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selftest/cgroup: Add a remote partition transition test to test_cpuset_prs.sh
JIRA: https://issues.redhat.com/browse/RHEL-83455 commit e8a457b Author: Waiman Long <longman@redhat.com> Date: Sun, 30 Mar 2025 17:52:48 -0400 selftest/cgroup: Add a remote partition transition test to test_cpuset_prs.sh The current cgroup directory layout for running the partition state transition tests is mainly suitable for testing local partitions as well as with a mix of local and remote partitions. It is not that suitable for doing extensive remote partition and nested remote/local partition testing. Add a new set of remote partition tests REMOTE_TEST_MATRIX with another cgroup directory structure more tailored for remote partition testing to provide better code coverage. Also add a few new test cases as well as adjusting existig ones for the original TEST_MATRIX. Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Waiman Long <longman@redhat.com>
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‎tools/testing/selftests/cgroup/test_cpuset_prs.sh‎

Lines changed: 143 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -112,6 +112,8 @@ cleanup()
112112
online_cpus
113113
cd $CGROUP2
114114
rmdir A1/A2/A3 A1/A2 A1 B1 test/A1 test/B1 test > /dev/null 2>&1
115+
rmdir rtest/p1/c11 rtest/p1/c12 rtest/p2/c21 \
116+
rtest/p2/c22 rtest/p1 rtest/p2 rtest > /dev/null 2>&1
115117
[[ -n "$SCHED_DEBUG" ]] &&
116118
echo "$SCHED_DEBUG" > /sys/kernel/debug/sched/verbose
117119
}
@@ -223,9 +225,9 @@ TEST_MATRIX=(
223225
" C0-1:P1 . . C2-3 S+:C4-5 . . . 0 A1:4-5"
224226
" C0-1 . . C2-3:P1 . . . C2 0 "
225227
" C0-1 . . C2-3:P1 . . . C4-5 0 B1:4-5"
226-
"C0-3:P1:S+ C2-3:P1 . . . . . . 0 A1:0-1|A2:2-3"
227-
"C0-3:P1:S+ C2-3:P1 . . C1-3 . . . 0 A1:1|A2:2-3"
228-
"C2-3:P1:S+ C3:P1 . . C3 . . . 0 A1:|A2:3 A1:P1|A2:P1"
228+
"C0-3:P1:S+ C2-3:P1 . . . . . . 0 A1:0-1|A2:2-3|XA2:2-3"
229+
"C0-3:P1:S+ C2-3:P1 . . C1-3 . . . 0 A1:1|A2:2-3|XA2:2-3"
230+
"C2-3:P1:S+ C3:P1 . . C3 . . . 0 A1:|A2:3|XA2:3 A1:P1|A2:P1"
229231
"C2-3:P1:S+ C3:P1 . . C3 P0 . . 0 A1:3|A2:3 A1:P1|A2:P0"
230232
"C2-3:P1:S+ C2:P1 . . C2-4 . . . 0 A1:3-4|A2:2"
231233
"C2-3:P1:S+ C3:P1 . . C3 . . C0-2 0 A1:|B1:0-2 A1:P1|A2:P1"
@@ -291,7 +293,7 @@ TEST_MATRIX=(
291293
A1:P0|A2:P2|A3:P1 2"
292294
" C0-4:X2-4:S+ C1-4:X2-4:S+:P2 C2-4:X4:P1 \
293295
. . X5 . . 0 A1:0-4|A2:1-4|A3:2-4 \
294-
A1:P0|A2:P-2|A3:P-1"
296+
A1:P0|A2:P-2|A3:P-1 ."
295297
" C0-4:X2-4:S+ C1-4:X2-4:S+:P2 C2-4:X4:P1 \
296298
. . . X1 . 0 A1:0-1|A2:2-4|A3:2-4 \
297299
A1:P0|A2:P2|A3:P-1 2-4"
@@ -303,13 +305,13 @@ TEST_MATRIX=(
303305
" C0-3:S+ C1-3:S+ C3 . X2-3 X2-3 T:P2:O3=0 . 0 A1:0-2|A2:1-2|A3:1-2 A1:P0|A3:P-2 3|"
304306
305307
# An invalidated remote partition cannot self-recover from hotplug
306-
" C0-3:S+ C1-3:S+ C2 . X2-3 X2-3 T:P2:O2=0 O2=1 0 A1:0-3|A2:1-3|A3:2 A1:P0|A3:P-2"
308+
" C0-3:S+ C1-3:S+ C2 . X2-3 X2-3 T:P2:O2=0 O2=1 0 A1:0-3|A2:1-3|A3:2 A1:P0|A3:P-2 ."
