summaryrefslogtreecommitdiff
path: root/tools/testing/selftests/vm/run_vmtests.sh
blob: 8984e0bb58c7a0a9e0aba3c5cb1e47e9164d00af (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Please run as root

# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4

exitcode=0

usage() {
	cat <<EOF
usage: ${BASH_SOURCE[0]:-$0} [ -h | -t "<categories>"]
  -t: specify specific categories to tests to run
  -h: display this message

The default behavior is to run all tests.

Alternatively, specific groups tests can be run by passing a string
to the -t argument containing one or more of the following categories
separated by spaces:
- mmap
	tests for mmap(2)
- gup_test
	tests for gup using gup_test interface
- userfaultfd
	tests for  userfaultfd(2)
- compaction
	a test for the patch "Allow compaction of unevictable pages"
- mlock
	tests for mlock(2)
- mremap
	tests for mremap(2)
- hugevm
	tests for very large virtual address space
- vmalloc
	vmalloc smoke tests
- hmm
	hmm smoke tests
- madv_populate
	test memadvise(2) MADV_POPULATE_{READ,WRITE} options
- memfd_secret
	test memfd_secret(2)
- process_mrelease
	test process_mrelease(2)
- ksm
	ksm tests that do not require >=2 NUMA nodes
- ksm_numa
	ksm tests that require >=2 NUMA nodes
- pkey
	memory protection key tests
- soft_dirty
	test soft dirty page bit semantics
- cow
	test copy-on-write semantics
example: ./run_vmtests.sh -t "hmm mmap ksm"
EOF
	exit 0
}


while getopts "ht:" OPT; do
	case ${OPT} in
		"h") usage ;;
		"t") VM_SELFTEST_ITEMS=${OPTARG} ;;
	esac
done
shift $((OPTIND -1))

# default behavior: run all tests
VM_SELFTEST_ITEMS=${VM_SELFTEST_ITEMS:-default}

test_selected() {
	if [ "$VM_SELFTEST_ITEMS" == "default" ]; then
		# If no VM_SELFTEST_ITEMS are specified, run all tests
		return 0
	fi
	# If test selected argument is one of the test items
	if [[ " ${VM_SELFTEST_ITEMS[*]} " =~ " ${1} " ]]; then
	        return 0
	else
	        return 1
	fi
}

# get huge pagesize and freepages from /proc/meminfo
while read -r name size unit; do
	if [ "$name" = "HugePages_Free:" ]; then
		freepgs="$size"
	fi
	if [ "$name" = "Hugepagesize:" ]; then
		hpgsize_KB="$size"
	fi
done < /proc/meminfo

# Simple hugetlbfs tests have a hardcoded minimum requirement of
# huge pages totaling 256MB (262144KB) in size.  The userfaultfd
# hugetlb test requires a minimum of 2 * nr_cpus huge pages.  Take
# both of these requirements into account and attempt to increase
# number of huge pages available.
nr_cpus=$(nproc)
hpgsize_MB=$((hpgsize_KB / 1024))
half_ufd_size_MB=$((((nr_cpus * hpgsize_MB + 127) / 128) * 128))
needmem_KB=$((half_ufd_size_MB * 2 * 1024))

# set proper nr_hugepages
if [ -n "$freepgs" ] && [ -n "$hpgsize_KB" ]; then
	nr_hugepgs=$(cat /proc/sys/vm/nr_hugepages)
	needpgs=$((needmem_KB / hpgsize_KB))
	tries=2
	while [ "$tries" -gt 0 ] && [ "$freepgs" -lt "$needpgs" ]; do
		lackpgs=$((needpgs - freepgs))
		echo 3 > /proc/sys/vm/drop_caches
		if ! echo $((lackpgs + nr_hugepgs)) > /proc/sys/vm/nr_hugepages; then
			echo "Please run this test as root"
			exit $ksft_skip
		fi
		while read -r name size unit; do
			if [ "$name" = "HugePages_Free:" ]; then
				freepgs=$size
			fi
		done < /proc/meminfo
		tries=$((tries - 1))
	done
	if [ "$freepgs" -lt "$needpgs" ]; then
		printf "Not enough huge pages available (%d < %d)\n" \
		       "$freepgs" "$needpgs"
		exit 1
	fi
else
	echo "no hugetlbfs support in kernel?"
	exit 1
fi

# filter 64bit architectures
ARCH64STR="arm64 ia64 mips64 parisc64 ppc64 ppc64le riscv64 s390x sh64 sparc64 x86_64"
if [ -z "$ARCH" ]; then
	ARCH=$(uname -m 2>/dev/null | sed -e 's/aarch64.*/arm64/')
fi
VADDR64=0
echo "$ARCH64STR" | grep "$ARCH" &>/dev/null && VADDR64=1

# Usage: run_test [test binary] [arbitrary test arguments...]
run_test() {
	if test_selected ${CATEGORY}; then
		local title="running $*"
		local sep=$(echo -n "$title" | tr "[:graph:][:space:]" -)
		printf "%s\n%s\n%s\n" "$sep" "$title" "$sep"

