stat_metrics_cgrp.sh
index 0728f48f21fa971d..75b8e01d11cc7ff3 100755
--- a/tools/perf/tests/shell/stat_metrics_cgrp.sh
+++ b/tools/perf/tests/shell/stat_metrics_cgrp.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf stat metrics --for-each-cgroup test
+# perf stat metrics --for-each-cgroup test (no_mlock)
# SPDX-License-Identifier: GPL-2.0
set -e
diff --git a/tools/perf/tests/shell/stat_metrics_values.sh b/tools/perf/tests/shell/stat_metrics_values.sh
index 0982f6b9737a780f..3e073a0e5b9f9b99 100755
--- a/tools/perf/tests/shell/stat_metrics_values.sh
+++ b/tools/perf/tests/shell/stat_metrics_values.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf metrics value validation
+# perf metrics value validation (no_mlock)
# SPDX-License-Identifier: GPL-2.0
shelldir=$(dirname "$0")
diff --git a/tools/perf/tests/shell/test_ilist_python.sh b/tools/perf/tests/shell/test_ilist_python.sh
index 83048474710d2857..a235539c01767ee5 100755
--- a/tools/perf/tests/shell/test_ilist_python.sh
+++ b/tools/perf/tests/shell/test_ilist_python.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# perf script ilist and perf list --tui test
+# perf script ilist and perf list --tui test (no_mlock)
# SPDX-License-Identifier: GPL-2.0
set -e
diff --git a/tools/perf/tests/shell/test_stat_cpi_python.sh b/tools/perf/tests/shell/test_stat_cpi_python.sh
index 6cb376c92e2f13a7..d1571a20f4683d73 100755
--- a/tools/perf/tests/shell/test_stat_cpi_python.sh
+++ b/tools/perf/tests/shell/test_stat_cpi_python.sh
@@ -1,6 +1,6 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
-# stat-cpi python test
+# stat-cpi python test (no_mlock)
set -e
diff --git a/tools/perf/tests/shell/test_test_junit_output.sh b/tools/perf/tests/shell/test_test_junit_output.sh
index 38a29e646906e3aa..8fc92e083c342a5c 100755
--- a/tools/perf/tests/shell/test_test_junit_output.sh
+++ b/tools/perf/tests/shell/test_test_junit_output.sh
@@ -1,6 +1,9 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
-# perf test junit XML output validation
+# perf test junit XML output validation (no_mlock)
+#
+# Waiving the mlock requisite this way holds only while the 'perf test'
+# runs below keep picking tests that don't map ring buffers.
set -e
diff --git a/tools/perf/tests/shell/test_uprobe_from_different_cu.sh b/tools/perf/tests/shell/test_uprobe_from_different_cu.sh
index 33bf36c4037e45ae..0a02ff9b86d6f326 100755
--- a/tools/perf/tests/shell/test_uprobe_from_different_cu.sh
+++ b/tools/perf/tests/shell/test_uprobe_from_different_cu.sh
@@ -1,5 +1,5 @@
#!/bin/bash
-# test perf probe of function from different CU
+# test perf probe of function from different CU (no_mlock)
# SPDX-License-Identifier: GPL-2.0
set -e
--
2.55.0