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Message-Id: <20230531163405.2200292-7-longman@redhat.com>
Date: Wed, 31 May 2023 12:34:05 -0400
From: Waiman Long <longman@...hat.com>
To: Tejun Heo <tj@...nel.org>, Zefan Li <lizefan.x@...edance.com>,
Johannes Weiner <hannes@...xchg.org>,
Jonathan Corbet <corbet@....net>, Shuah Khan <shuah@...nel.org>
Cc: linux-kernel@...r.kernel.org, cgroups@...r.kernel.org,
linux-doc@...r.kernel.org, linux-kselftest@...r.kernel.org,
Juri Lelli <juri.lelli@...hat.com>,
Valentin Schneider <vschneid@...hat.com>,
Frederic Weisbecker <frederic@...nel.org>,
Mrunal Patel <mpatel@...hat.com>,
Ryan Phillips <rphillips@...hat.com>,
Brent Rowsell <browsell@...hat.com>,
Peter Hunt <pehunt@...hat.com>, Phil Auld <pauld@...hat.com>,
Waiman Long <longman@...hat.com>
Subject: [PATCH v2 6/6] cgroup/cpuset: Extend test_cpuset_prs.sh to test remote partition
This patch extends the test_cpuset_prs.sh test script to support testing
the new remote partition and use the new "cpuset.cpus.reserve" file of
the root cgroup by adding new tests for them. In addition, the following
changes are also made:
1) Run the state transition tests directly under root to ease testing
of remote partition and remove the unneeded test column.
2) Add support for the .__DEBUG__.cpuset.cpus.subpartitions file if
"cgroup_debug" kernel boot option is specified and a new column
into TEST_MATRIX for testing against this cgroup control file.
3) Add another column to for the list of expected isolated CPUs and
compare it with the actual value by looking at the state of
/sys/kernel/debug/sched/domains which will be available if the
verbose flag is set.
Signed-off-by: Waiman Long <longman@...hat.com>
---
.../selftests/cgroup/test_cpuset_prs.sh | 403 ++++++++++++------
1 file changed, 267 insertions(+), 136 deletions(-)
diff --git a/tools/testing/selftests/cgroup/test_cpuset_prs.sh b/tools/testing/selftests/cgroup/test_cpuset_prs.sh
index 2b5215cc599f..8054b2f16a4f 100755
--- a/tools/testing/selftests/cgroup/test_cpuset_prs.sh
+++ b/tools/testing/selftests/cgroup/test_cpuset_prs.sh
@@ -3,9 +3,13 @@
#
# Test for cpuset v2 partition root state (PRS)
#
-# The sched verbose flag is set, if available, so that the console log
+# The sched verbose flag can be optionally set so that the console log
# can be examined for the correct setting of scheduling domain.
#
+# Due to RCU freeing of dying cpusets, this test may report effective cpus
+# reset failure if the system is not able to clean up those cpusets in time.
+# Repeat the test with the -d option to increase the delay factor may help.
+#
skip_test() {
echo "$1"
@@ -22,27 +26,27 @@ WAIT_INOTIFY=$(cd $(dirname $0); pwd)/wait_inotify
# Find cgroup v2 mount point
CGROUP2=$(mount -t cgroup2 | head -1 | awk -e '{print $3}')
[[ -n "$CGROUP2" ]] || skip_test "Cgroup v2 mount point not found!"
+RESERVE_CPUS=$CGROUP2/cpuset.cpus.reserve
+CPULIST=$(cat $CGROUP2/cpuset.cpus.effective)
-CPUS=$(lscpu | grep "^CPU(s):" | sed -e "s/.*:[[:space:]]*//")
-[[ $CPUS -lt 8 ]] && skip_test "Test needs at least 8 cpus available!"
+NR_CPUS=$(lscpu | grep "^CPU(s):" | sed -e "s/.*:[[:space:]]*//")
+[[ $NR_CPUS -lt 8 ]] && skip_test "Test needs at least 8 cpus available!"
# Set verbose flag and delay factor
PROG=$1
-VERBOSE=
+VERBOSE=0
DELAY_FACTOR=1
SCHED_DEBUG=
while [[ "$1" = -* ]]
do
case "$1" in
- -v) VERBOSE=1
+ -v) ((VERBOSE++))
# Enable sched/verbose can slow thing down
[[ $DELAY_FACTOR -eq 1 ]] &&
DELAY_FACTOR=2
- break
;;
-d) DELAY_FACTOR=$2
shift
- break
;;
*) echo "Usage: $PROG [-v] [-d <delay-factor>"
exit
@@ -52,7 +56,7 @@ do
done
# Set sched verbose flag if available when "-v" option is specified
-if [[ -n "$VERBOSE" && -d /sys/kernel/debug/sched ]]
+if [[ $VERBOSE -gt 0 && -d /sys/kernel/debug/sched ]]
then
# Used to restore the original setting during cleanup
SCHED_DEBUG=$(cat /sys/kernel/debug/sched/verbose)
@@ -61,15 +65,28 @@ fi
cd $CGROUP2
echo +cpuset > cgroup.subtree_control
+
+#
+# If cpuset has been set up and used in child cgroups, we may not be able to
+# create partition under root cgroup because of the CPU exclusivity rule.