		"$@"
		local ret=$?
		if [ $ret -eq 0 ]; then
			echo "[PASS]"
		elif [ $ret -eq $ksft_skip ]; then
			echo "[SKIP]"
			exitcode=$ksft_skip
		else
			echo "[FAIL]"
			exitcode=1
		fi
	fi # test_selected
}

CATEGORY="hugetlb" run_test ./hugepage-mmap

shmmax=$(cat /proc/sys/kernel/shmmax)
shmall=$(cat /proc/sys/kernel/shmall)
echo 268435456 > /proc/sys/kernel/shmmax
echo 4194304 > /proc/sys/kernel/shmall
CATEGORY="hugetlb" run_test ./hugepage-shm
echo "$shmmax" > /proc/sys/kernel/shmmax
echo "$shmall" > /proc/sys/kernel/shmall

CATEGORY="hugetlb" run_test ./map_hugetlb
CATEGORY="hugetlb" run_test ./hugepage-mremap
CATEGORY="hugetlb" run_test ./hugepage-vmemmap
CATEGORY="hugetlb" run_test ./hugetlb-madvise

if test_selected "hugetlb"; then
	echo "NOTE: These hugetlb tests provide minimal coverage.  Use"
	echo "      https://github.com/libhugetlbfs/libhugetlbfs.git for"
	echo "      hugetlb regression testing."
fi

CATEGORY="mmap" run_test ./map_fixed_noreplace

# get_user_pages_fast() benchmark
CATEGORY="gup_test" run_test ./gup_test -u
# pin_user_pages_fast() benchmark
CATEGORY="gup_test" run_test ./gup_test -a
# Dump pages 0, 19, and 4096, using pin_user_pages:
CATEGORY="gup_test" run_test ./gup_test -ct -F 0x1 0 19 0x1000

uffd_mods=("" ":dev")
for mod in "${uffd_mods[@]}"; do
	CATEGORY="userfaultfd" run_test ./userfaultfd anon${mod} 20 16
	# Hugetlb tests require source and destination huge pages. Pass in half
	# the size ($half_ufd_size_MB), which is used for *each*.
	CATEGORY="userfaultfd" run_test ./userfaultfd hugetlb${mod} "$half_ufd_size_MB" 32
	CATEGORY="userfaultfd" run_test ./userfaultfd hugetlb_shared${mod} "$half_ufd_size_MB" 32
	CATEGORY="userfaultfd" run_test ./userfaultfd shmem${mod} 20 16
done

#cleanup
echo "$nr_hugepgs" > /proc/sys/vm/nr_hugepages

CATEGORY="compaction" run_test ./compaction_test

CATEGORY="mlock" run_test sudo -u nobody ./on-fault-limit

CATEGORY="mmap" run_test ./map_populate

CATEGORY="mlock" run_test ./mlock-random-test

CATEGORY="mlock" run_test ./mlock2-tests

CATEGORY="process_mrelease" run_test ./mrelease_test

CATEGORY="mremap" run_test ./mremap_test

CATEGORY="hugetlb" run_test ./thuge-gen

if [ $VADDR64 -ne 0 ]; then
	CATEGORY="hugevm" run_test ./virtual_address_range

	# virtual address 128TB switch test
	CATEGORY="hugevm" run_test ./va_128TBswitch.sh
fi # VADDR64

# vmalloc stability smoke test
CATEGORY="vmalloc" run_test ./test_vmalloc.sh smoke

CATEGORY="mremap" run_test ./mremap_dontunmap

CATEGORY="hmm" run_test ./test_hmm.sh smoke

# MADV_POPULATE_READ and MADV_POPULATE_WRITE tests
CATEGORY="madv_populate" run_test ./madv_populate

CATEGORY="memfd_secret" run_test ./memfd_secret

# KSM MADV_MERGEABLE test with 10 identical pages
CATEGORY="ksm" run_test ./ksm_tests -M -p 10
# KSM unmerge test
CATEGORY="ksm" run_test ./ksm_tests -U
# KSM test with 10 zero pages and use_zero_pages = 0
CATEGORY="ksm" run_test ./ksm_tests -Z -p 10 -z 0
# KSM test with 10 zero pages and use_zero_pages = 1
CATEGORY="ksm" run_test ./ksm_tests -Z -p 10 -z 1
# KSM test with 2 NUMA nodes and merge_across_nodes = 1
CATEGORY="ksm_numa" run_test ./ksm_tests -N -m 1
# KSM test with 2 NUMA nodes and merge_across_nodes = 0
CATEGORY="ksm_numa" run_test ./ksm_tests -N -m 0

CATEGORY="ksm" run_test ./ksm_functional_tests

run_test ./ksm_functional_tests

# protection_keys tests
if [ -x ./protection_keys_32 ]
then
	CATEGORY="pkey" run_test ./protection_keys_32
fi

if [ -x ./protection_keys_64 ]
then
	CATEGORY="pkey" run_test ./protection_keys_64
fi

CATEGORY="soft_dirty" run_test ./soft-dirty

# COW tests
CATEGORY="cow" run_test ./cow

exit $exitcode