+x86 maintainers
Dear kselftest and x86 maintainers,
I am wondering about the appropriate path for this series and also other pending resctrl selftest patches. Would you prefer it routed via x86 or kselftest? If x86 I expect that we have to do a better job of including x86 maintainers in all resctrl selftest patch reviews.
Reinette
On 3/10/2023 2:25 PM, Reinette Chatre wrote:
Hi Shuah,
Could you please consider taking this series in via the linux-kselftest tree?
Thank you very much
Reinette
On 2/15/2023 12:32 AM, Shaopeng Tan wrote:
Hello,
The aim of this patch series is to improve the resctrl selftest. Without these fixes, some unnecessary processing will be executed and test results will be confusing. There is no behavior change in test themselves.
[patch 1] Make write_schemata() run to set up shemata with 100% allocation on first run in MBM test. [patch 2] The MBA test result message is always output as "ok", make output message to be "not ok" if MBA check result is failed. [patch 3] When a child process is created by fork(), the buffer of the parent process is also copied. Flush the buffer before executing fork(). [patch 4] An error occurs whether in parents process or child process, the parents process always kills child process and runs umount_resctrlfs(), and the child process always waits to be killed by the parent process. [patch 5] If a signal received, to cleanup properly before exiting the parent process, commonize the signal handler registered for CMT/MBM/MBA tests and reuse it in CAT, also unregister the signal handler at the end of each test. [patch 6] Before exiting each test CMT/CAT/MBM/MBA, clear test result files function cat/cmt/mbm/mba_test_cleanup() are called twice. Delete once.
This patch series is based on Linux v6.2-rc7.
Difference from v7: [patch 4]
- Fix commitlog.
[patch 5]
- Fix commitlog.
Pervious versions of this series: [v1] https://lore.kernel.org/lkml/20220914015147.3071025-1-tan.shaopeng@jp.fujits... [v2] https://lore.kernel.org/lkml/20221005013933.1486054-1-tan.shaopeng@jp.fujits... [v3] https://lore.kernel.org/lkml/20221101094341.3383073-1-tan.shaopeng@jp.fujits... [v4] https://lore.kernel.org/lkml/20221117010541.1014481-1-tan.shaopeng@jp.fujits... [v5] https://lore.kernel.org/lkml/20230111075802.3556803-1-tan.shaopeng@jp.fujits... [v6] https://lore.kernel.org/lkml/20230131054655.396270-1-tan.shaopeng@jp.fujitsu... [v7] https://lore.kernel.org/lkml/20230213062428.1721572-1-tan.shaopeng@jp.fujits...
Shaopeng Tan (6): selftests/resctrl: Fix set up schemata with 100% allocation on first run in MBM test selftests/resctrl: Return MBA check result and make it to output message selftests/resctrl: Flush stdout file buffer before executing fork() selftests/resctrl: Cleanup properly when an error occurs in CAT test selftests/resctrl: Commonize the signal handler register/unregister for all tests selftests/resctrl: Remove duplicate codes that clear each test result file
tools/testing/selftests/resctrl/cat_test.c | 29 ++++---- tools/testing/selftests/resctrl/cmt_test.c | 7 +- tools/testing/selftests/resctrl/fill_buf.c | 14 ---- tools/testing/selftests/resctrl/mba_test.c | 23 +++---- tools/testing/selftests/resctrl/mbm_test.c | 20 +++--- tools/testing/selftests/resctrl/resctrl.h | 2 + .../testing/selftests/resctrl/resctrl_tests.c | 4 -- tools/testing/selftests/resctrl/resctrl_val.c | 67 ++++++++++++++----- tools/testing/selftests/resctrl/resctrlfs.c | 5 +- 9 files changed, 96 insertions(+), 75 deletions(-)