+# So we are going to skip the test if this is the case.
+#
[[ -d test ]] || mkdir test
-cd test
+echo 0-6 > test/cpuset.cpus
+echo root > test/cpuset.cpus.partition
+cat test/cpuset.cpus.partition | grep -q invalid
+RESULT=$?
+echo member > test/cpuset.cpus.partition
+echo "" > test/cpuset.cpus
+[[ $RESULT -eq 0 ]] && skip_test "Child cgroups are using cpuset!"
cleanup()
{
online_cpus
+ cd $CGROUP2
rmdir A1/A2/A3 A1/A2 A1 B1 > /dev/null 2>&1
- cd ..
rmdir test > /dev/null 2>&1
+ echo "" > cpuset.cpus.reserve
[[ -n "$SCHED_DEBUG" ]] &&
echo "$SCHED_DEBUG" > /sys/kernel/debug/sched/verbose
}
@@ -103,7 +120,7 @@ test_partition()
[[ $? -eq 0 ]] || exit 1
ACTUAL_VAL=$(cat cpuset.cpus.partition)
[[ $ACTUAL_VAL != $EXPECTED_VAL ]] && {
- echo "cpuset.cpus.partition: expect $EXPECTED_VAL, found $EXPECTED_VAL"
+ echo "cpuset.cpus.partition: expect $EXPECTED_VAL, found $ACTUAL_VAL"
echo "Test FAILED"
exit 1
}
@@ -114,7 +131,7 @@ test_effective_cpus()
EXPECTED_VAL=$1
ACTUAL_VAL=$(cat cpuset.cpus.effective)
[[ "$ACTUAL_VAL" != "$EXPECTED_VAL" ]] && {
- echo "cpuset.cpus.effective: expect '$EXPECTED_VAL', found '$EXPECTED_VAL'"
+ echo "cpuset.cpus.effective: expect '$EXPECTED_VAL', found '$ACTUAL_VAL'"
echo "Test FAILED"
exit 1
}
@@ -139,6 +156,7 @@ test_add_proc()
#
test_isolated()
{
+ cd $CGROUP2/test
echo 2-3 > cpuset.cpus
TYPE=$(cat cpuset.cpus.partition)
[[ $TYPE = member ]] || echo member > cpuset.cpus.partition
@@ -203,125 +221,152 @@ test_isolated()
#
# Cgroup test hierarchy
#
-# test -- A1 -- A2 -- A3
-# \- B1
+# root -- A1 -- A2 -- A3
+# +- B1
#
-# P<v> = set cpus.partition (0:member, 1:root, 2:isolated, -1:root invalid)
+# P<v> = set cpus.partition (0:member, 1:root, 2:isolated)
# C<l> = add cpu-list
# S<p> = use prefix in subtree_control
# T = put a task into cgroup
-# O<c>-<v> = Write <v> to CPU online file of <c>
+# O<c>=<v> = Write <v> to CPU online file of <c>
#
SETUP_A123_PARTITIONS="C1-3:P1:S+ C2-3:P1:S+ C3:P1"
TEST_MATRIX=(
- # test old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate
- # ---- ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------
- " S+ C0-1 . . C2-3 S+ C4-5 . . 0 A2:0-1"
- " S+ C0-1 . . C2-3 P1 . . . 0 "
- " S+ C0-1 . . C2-3 P1:S+ C0-1:P1 . . 0 "
- " S+ C0-1 . . C2-3 P1:S+ C1:P1 . . 0 "
- " S+ C0-1:S+ . . C2-3 . . . P1 0 "
- " S+ C0-1:P1 . . C2-3 S+ C1 . . 0 "
- " S+ C0-1:P1 . . C2-3 S+ C1:P1 . . 0 "
- " S+ C0-1:P1 . . C2-3 S+ C1:P1 . P1 0 "
- " S+ C0-1:P1 . . C2-3 C4-5 . . . 0 A1:4-5"
- " S+ C0-1:P1 . . C2-3 S+:C4-5 . . . 0 A1:4-5"
- " S+ C0-1 . . C2-3:P1 . . . C2 0 "
- " S+ C0-1 . . C2-3:P1 . . . C4-5 0 B1:4-5"
- " S+ C0-3:P1:S+ C2-3:P1 . . . . . . 0 A1:0-1,A2:2-3"
- " S+ C0-3:P1:S+ C2-3:P1 . . C1-3 . . . 0 A1:1,A2:2-3"