307309
308310
# cpus.exclusive.effective clearing test
309311
" C0-3:S+ C1-3:S+ C2 . X2-3:X . . . 0 A1:0-3|A2:1-3|A3:2|XA1:"
310312
311313
# Invalid to valid remote partition transition test
312-
" C0-3:S+ C1-3 . . . X3:P2 . . 0 A1:0-3|A2:1-3|XA2: A2:P-2"
314+
" C0-3:S+ C1-3 . . . X3:P2 . . 0 A1:0-3|A2:1-3|XA2: A2:P-2 ."
313315
" C0-3:S+ C1-3:X3:P2
314316
. . X2-3 P2 . . 0 A1:0-2|A2:3|XA2:3 A2:P2 3"
315317
@@ -318,7 +320,6 @@ TEST_MATRIX=(
318320
" C1-3:S+:P2 X4:P2 . . . X3:P2 . . 0 A1:1-2|XA1:1-3|A2:3:XA2:3 A1:P2|A2:P2 1-3"
319321
" C0-3:P2 . . C4-6 C0-4 . . . 0 A1:0-4|B1:4-6 A1:P-2|B1:P0"
320322
" C0-3:P2 . . C4-6 C0-4:C0-3 . . . 0 A1:0-3|B1:4-6 A1:P2|B1:P0 0-3"
321-
" C0-3:P2 . . C3-5:C4-5 . . . . 0 A1:0-3|B1:4-5 A1:P2|B1:P0 0-3"
322323
323324
# Local partition invalidation tests
324325
" C0-3:X1-3:S+:P2 C1-3:X2-3:S+:P2 C2-3:X3:P2 \
@@ -334,10 +335,10 @@ TEST_MATRIX=(
334335
# cpus_allowed/exclusive_cpus update tests
335336
" C0-3:X2-3:S+ C1-3:X2-3:S+ C2-3:X2-3 \
336337
. X:C4 . P2 . 0 A1:4|A2:4|XA2:|XA3:|A3:4 \
337-
A1:P0|A3:P-2"
338+
A1:P0|A3:P-2 ."
338339
" C0-3:X2-3:S+ C1-3:X2-3:S+ C2-3:X2-3 \
339340
. X1 . P2 . 0 A1:0-3|A2:1-3|XA1:1|XA2:|XA3:|A3:2-3 \
340-
A1:P0|A3:P-2"
341+
A1:P0|A3:P-2 ."
341342
" C0-3:X2-3:S+ C1-3:X2-3:S+ C2-3:X2-3 \
342343
. . X3 P2 . 0 A1:0-2|A2:1-2|XA2:3|XA3:3|A3:3 \
343344
A1:P0|A3:P2 3"
@@ -385,7 +386,7 @@ TEST_MATRIX=(
385386
# A partition root with non-partition root parent is invalid| but it
386387
# can be made valid if its parent becomes a partition root too.
387388
" C0-1:S+ C1 . C2-3 . P2 . . 0 A1:0-1|A2:1 A1:P0|A2:P-2"
388-
" C0-1:S+ C1:P2 . C2-3 P1 . . . 0 A1:0|A2:1 A1:P1|A2:P2"
389+
" C0-1:S+ C1:P2 . C2-3 P1 . . . 0 A1:0|A2:1 A1:P1|A2:P2 0-1|1"
389390
390391
# A non-exclusive cpuset.cpus change will invalidate partition and its siblings
391392
" C0-1:P1 . . C2-3 C0-2 . . . 0 A1:0-2|B1:2-3 A1:P-1|B1:P0"
