selftests/cgroup/test_cpuset_prs.sh

25 SUBPARTS_CPUS=$CGROUP2/.__DEBUG__.cpuset.cpus.subpartitions
26 CPULIST=$(cat $CGROUP2/cpuset.cpus.effective)
29 [[ $NR_CPUS -lt 8 ]] && skip_test "Test needs at least 8 cpus available!"
71 echo 0-6 > test/cpuset.cpus
72 echo root > test/cpuset.cpus.partition
73 cat test/cpuset.cpus.partition | grep -q invalid
75 echo member > test/cpuset.cpus.partition
76 echo "" > test/cpuset.cpus
114 	echo $EXPECTED_VAL > cpuset.cpus.partition
116 	ACTUAL_VAL=$(cat cpuset.cpus.partition)
118 		echo "cpuset.cpus.partition: expect $EXPECTED_VAL, found $ACTUAL_VAL"
127 	ACTUAL_VAL=$(cat cpuset.cpus.effective)
129 		echo "cpuset.cpus.effective: expect '$EXPECTED_VAL', found '$ACTUAL_VAL'"
157 #  P<v> = set cpus.partition (0:member, 1:root, 2:isolated)
158 #  C<l> = add cpu-list to cpuset.cpus
159 #  X<l> = add cpu-list to cpuset.cpus.exclusive
217 	# Remote partition and cpuset.cpus.exclusive tests
256 	# cpus.exclusive.effective clearing test
308 	# Incorrect change to cpuset.cpus invalidates partition root
310 	# Adding CPUs to partition root that are not in parent's
311 	# cpuset.cpus is allowed, but those extra CPUs are ignored.
314 	# Taking away all CPUs from parent or itself if there are tasks
325 	# cpuset.cpus can contains cpus not in parent's cpuset.cpus as long
329 	# Deletion of CPUs distributed to child cgroup is allowed.
332 	# To become a valid partition root, cpuset.cpus must overlap parent's
333 	# cpuset.cpus.
344 	# A non-exclusive cpuset.cpus change will invalidate partition and its siblings
356 	# Changes to cpuset.cpus.exclusive that violate exclusivity rule is rejected
407 		PFILE=$CGRP/cpuset.cpus.partition
408 		CFILE=$CGRP/cpuset.cpus
409 		XFILE=$CGRP/cpuset.cpus.exclusive
418 			CPUS=${CMD#?}
419 			COMM="echo $CPUS > $XFILE"
423 			CPUS=${CMD#?}
424 			COMM="echo $CPUS > $CFILE"
489 # Return 1 if the list of effective cpus isn't the same as the initial list.
505 		CPUS=$DIR/cpuset.cpus
506 		ECPUS=$DIR/cpuset.cpus.effective
507 		XCPUS=$DIR/cpuset.cpus.exclusive
508 		XECPUS=$DIR/cpuset.cpus.exclusive.effective
509 		PRS=$DIR/cpuset.cpus.partition
510 		PCPUS=$DIR/.__DEBUG__.cpuset.cpus.subpartitions
511 		ISCPUS=$DIR/cpuset.cpus.isolated
512 		[[ -e $CPUS   ]] && echo "$CPUS: $(cat $CPUS)"
523 # Check effective cpus
533 		CPUS=$2
537 			FILE=cpuset.cpus.exclusive.effective
539 			FILE=cpuset.cpus.effective
544 		[[ $CPUS = $(cat $CGRP/$FILE) ]] || return 1
566 			P*) FILE=$CGRP/cpuset.cpus.partition
595 # Get isolated (including offline) CPUs by looking at
596 # /sys/kernel/debug/sched/domains and cpuset.cpus.isolated control file,
599 # Note that isolated CPUs from the sched/domains context include offline
600 # CPUs as well as CPUs in non-isolated 1-CPU partition. Those CPUs may
601 # not be included in the cpuset.cpus.isolated control file which contains
602 # only CPUs in isolated partitions.
606 # <isolcpus2> - cpuset.cpus.isolated value = <isolcpus1> if not defined
614 	ISCPUS=${CGROUP2}/cpuset.cpus.isolated
643 	# Use the sched domain in debugfs to check isolated CPUs, if available
690 # Check to see if there are unexpected isolated CPUs left
704 	echo "Unexpected isolated CPUs: $ISOLCPUS"
770 		# Compare the expected isolated CPUs with the actual ones,
781 		NEWLIST=$(cat cpuset.cpus.effective)
788 			NEWLIST=$(cat cpuset.cpus.effective)
791 			echo "Effective cpus changed to $NEWLIST after test $I!"
807 	echo 2-3 > cpuset.cpus
808 	TYPE=$(cat cpuset.cpus.partition)
809 	[[ $TYPE = member ]] || echo member > cpuset.cpus.partition
832 	console_msg "Distribute all cpus to child partition"
838 	echo 2-3 > cpuset.cpus
852 	echo 2 > cpuset.cpus
856 	echo 2-3 > cpuset.cpus
896 	echo 1 > cpuset.cpus
898 	echo root > cpuset.cpus.partition
901 	wait_inotify $PWD/cpuset.cpus.partition $PRS &
922 	echo member > cpuset.cpus.partition