- " S+ C2-3:P1:S+ C3:P1 . . C3 . . . 0 A1:,A2:3 A1:P1,A2:P1"
- " S+ C2-3:P1:S+ C3:P1 . . C3 P0 . . 0 A1:3,A2:3 A1:P1,A2:P0"
- " S+ C2-3:P1:S+ C2:P1 . . C2-4 . . . 0 A1:3-4,A2:2"
- " S+ C2-3:P1:S+ C3:P1 . . C3 . . C0-2 0 A1:,B1:0-2 A1:P1,A2:P1"
- " S+ $SETUP_A123_PARTITIONS . C2-3 . . . 0 A1:,A2:2,A3:3 A1:P1,A2:P1,A3:P1"
+ # old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate PCPUS ISOLCPUS
+ # ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------ ----- --------
+ " C0-1 . . C2-3 S+ C4-5 . . 0 A2:0-1"
+ " C0-1 . . C2-3 P1 . . . 0 "
+ " C0-1 . . C2-3 P1:S+ C0-1:P1 . . 0 "
+ " C0-1 . . C2-3 P1:S+ C1:P1 . . 0 "
+ " C0-1:S+ . . C2-3 . . . P1 0 "
+ " C0-1:P1 . . C2-3 S+ C1 . . 0 "
+ " C0-1:P1 . . C2-3 S+ C1:P1 . . 0 "
+ " C0-1:P1 . . C2-3 S+ C1:P1 . P1 0 "
+ " C0-1:P1 . . C2-3 C4-5 . . . 0 A1:4-5"
+ " C0-1:P1 . . C2-3 S+:C4-5 . . . 0 A1:4-5"
+ " C0-1 . . C2-3:P1 . . . C2 0 "
+ " C0-1 . . C2-3:P1 . . . C4-5 0 B1:4-5"
+ "C0-3:P1:S+ C2-3:P1 . . . . . . 0 A1:0-1,A2:2-3"
+ "C0-3:P1:S+ C2-3:P1 . . C1-3 . . . 0 A1:1,A2:2-3"
+ "C2-3:P1:S+ C3:P1 . . C3 . . . 0 A1:,A2:3 A1:P1,A2:P1"
+ "C2-3:P1:S+ C3:P1 . . C3 P0 . . 0 A1:3,A2:3 A1:P1,A2:P0"
+ "C2-3:P1:S+ C2:P1 . . C2-4 . . . 0 A1:3-4,A2:2"
+ "C2-3:P1:S+ C3:P1 . . C3 . . C0-2 0 A1:,B1:0-2 A1:P1,A2:P1"
+ "$SETUP_A123_PARTITIONS . C2-3 . . . 0 A1:,A2:2,A3:3 A1:P1,A2:P1,A3:P1"
# CPU offlining cases:
- " S+ C0-1 . . C2-3 S+ C4-5 . O2-0 0 A1:0-1,B1:3"
- " S+ C0-3:P1:S+ C2-3:P1 . . O2-0 . . . 0 A1:0-1,A2:3"
- " S+ C0-3:P1:S+ C2-3:P1 . . O2-0 O2-1 . . 0 A1:0-1,A2:2-3"
- " S+ C0-3:P1:S+ C2-3:P1 . . O1-0 . . . 0 A1:0,A2:2-3"
- " S+ C0-3:P1:S+ C2-3:P1 . . O1-0 O1-1 . . 0 A1:0-1,A2:2-3"
- " S+ C2-3:P1:S+ C3:P1 . . O3-0 O3-1 . . 0 A1:2,A2:3 A1:P1,A2:P1"
- " S+ C2-3:P1:S+ C3:P2 . . O3-0 O3-1 . . 0 A1:2,A2:3 A1:P1,A2:P2"
- " S+ C2-3:P1:S+ C3:P1 . . O2-0 O2-1 . . 0 A1:2,A2:3 A1:P1,A2:P1"
- " S+ C2-3:P1:S+ C3:P2 . . O2-0 O2-1 . . 0 A1:2,A2:3 A1:P1,A2:P2"
- " S+ C2-3:P1:S+ C3:P1 . . O2-0 . . . 0 A1:,A2:3 A1:P1,A2:P1"
- " S+ C2-3:P1:S+ C3:P1 . . O3-0 . . . 0 A1:2,A2: A1:P1,A2:P1"
- " S+ C2-3:P1:S+ C3:P1 . . T:O2-0 . . . 0 A1:3,A2:3 A1:P1,A2:P-1"
- " S+ C2-3:P1:S+ C3:P1 . . . T:O3-0 . . 0 A1:2,A2:2 A1:P1,A2:P-1"
- " S+ $SETUP_A123_PARTITIONS . O1-0 . . . 0 A1:,A2:2,A3:3 A1:P1,A2:P1,A3:P1"
- " S+ $SETUP_A123_PARTITIONS . O2-0 . . . 0 A1:1,A2:,A3:3 A1:P1,A2:P1,A3:P1"
- " S+ $SETUP_A123_PARTITIONS . O3-0 . . . 0 A1:1,A2:2,A3: A1:P1,A2:P1,A3:P1"
- " S+ $SETUP_A123_PARTITIONS . T:O1-0 . . . 0 A1:2-3,A2:2-3,A3:3 A1:P1,A2:P-1,A3:P-1"
- " S+ $SETUP_A123_PARTITIONS . . T:O2-0 . . 0 A1:1,A2:3,A3:3 A1:P1,A2:P1,A3:P-1"
- " S+ $SETUP_A123_PARTITIONS . . . T:O3-0 . 0 A1:1,A2:2,A3:2 A1:P1,A2:P1,A3:P-1"
