1 resctrl_tests - resctrl file system test suit
4 Fenghua Yu <fenghua.yu@intel.com>
5 Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>,
7 resctrl_tests tests various resctrl functionalities and interfaces including
8 both software and hardware.
10 Currently it supports Memory Bandwidth Monitoring test and Memory Bandwidth
11 Allocation test on Intel RDT hardware. More tests will be added in the future.
12 And the test suit can be extended to cover AMD QoS and ARM MPAM hardware
15 resctrl_tests can be run with or without kselftest framework.
17 WITH KSELFTEST FRAMEWORK
18 =======================
23 Build executable file "resctrl_tests" from top level directory of the kernel source:
24 $ make -C tools/testing/selftests TARGETS=resctrl
29 Run resctrl_tests as sudo or root since the test needs to mount resctrl file
30 system and change contents in the file system.
31 Using kselftest framework will run all supported tests within resctrl_tests:
33 $ sudo make -C tools/testing/selftests TARGETS=resctrl run_tests
35 More details about kselftest framework can be found in
36 Documentation/dev-tools/kselftest.rst.
38 WITHOUT KSELFTEST FRAMEWORK
39 ===========================
44 Build executable file "resctrl_tests" from this directory(tools/testing/selftests/resctrl/):
50 Run resctrl_tests as sudo or root since the test needs to mount resctrl file
51 system and change contents in the file system.
52 Executing the test without any parameter will run all supported tests:
54 $ sudo ./resctrl_tests
59 A test case has four stages:
61 - setup: mount resctrl file system, create group, setup schemata, move test
62 process pids to tasks, start benchmark.
63 - execute: let benchmark run
64 - verify: get resctrl data and verify the data with another source, e.g.
66 - teardown: umount resctrl and clear temporary files.
71 Parameter '-h' shows usage information.
73 usage: resctrl_tests [-h] [-b "benchmark_cmd [options]"] [-t test list] [-n no_of_bits]
74 -b benchmark_cmd [options]: run specified benchmark for MBM, MBA and CMT default benchmark is builtin fill_buf
75 -t test list: run tests specified in the test list, e.g. -t mbm,mba,cmt,cat
76 -n no_of_bits: run cache tests using specified no of bits in cache bit mask
77 -p cpu_no: specify CPU number to run the test. 1 is default