@@ -405,6 +406,17 @@ TEST_MATRIX=(
405406
# affect cpuset.cpus.exclusive.effective.
406407
" C1-4:X3:S+ C1:X3 . . . C . . 0 A2:1-4|XA2:3"
407408
409+
# cpuset.cpus can contain CPUs that overlap a sibling cpuset with cpus.exclusive
410+
# but creating a local partition out of it is not allowed. Similarly and change
411+
# in cpuset.cpus of a local partition that overlaps sibling exclusive CPUs will
412+
# invalidate it.
413+
" CX1-4:S+ CX2-4:P2 . C5-6 . . . P1 0 A1:1|A2:2-4|B1:5-6|XB1:5-6 \
414+
A1:P0|A2:P2:B1:P1 2-4"
415+
" CX1-4:S+ CX2-4:P2 . C3-6 . . . P1 0 A1:1|A2:2-4|B1:5-6 \
416+
A1:P0|A2:P2:B1:P-1 2-4"
417+
" CX1-4:S+ CX2-4:P2 . C5-6 . . . P1:C3-6 0 A1:1|A2:2-4|B1:5-6 \
418+
A1:P0|A2:P2:B1:P-1 2-4"
419+
408420
# old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate ISOLCPUS
409421
# ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------ --------
410422
# Failure cases:
@@ -419,6 +431,54 @@ TEST_MATRIX=(
419431
" C0-3 . . C4-5 X3-5 . . . 1 A1:0-3|B1:4-5"
420432
)
421433
434+
#
435+
# Cpuset controller remote partition test matrix.
436+
#
437+
# Cgroup test hierarchy
438+
#
439+
# root
440+
# |
441+
# rtest (cpuset.cpus.exclusive=1-7)
442+
# |
443+
# +------+------+
444+
# | |
445+
# p1 p2
446+
# +--+--+ +--+--+
447+
# | | | |
448+
# c11 c12 c21 c22
449+
#
450+
# REMOTE_TEST_MATRIX uses the same notational convention as TEST_MATRIX.
451+
# Only CPUs 1-7 should be used.
452+
#
453+
REMOTE_TEST_MATRIX=(
454+
# old-p1 old-p2 old-c11 old-c12 old-c21 old-c22
455+
# new-p1 new-p2 new-c11 new-c12 new-c21 new-c22 ECPUs Pstate ISOLCPUS
456+
# ------ ------ ------- ------- ------- ------- ----- ------ --------
457+
" X1-3:S+ X4-6:S+ X1-2 X3 X4-5 X6 \
458+
. . P2 P2 P2 P2 c11:1-2|c12:3|c21:4-5|c22:6 \
459+
c11:P2|c12:P2|c21:P2|c22:P2 1-6"
460+
" CX1-4:S+ . X1-2:P2 C3 . . \
461+
. . . C3-4 . . p1:3-4|c11:1-2|c12:3-4 \
462+
p1:P0|c11:P2|c12:P0 1-2"
463+
" CX1-4:S+ . X1-2:P2 . . . \
464+
X2-4 . . . . . p1:1,3-4|c11:2 \
465+
p1:P0|c11:P2 2"
466+
" CX1-5:S+ . X1-2:P2 X3-5:P1 . . \
467+
X2-4 . . . . . p1:1,5|c11:2|c12:3-4 \
468+
p1:P0|c11:P2|c12:P1 2"
469+
" CX1-4:S+ . X1-2:P2 X3-4:P1 . . \
470+
. . X2 . . . p1:1|c11:2|c12:3-4 \
471+
p1:P0|c11:P2|c12:P1 2"
472+
# p1 as member, will get its effective CPUs from its parent rtest
473+
" CX1-4:S+ . X1-2:P2 X3-4:P1 . . \
474+
. . X1 CX2-4 . . p1:5-7|c11:1|c12:2-4 \
475+
p1:P0|c11:P2|c12:P1 1"
476+
" CX1-4:S+ X5-6:P1:S+ . . . . \
477+
. . X1-2:P2 X4-5:P1 . X1-7:P2 p1:3|c11:1-2|c12:4:c22:5-6 \
478+
p1:P0|p2:P1|c11:P2|c12:P1|c22:P2 \
479+
1-2,4-6|1-2,5-6"
480+
)
481+
422482
#
423483
# Write to the cpu online file
424484
# $1 - <c>=<v> where <c> = cpu number, <v> value to be written
@@ -902,10 +962,11 @@ run_state_test()
902962
STATES=${11}
903963
ICPUS=${12}
904964

905-
set_ctrl_state_noerr B1 $OLD_B1
906965
set_ctrl_state_noerr A1 $OLD_A1
907966
set_ctrl_state_noerr A1/A2 $OLD_A2
908967
set_ctrl_state_noerr A1/A2/A3 $OLD_A3
968+
set_ctrl_state_noerr B1 $OLD_B1
969+
909970
RETVAL=0
910971
set_ctrl_state A1 $NEW_A1; ((RETVAL += $?))