- " S+ $SETUP_A123_PARTITIONS . T:O1-0 O1-1 . . 0 A1:1,A2:2,A3:3 A1:P1,A2:P1,A3:P1"
- " S+ $SETUP_A123_PARTITIONS . . T:O2-0 O2-1 . 0 A1:1,A2:2,A3:3 A1:P1,A2:P1,A3:P1"
- " S+ $SETUP_A123_PARTITIONS . . . T:O3-0 O3-1 0 A1:1,A2:2,A3:3 A1:P1,A2:P1,A3:P1"
- " S+ $SETUP_A123_PARTITIONS . T:O1-0 O2-0 O1-1 . 0 A1:1,A2:,A3:3 A1:P1,A2:P1,A3:P1"
- " S+ $SETUP_A123_PARTITIONS . T:O1-0 O2-0 O2-1 . 0 A1:2-3,A2:2-3,A3:3 A1:P1,A2:P-1,A3:P-1"
-
- # test old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate
- # ---- ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------
+ " C0-1 . . C2-3 S+ C4-5 . O2=0 0 A1:0-1,B1:3"
+ "C0-3:P1:S+ C2-3:P1 . . O2=0 . . . 0 A1:0-1,A2:3"
+ "C0-3:P1:S+ C2-3:P1 . . O2=0 O2=1 . . 0 A1:0-1,A2:2-3"
+ "C0-3:P1:S+ C2-3:P1 . . O1=0 . . . 0 A1:0,A2:2-3"
+ "C0-3:P1:S+ C2-3:P1 . . O1=0 O1=1 . . 0 A1:0-1,A2:2-3"
+ "C2-3:P1:S+ C3:P1 . . O3=0 O3=1 . . 0 A1:2,A2:3 A1:P1,A2:P1"
+ "C2-3:P1:S+ C3:P2 . . O3=0 O3=1 . . 0 A1:2,A2:3 A1:P1,A2:P2"
+ "C2-3:P1:S+ C3:P1 . . O2=0 O2=1 . . 0 A1:2,A2:3 A1:P1,A2:P1"
+ "C2-3:P1:S+ C3:P2 . . O2=0 O2=1 . . 0 A1:2,A2:3 A1:P1,A2:P2"
+ "C2-3:P1:S+ C3:P1 . . O2=0 . . . 0 A1:,A2:3 A1:P1,A2:P1"
+ "C2-3:P1:S+ C3:P1 . . O3=0 . . . 0 A1:2,A2: A1:P1,A2:P1"
+ "C2-3:P1:S+ C3:P1 . . T:O2=0 . . . 0 A1:3,A2:3 A1:P1,A2:P-1"
+ "C2-3:P1:S+ C3:P1 . . . T:O3=0 . . 0 A1:2,A2:2 A1:P1,A2:P-1"
+ "$SETUP_A123_PARTITIONS . O1=0 . . . 0 A1:,A2:2,A3:3 A1:P1,A2:P1,A3:P1"
+ "$SETUP_A123_PARTITIONS . O2=0 . . . 0 A1:1,A2:,A3:3 A1:P1,A2:P1,A3:P1"
+ "$SETUP_A123_PARTITIONS . O3=0 . . . 0 A1:1,A2:2,A3: A1:P1,A2:P1,A3:P1"
+ "$SETUP_A123_PARTITIONS . T:O1=0 . . . 0 A1:2-3,A2:2-3,A3:3 A1:P1,A2:P-1,A3:P-1"
+ "$SETUP_A123_PARTITIONS . . T:O2=0 . . 0 A1:1,A2:3,A3:3 A1:P1,A2:P1,A3:P-1"
+ "$SETUP_A123_PARTITIONS . . . T:O3=0 . 0 A1:1,A2:2,A3:2 A1:P1,A2:P1,A3:P-1"
+ "$SETUP_A123_PARTITIONS . T:O1=0 O1=1 . . 0 A1:1,A2:2,A3:3 A1:P1,A2:P1,A3:P1"
+ "$SETUP_A123_PARTITIONS . . T:O2=0 O2=1 . 0 A1:1,A2:2,A3:3 A1:P1,A2:P1,A3:P1"
+ "$SETUP_A123_PARTITIONS . . . T:O3=0 O3=1 0 A1:1,A2:2,A3:3 A1:P1,A2:P1,A3:P1"
+ "$SETUP_A123_PARTITIONS . T:O1=0 O2=0 O1=1 . 0 A1:1,A2:,A3:3 A1:P1,A2:P1,A3:P1"
+ "$SETUP_A123_PARTITIONS . T:O1=0 O2=0 O2=1 . 0 A1:2-3,A2:2-3,A3:3 A1:P1,A2:P-1,A3:P-1"
+
+ # old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate PCPUS ISOLCPUS
+ # ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------ ----- --------
+ #
+ # Remote partition and cpuset.cpus.reserve tests
+ #
+ " C0-3:S+ C1-3:S+ C2-3 . R2-3 . . . 0 A1:0-1,A2:1,A3:1 . . 2-3"
+ " C0-3:S+ C1-3:S+ C2-3 . R2-3 P2 . . 0 A1:0-1,A2:1,A3:1 A1:P0,A2:P-2 . 2-3"
+ " C0-3:S+ C1-3:S+ C2-3 . R2-3 . P2 . 0 A1:0-1,A2:1,A3:2-3 A1:P0,A3:P2 . 2-3"
+ " C0-3:S+ C1-3:S+ C2-3 . R2-3 . P2:C3 . 0 A1:0-1,A2:1,A3:3 A1:P0,A3:P2 . 2-3"
