perf tests: Mark the shell tests not mapping perf ring buffers

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.

Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Ian Rogers <irogers@google.com>
Assisted-by: LLM
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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

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

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

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

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

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@kernel.org>, 2017
 

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

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

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 ','.

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

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

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.

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

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

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

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()

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()

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

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

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

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")

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

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
 

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
 

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