911972
set_ctrl_state A1/A2 $NEW_A2; ((RETVAL += $?))
@@ -920,6 +981,76 @@ run_state_test()
920981
echo "All $I tests of $TEST PASSED."
921982
}
922983

984+
#
985+
# Run cpuset remote partition state transition test
986+
# $1 - test matrix name
987+
#
988+
run_remote_state_test()
989+
{
990+
TEST=$1
991+
CONTROLLER=cpuset
992+
[[ -d rtest ]] || mkdir rtest
993+
cd rtest
994+
echo +cpuset > cgroup.subtree_control
995+
echo "1-7" > cpuset.cpus
996+
echo "1-7" > cpuset.cpus.exclusive
997+
CGROUP_LIST=".. . p1 p2 p1/c11 p1/c12 p2/c21 p2/c22"
998+
RESET_LIST="p1/c11 p1/c12 p2/c21 p2/c22 p1 p2"
999+
I=0
1000+
eval CNT="\${#$TEST[@]}"
1001+
1002+
reset_cgroup_states
1003+
console_msg "Running remote partition state transition test ..."
1004+
1005+
while [[ $I -lt $CNT ]]
1006+
do
1007+
echo "Running test $I ..." > $CONSOLE
1008+
[[ $VERBOSE -gt 1 ]] && {
1009+
echo ""
1010+
eval echo \${$TEST[$I]}
1011+
}
1012+
eval set -- "\${$TEST[$I]}"
1013+
OLD_p1=$1
1014+
OLD_p2=$2
1015+
OLD_c11=$3
1016+
OLD_c12=$4
1017+
OLD_c21=$5
1018+
OLD_c22=$6
1019+
NEW_p1=$7
1020+
NEW_p2=$8
1021+
NEW_c11=$9
1022+
NEW_c12=${10}
1023+
NEW_c21=${11}
1024+
NEW_c22=${12}
1025+
ECPUS=${13}
1026+
STATES=${14}
1027+
ICPUS=${15}
1028+
1029+
set_ctrl_state_noerr p1 $OLD_p1
1030+
set_ctrl_state_noerr p2 $OLD_p2
1031+
set_ctrl_state_noerr p1/c11 $OLD_c11
1032+
set_ctrl_state_noerr p1/c12 $OLD_c12
1033+
set_ctrl_state_noerr p2/c21 $OLD_c21
1034+
set_ctrl_state_noerr p2/c22 $OLD_c22
1035+
1036+
RETVAL=0
1037+
set_ctrl_state p1 $NEW_p1 ; ((RETVAL += $?))
1038+
set_ctrl_state p2 $NEW_p2 ; ((RETVAL += $?))
1039+
set_ctrl_state p1/c11 $NEW_c11; ((RETVAL += $?))
1040+
set_ctrl_state p1/c12 $NEW_c12; ((RETVAL += $?))
1041+
set_ctrl_state p2/c21 $NEW_c21; ((RETVAL += $?))
1042+
set_ctrl_state p2/c22 $NEW_c22; ((RETVAL += $?))
1043+
1044+
[[ $RETVAL -ne 0 ]] && test_fail $I result
1045+
1046+
check_test_results $I "$ECPUS" "$STATES" "$ICPUS"
1047+
((I++))
1048+
done
1049+
cd ..
1050+
rmdir rtest
1051+
echo "All $I tests of $TEST PASSED."
1052+
}
1053+
9231054
#
9241055
# Testing the new "isolated" partition root type
9251056
#
@@ -1056,6 +1187,7 @@ test_inotify()
10561187

10571188
trap cleanup 0 2 3 6
10581189
run_state_test TEST_MATRIX
1190+
run_remote_state_test REMOTE_TEST_MATRIX
10591191
test_isolated
10601192
test_inotify
10611193
echo "All tests PASSED."

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