+ " C0-3:S+ C1-3:S+ C2-3 C2-3 R2-3 . . P2 0 A1:0-1,A2:1,A3:1 A1:P0,A3:P0,B1:P-2 . 2-3"
+ " C0-3:S+ C1-3:S+ C2-3 C4-5 R4-5 . . P2 0 B1:4-5 B1:P2 . 4-5"
+ " C0-3:S+ C1-3:S+ C2-3 C4 R2-4 . P2 P2 0 A3:2-3,B1:4 A3:P2,B1:P2 . 2-4"
+ " C0-3:S+ C1-3:S+ C2-3 C4 R2-4 . P2:C1-3 P2 0 A3:1,B1:4 A3:P-2,B1:P2 . 2-4"
+ " C0-3:S+ C1-3:S+ C2-3 C4 R2-3 . P2 P2 0 A3:2-3,B1:4 A3:P2,B1:P2 . 2-4"
+ " C0-3:S+ C1-3:S+ C2-3 C4 R1-3 P2 P2 . 0 A2:1-3,A3:2-3 A2:P2,A3:P-2 . 1-3"
+ " C0-3:S+ C1-3:S+ C2-3 C4 R2-3 . P2 P2:C4-5 0 A3:2-3,B1:4-5 A3:P2,B1:P2 . 2-5"
+ " C0-3:S+ C1-3:S+ C2-3 C4 R2-4 . P2 P2:R-4 0 A3:2-3 A3:P2,B1:P-2 . 2-3"
+ " C0-3:S+ C1-3:S+ C2-3 C4 R2-4 . P2:R-2 P2 0 A3:2,B1:4 A3:P-2,B1:P2 . 3-4"
+
+ # Remote partition offline test
+ " C0-3:S+ C1-3:S+ C2-3 . R2-3 . P2:O2=0 . 0 A1:0-1,A2:1,A3:3 A1:P0,A3:P2 . 2-3"
+ " C0-3:S+ C1-3:S+ C2-3 . R2-3 . P2:O2=0 O2=1 0 A1:0-1,A2:1,A3:2-3 A1:P0,A3:P2 . 2-3"
+ " C0-3:S+ C1-3:S+ C2 . R2-3 . P2:O2=0 . 0 A1:0-1,A2:1,A3:1 A1:P0,A3:P-2 . 2-3"
+
+ # An invalidated remote partition cannot self-recover from hotplug
+ " C0-3:S+ C1-3:S+ C2 . R2-3 . P2:O2=0 O2=1 0 A1:0-1,A2:1,A3:1 A1:P0,A3:P-2 . 2-3"
+
+ # base old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate PCPUS ISOLCPUS
+ # ---- ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------ ----- --------
#
# Incorrect change to cpuset.cpus invalidates partition root
#
# Adding CPUs to partition root that are not in parent's
# cpuset.cpus is allowed, but those extra CPUs are ignored.
- " S+ C2-3:P1:S+ C3:P1 . . . C2-4 . . 0 A1:,A2:2-3 A1:P1,A2:P1"
+ "C2-3:P1:S+ C3:P1 . . . C2-4 . . 0 A1:,A2:2-3 A1:P1,A2:P1"
# Taking away all CPUs from parent or itself if there are tasks
# will make the partition invalid.
- " S+ C2-3:P1:S+ C3:P1 . . T C2-3 . . 0 A1:2-3,A2:2-3 A1:P1,A2:P-1"
- " S+ C3:P1:S+ C3 . . T P1 . . 0 A1:3,A2:3 A1:P1,A2:P-1"
- " S+ $SETUP_A123_PARTITIONS . T:C2-3 . . . 0 A1:2-3,A2:2-3,A3:3 A1:P1,A2:P-1,A3:P-1"
- " S+ $SETUP_A123_PARTITIONS . T:C2-3:C1-3 . . . 0 A1:1,A2:2,A3:3 A1:P1,A2:P1,A3:P1"
+ "C2-3:P1:S+ C3:P1 . . T C2-3 . . 0 A1:2-3,A2:2-3 A1:P1,A2:P-1"
+ " C3:P1:S+ C3 . . T P1 . . 0 A1:3,A2:3 A1:P1,A2:P-1"
+ "$SETUP_A123_PARTITIONS . T:C2-3 . . . 0 A1:2-3,A2:2-3,A3:3 A1:P1,A2:P-1,A3:P-1"
+ "$SETUP_A123_PARTITIONS . T:C2-3:C1-3 . . . 0 A1:1,A2:2,A3:3 A1:P1,A2:P1,A3:P1"
# Changing a partition root to member makes child partitions invalid
- " S+ C2-3:P1:S+ C3:P1 . . P0 . . . 0 A1:2-3,A2:3 A1:P0,A2:P-1"
- " S+ $SETUP_A123_PARTITIONS . C2-3 P0 . . 0 A1:2-3,A2:2-3,A3:3 A1:P1,A2:P0,A3:P-1"
+ "C2-3:P1:S+ C3:P1 . . P0 . . . 0 A1:2-3,A2:3 A1:P0,A2:P-1"
+ "$SETUP_A123_PARTITIONS . C2-3 P0 . . 0 A1:2-3,A2:2-3,A3:3 A1:P1,A2:P0,A3:P-1"
