selftests/vm/test_vmalloc.sh

33 		echo "$0: Must be run as root"
38 		echo "$0: You need modprobe installed"
43 		echo "$0: You must have the following enabled in your kernel:"
44 		echo "CONFIG_TEST_VMALLOC=m"
51 	echo "Run performance tests to evaluate how fast vmalloc allocation is."
52 	echo "It runs all test cases on one single CPU with sequential order."
55 	echo "Done."
56 	echo "Ccheck the kernel message buffer to see the summary."
61 	echo "Run stability tests. In order to stress vmalloc subsystem we run"
62 	echo "all available test cases on all available CPUs simultaneously."
63 	echo "It will take time, so be patient."
66 	echo "Done."
67 	echo "Check the kernel ring buffer to see the summary."
72 	echo "Run smoke test. Note, this test provides basic coverage."
73 	echo "Please check $0 output how it can be used"
74 	echo "for deep performance analysis as well as stress testing."
77 	echo "Done."
78 	echo "Check the kernel ring buffer to see the summary."
83 	echo -n "Usage: $0 [ performance ] | [ stress ] | | [ smoke ] | "
84 	echo "manual parameters"
85 	echo
86 	echo "Valid tests and parameters:"
87 	echo
89 	echo
90 	echo "Example usage:"
91 	echo
92 	echo "# Shows help message"
93 	echo "./${DRIVER}.sh"
94 	echo
95 	echo "# Runs 1 test(id_1), repeats it 5 times on all online CPUs"
96 	echo "./${DRIVER}.sh run_test_mask=1 test_repeat_count=5"
97 	echo
98 	echo -n "# Runs 4 tests(id_1|id_2|id_4|id_16) on one CPU with "
99 	echo "sequential order"
100 	echo -n "./${DRIVER}.sh single_cpu_test=1 sequential_test_order=1 "
101 	echo "run_test_mask=23"
102 	echo
103 	echo -n "# Runs all tests on all online CPUs, shuffled order, repeats "
104 	echo "20 times"
105 	echo "./${DRIVER}.sh test_repeat_count=20"
106 	echo
107 	echo "# Performance analysis"
108 	echo "./${DRIVER}.sh performance"
109 	echo
110 	echo "# Stress testing"
111 	echo "./${DRIVER}.sh stress"
112 	echo
136 			echo "Error: key or value is not correct: ${key} $val"
150 	echo "Run the test with following parameters: $@"
152 	echo "Done."
153 	echo "Check the kernel ring buffer to see the summary."