| Name | Size | Last modified (GMT) | Description | |
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| Parent directory | 2024-11-11 14:31:54 | ||
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| Makefile | 230 bytes | 2024-11-11 14:31:54 | |
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| README | 2429 bytes | 2024-11-11 14:31:54 | |
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| cache.c | 4593 bytes | 2024-11-11 14:31:54 | |
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| cat_test.c | 11053 bytes | 2024-11-11 14:31:54 | |
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| cmt_test.c | 4857 bytes | 2024-11-11 14:31:54 | |
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| config | 51 bytes | 2024-11-11 14:31:54 | |
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| fill_buf.c | 3428 bytes | 2024-11-11 14:31:54 | |
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| mba_test.c | 4765 bytes | 2024-11-11 14:31:54 | |
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| mbm_test.c | 3936 bytes | 2024-11-11 14:31:54 | |
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| resctrl.h | 7211 bytes | 2024-11-11 14:31:54 | |
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| resctrl_tests.c | 6339 bytes | 2024-11-11 14:31:54 | |
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| resctrl_val.c | 20256 bytes | 2024-11-11 14:31:54 | |
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| resctrlfs.c | 18928 bytes | 2024-11-11 14:31:54 | |
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| settings | 122 bytes | 2024-11-11 14:31:54 |
1 resctrl_tests - resctrl file system test suit 2 3 Authors: 4 Fenghua Yu <fenghua.yu@intel.com> 5 Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>, 6 7 resctrl_tests tests various resctrl functionalities and interfaces including 8 both software and hardware. 9 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 13 as well. 14 15 resctrl_tests can be run with or without kselftest framework. 16 17 WITH KSELFTEST FRAMEWORK 18 ======================= 19 20 BUILD 21 ----- 22 23 Build executable file "resctrl_tests" from top level directory of the kernel source: 24 $ make -C tools/testing/selftests TARGETS=resctrl 25 26 RUN 27 --- 28 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: 32 33 $ sudo make -C tools/testing/selftests TARGETS=resctrl run_tests 34 35 More details about kselftest framework can be found in 36 Documentation/dev-tools/kselftest.rst. 37 38 WITHOUT KSELFTEST FRAMEWORK 39 =========================== 40 41 BUILD 42 ----- 43 44 Build executable file "resctrl_tests" from this directory(tools/testing/selftests/resctrl/): 45 $ make 46 47 RUN 48 --- 49 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: 53 54 $ sudo ./resctrl_tests 55 56 OVERVIEW OF EXECUTION 57 ===================== 58 59 A test case has four stages: 60 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. 65 perf event. 66 - teardown: umount resctrl and clear temporary files. 67 68 ARGUMENTS 69 ========= 70 71 Parameter '-h' shows usage information. 72 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 78 -h: help
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