# cpuset.cpus can contains cpus not in parent's cpuset.cpus as long
# as they overlap.
- " S+ C2-3:P1:S+ . . . . C3-4:P1 . . 0 A1:2,A2:3 A1:P1,A2:P1"
+ "C2-3:P1:S+ . . . . C3-4:P1 . . 0 A1:2,A2:3 A1:P1,A2:P1"
# Deletion of CPUs distributed to child cgroup is allowed.
- " S+ C0-1:P1:S+ C1 . C2-3 C4-5 . . . 0 A1:4-5,A2:4-5"
+ "C0-1:P1:S+ C1 . C2-3 C4-5 . . . 0 A1:4-5,A2:4-5"
# To become a valid partition root, cpuset.cpus must overlap parent's
# cpuset.cpus.
- " S+ C0-1:P1 . . C2-3 S+ C4-5:P1 . . 0 A1:0-1,A2:0-1 A1:P1,A2:P-1"
+ " C0-1:P1 . . C2-3 S+ C4-5:P1 . . 0 A1:0-1,A2:0-1 A1:P1,A2:P-1"
# Enabling partition with child cpusets is allowed
- " S+ C0-1:S+ C1 . C2-3 P1 . . . 0 A1:0-1,A2:1 A1:P1"
+ " C0-1:S+ C1 . C2-3 P1 . . . 0 A1:0-1,A2:1 A1:P1"
# A partition root with non-partition root parent is invalid, but it
# can be made valid if its parent becomes a partition root too.
- " S+ C0-1:S+ C1 . C2-3 . P2 . . 0 A1:0-1,A2:1 A1:P0,A2:P-2"
- " S+ C0-1:S+ C1:P2 . C2-3 P1 . . . 0 A1:0,A2:1 A1:P1,A2:P2"
+ " C0-1:S+ C1 . C2-3 . P2 . . 0 A1:0-1,A2:1 A1:P0,A2:P-2"
+ " C0-1:S+ C1:P2 . C2-3 P1 . . . 0 A1:0,A2:1 A1:P1,A2:P2"
# A non-exclusive cpuset.cpus change will invalidate partition and its siblings
- " S+ C0-1:P1 . . C2-3 C0-2 . . . 0 A1:0-2,B1:2-3 A1:P-1,B1:P0"
- " S+ C0-1:P1 . . P1:C2-3 C0-2 . . . 0 A1:0-2,B1:2-3 A1:P-1,B1:P-1"
- " S+ C0-1 . . P1:C2-3 C0-2 . . . 0 A1:0-2,B1:2-3 A1:P0,B1:P-1"
+ " C0-1:P1 . . C2-3 C0-2 . . . 0 A1:0-2,B1:2-3 A1:P-1,B1:P0"
+ " C0-1:P1 . . P1:C2-3 C0-2 . . . 0 A1:0-2,B1:2-3 A1:P-1,B1:P-1"
+ " C0-1 . . P1:C2-3 C0-2 . . . 0 A1:0-2,B1:2-3 A1:P0,B1:P-1"
- # test old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate
- # ---- ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------
+ # base old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate PCPUS ISOLCPUS
+ # ---- ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------ ----- --------
# Failure cases:
# A task cannot be added to a partition with no cpu
- " S+ C2-3:P1:S+ C3:P1 . . O2-0:T . . . 1 A1:,A2:3 A1:P1,A2:P1"
+ "C2-3:P1:S+ C3:P1 . . O2=0:T . . . 1 A1:,A2:3 A1:P1,A2:P1"
)
#
# Write to the cpu online file
-# $1 - <c>-<v> where <c> = cpu number, <v> value to be written
+# $1 - <c>=<v> where <c> = cpu number, <v> value to be written
#
write_cpu_online()
{
- CPU=${1%-*}
- VAL=${1#*-}
+ CPU=${1%=*}
+ VAL=${1#*=}
CPUFILE=//sys/devices/system/cpu/cpu${CPU}/online
if [[ $VAL -eq 0 ]]
then
@@ -349,11 +394,12 @@ set_ctrl_state()
TMPMSG=/tmp/.msg_$$
CGRP=$1
STATE=$2
- SHOWERR=${3}${VERBOSE}
+ SHOWERR=${3}
CTRL=${CTRL:=$CONTROLLER}
HASERR=0
REDIRECT="2> $TMPMSG"
[[ -z "$STATE" || "$STATE" = '.' ]] && return 0
+ [[ $VERBOSE -gt 0 ]] && SHOWERR=1
rm -f $TMPMSG
for CMD in $(echo $STATE | sed -e "s/:/ /g")
@@ -368,6 +414,11 @@ set_ctrl_state()
PREFIX=${CMD#?}
COMM="echo ${PREFIX}${CTRL} > $SFILE"
eval $COMM $REDIRECT
+ elif [[ $S = R ]]
+ then
+ CPUS=${CMD#?}
+ COMM="echo $CPUS > $RESERVE_CPUS"
+ eval $COMM $REDIRECT
elif [[ $S = C ]]
then
CPUS=${CMD#?}
@@ -430,7 +481,7 @@ online_cpus()
[[ -n "OFFLINE_CPUS" ]] && {
for C in $OFFLINE_CPUS
do
- write_cpu_online ${C}-1
+ write_cpu_online ${C}=1
done
}
}
@@ -443,18 +494,25 @@ reset_cgroup_states()
echo 0 > $CGROUP2/cgroup.procs
online_cpus
rmdir A1/A2/A3 A1/A2 A1 B1 > /dev/null 2>&1
- set_ctrl_state . S-
+ pause 0.02
+ set_ctrl_state . R-
pause 0.01
}
dump_states()
{
- for DIR in A1 A1/A2 A1/A2/A3 B1
+ for DIR in . A1 A1/A2 A1/A2/A3 B1
do
ECPUS=$DIR/cpuset.cpus.effective
+ RCPUS=$DIR/cpuset.cpus.reserve
+ CPUS=$DIR/cpuset.cpus
PRS=$DIR/cpuset.cpus.partition
+ PCPUS=$DIR/.__DEBUG__.cpuset.cpus.subpartitions
+ [[ -e $CPUS ]] && echo "$CPUS: $(cat $CPUS)"
+ [[ -e $RCPUS ]] && echo "$RCPUS: $(cat $RCPUS)"
[[ -e $ECPUS ]] && echo "$ECPUS: $(cat $ECPUS)"
[[ -e $PRS ]] && echo "$PRS: $(cat $PRS)"
+ [[ -e $PCPUS ]] && echo "$PCPUS: $(cat $PCPUS)"
done
}
@@ -478,6 +536,26 @@ check_effective_cpus()
done
}
+#
+# Check subparts cpus
+# $1 - check string, format: <cgroup>:<cpu-list>[,<cgroup>:<cpu-list>]*
+#
+check_subparts_cpus()
+{
+ CHK_STR=$1
+ for CHK in $(echo $CHK_STR | sed -e "s/,/ /g")
+ do
+ set -- $(echo $CHK | sed -e "s/:/ /g")
+ CGRP=$1
+ CPUS=$2
+ [[ $CGRP = A2 ]] && CGRP=A1/A2
+ [[ $CGRP = A3 ]] && CGRP=A1/A2/A3
+ FILE=$CGRP/.__DEBUG__.cpuset.cpus.subpartitions
+ [[ -e $FILE ]] || return 0 # Skip test
+ [[ $CPUS = $(cat $FILE) ]] || return 1
+ done
+}
+
#
# Check cgroup states
# $1 - check string, format: <cgroup>:<state>[,<cgroup>:<state>]*
@@ -524,6 +602,67 @@ check_cgroup_states()
return 0
}
+#
+# Get isolated (including offline) CPUs by looking at
+# /sys/kernel/debug/sched/domains and compare that with the expected value.
+#
+# $1 - expected isolated cpu list
+#
+check_isolcpus()
+{
+ EXPECT_VAL=$1
+ ISOLCPUS=
+ LASTISOLCPU=
+ SCHED_DOMAINS=/sys/kernel/debug/sched/domains
+ [[ -d $SCHED_DOMAINS ]] || {
+ # Check reserve cpus instead
+ ISOLCPUS=$(cat $RESERVE_CPUS)
+ [[ $EXPECT_VAL = $ISOLCPUS ]]
+ return $?
+ }
+
+ for ((CPU=0; CPU < $NR_CPUS; CPU++))
+ do
+ [[ -n "$(ls ${SCHED_DOMAINS}/cpu$CPU)" ]] && continue
+
+ if [[ -z "$LASTISOLCPU" ]]
+ then
+ ISOLCPUS=$CPU
+ LASTISOLCPU=$CPU
+ elif [[ "$LASTISOLCPU" -eq $((CPU - 1)) ]]
+ then
+ echo $ISOLCPUS | grep -q "\<$LASTISOLCPU\$"
+ if [[ $? -eq 0 ]]
+ then
+ ISOLCPUS=${ISOLCPUS}-
+ fi
+ LASTISOLCPU=$CPU
+ else
+ if [[ $ISOLCPUS = *- ]]
+ then
+ ISOLCPUS=${ISOLCPUS}$LASTISOLCPU
+ fi
+ ISOLCPUS=${ISOLCPUS},$CPU
+ LASTISOLCPU=$CPU
+ fi
+ done
+ [[ "$ISOLCPUS" = *- ]] && ISOLCPUS=${ISOLCPUS}$LASTISOLCPU
+ [[ $EXPECT_VAL = $ISOLCPUS ]]
+}
+
+test_fail()
+{
+ TESTNUM=$1
+ TESTTYPE=$2
+ ADDINFO=$3
+ echo "Test $TEST[$TESTNUM] failed $TESTTYPE check!"
+ [[ -n "$ADDINFO" ]] && echo "*** $ADDINFO ***"
+ eval echo \"\${$TEST[$I]}\"
+ echo
+ dump_states
+ exit 1
+}
+
#
# Run cpuset state transition test
# $1 - test matrix name
@@ -536,88 +675,81 @@ run_state_test()
{
TEST=$1
CONTROLLER=cpuset
- CPULIST=0-6
I=0
eval CNT="\${#$TEST[@]}"
reset_cgroup_states
- echo $CPULIST > cpuset.cpus
- echo root > cpuset.cpus.partition
console_msg "Running state transition test ..."
while [[ $I -lt $CNT ]]
do
echo "Running test $I ..." > /dev/console
+ [[ $VERBOSE -gt 1 ]] && {
+ echo ""
+ eval echo \"\${$TEST[$I]}\"
+ }
eval set -- "\${$TEST[$I]}"
- ROOT=$1
- OLD_A1=$2
- OLD_A2=$3
- OLD_A3=$4
- OLD_B1=$5
- NEW_A1=$6
- NEW_A2=$7
- NEW_A3=$8
- NEW_B1=$9
- RESULT=${10}
- ECPUS=${11}
- STATES=${12}
-
- set_ctrl_state_noerr . $ROOT
+ OLD_A1=$1
+ OLD_A2=$2
+ OLD_A3=$3
+ OLD_B1=$4
+ NEW_A1=$5
+ NEW_A2=$6
+ NEW_A3=$7
+ NEW_B1=$8
+ RESULT=$9
+ ECPUS=${10}
+ STATES=${11}
+ PCPUS=${12}
+ ICPUS=${13}
+
+ set_ctrl_state_noerr B1 $OLD_B1
set_ctrl_state_noerr A1 $OLD_A1
set_ctrl_state_noerr A1/A2 $OLD_A2
set_ctrl_state_noerr A1/A2/A3 $OLD_A3
- set_ctrl_state_noerr B1 $OLD_B1
RETVAL=0
set_ctrl_state A1 $NEW_A1; ((RETVAL += $?))
set_ctrl_state A1/A2 $NEW_A2; ((RETVAL += $?))
set_ctrl_state A1/A2/A3 $NEW_A3; ((RETVAL += $?))
set_ctrl_state B1 $NEW_B1; ((RETVAL += $?))
- [[ $RETVAL -ne $RESULT ]] && {
- echo "Test $TEST[$I] failed result check!"
- eval echo \"\${$TEST[$I]}\"
- dump_states
- exit 1
- }
+ [[ $RETVAL -ne $RESULT ]] && test_fail $I result
[[ -n "$ECPUS" && "$ECPUS" != . ]] && {
check_effective_cpus $ECPUS
- [[ $? -ne 0 ]] && {
- echo "Test $TEST[$I] failed effective CPU check!"
- eval echo \"\${$TEST[$I]}\"
- echo
- dump_states
- exit 1
- }
+ [[ $? -ne 0 ]] && test_fail $I "effective CPU"
}
- [[ -n "$STATES" ]] && {
+ [[ -n "$STATES" && "$STATES" != . ]] && {
check_cgroup_states $STATES
- [[ $? -ne 0 ]] && {
- echo "FAILED: Test $TEST[$I] failed states check!"
- eval echo \"\${$TEST[$I]}\"
- echo
- dump_states
- exit 1
- }
+ [[ $? -ne 0 ]] && test_fail $I states
+ }
+
+ [[ -n "$PCPUS" && "$PCPUS" != . ]] && {
+ check_subparts_cpus $PCPUS
+ [[ $? -ne 0 ]] && test_fail $I "subpartitions CPU"
}
+ # Compare the expected isolated CPUs with the actual ones,
+ # if available
+ [[ -n "$ICPUS" ]] && {
+ check_isolcpus $ICPUS
+ [[ $? -ne 0 ]] && test_fail $I "isolated CPU" \
+ "Expect $ICPUS, get $ISOLCPUS instead"
+ }
reset_cgroup_states
#
# Check to see if effective cpu list changes
#
- pause 0.05
NEWLIST=$(cat cpuset.cpus.effective)
[[ $NEWLIST != $CPULIST ]] && {
echo "Effective cpus changed to $NEWLIST after test $I!"
exit 1
}
- [[ -n "$VERBOSE" ]] && echo "Test $I done."
+ [[ $VERBOSE -gt 0 ]] && echo "Test $I done."
((I++))
done
echo "All $I tests of $TEST PASSED."
-
- echo member > cpuset.cpus.partition
}
#
@@ -642,6 +774,7 @@ test_inotify()
{
ERR=0
PRS=/tmp/.prs_$$
+ cd $CGROUP2/test
[[ -f $WAIT_INOTIFY ]] || {
echo "wait_inotify not found, inotify test SKIPPED."
return
@@ -655,7 +788,7 @@ test_inotify()
rm -f $PRS
wait_inotify $PWD/cpuset.cpus.partition $PRS &
pause 0.01
- set_ctrl_state . "O1-0"
+ set_ctrl_state . "O1=0"
pause 0.01
check_cgroup_states ".:P-1"
if [[ $? -ne 0 ]]
@@ -689,5 +822,3 @@ run_state_test TEST_MATRIX
test_isolated
test_inotify
echo "All tests PASSED."
-cd ..
-rmdir test
--
2.31.1
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