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[v7,00/16] selftests/resctrl: resctrl_val() related cleanups & improvements

Message ID 20240610151457.7305-1-ilpo.jarvinen@linux.intel.com
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Series selftests/resctrl: resctrl_val() related cleanups & improvements | expand

Message

Ilpo Järvinen June 10, 2024, 3:14 p.m. UTC
Hi all,

This series does a number of cleanups into resctrl_val() and
generalizes it by removing test name specific handling from the
function.

v7:
- Truly use "bound to", not bounded to.
- Fix separator to use 3 dashes

v6:
- Adjust closing/rollback of the IMC perf
- Move the comment in measure_vals() to function level
- Capitalize MBM
- binded to -> bound to
- Language tweak into kerneldoc
- Removed stale paragraph from commit message

v5:
- Open mem bw file only once and use rewind().
- Add \n to mem bw file read to allow reading fresh values from the file.
- Return 0 if create_grp() is given NULL grp_name (matches the original
  behavior). Mention this in function's kerneldoc.
- Cast pid_t to int before printing with %d.
- Caps/typo fixes to kerneldoc and commit messages.
- Use imperative tone in commit messages and improve them based on points
  that came up during review.

v4:
- Merged close fix into IMC READ+WRITE rework patch
- Add loop to reset imc_counters_config fds to -1 to be able know which
  need closing
- Introduce perf_close_imc_mem_bw() to close fds
- Open resctrl mem bw file (twice) beforehand to avoid opening it during
  the test
- Remove MBM .mongrp setup
- Remove mongrp from CMT test

v3:
- Rename init functions to <testname>_init()
- Replace for loops with READ+WRITE statements for clarity
- Don't drop Return: entry from perf_open_imc_mem_bw() func comment
- New patch: Fix closing of IMC fds in case of error
- New patch: Make "bandwidth" consistent in comments & prints
- New patch: Simplify mem bandwidth file code
- Remove wrong comment
- Changed grp_name check to return -1 on fail (internal sanity check)

v2:
- Resolved conflicts with kselftest/next
- Spaces -> tabs correction


Ilpo Järvinen (16):
  selftests/resctrl: Fix closing IMC fds on error and open-code R+W
    instead of loops
  selftests/resctrl: Calculate resctrl FS derived mem bw over sleep(1)
    only
  selftests/resctrl: Make "bandwidth" consistent in comments & prints
  selftests/resctrl: Consolidate get_domain_id() into resctrl_val()
  selftests/resctrl: Use correct type for pids
  selftests/resctrl: Cleanup bm_pid and ppid usage & limit scope
  selftests/resctrl: Rename measure_vals() to measure_mem_bw_vals() &
    document
  selftests/resctrl: Simplify mem bandwidth file code for MBA & MBM
    tests
  selftests/resctrl: Add ->measure() callback to resctrl_val_param
  selftests/resctrl: Add ->init() callback into resctrl_val_param
  selftests/resctrl: Simplify bandwidth report type handling
  selftests/resctrl: Make some strings passed to resctrlfs functions
    const
  selftests/resctrl: Convert ctrlgrp & mongrp to pointers
  selftests/resctrl: Remove mongrp from MBA test
  selftests/resctrl: Remove mongrp from CMT test
  selftests/resctrl: Remove test name comparing from
    write_bm_pid_to_resctrl()

 tools/testing/selftests/resctrl/cache.c       |  10 +-
 tools/testing/selftests/resctrl/cat_test.c    |   5 +-
 tools/testing/selftests/resctrl/cmt_test.c    |  22 +-
 tools/testing/selftests/resctrl/mba_test.c    |  26 +-
 tools/testing/selftests/resctrl/mbm_test.c    |  26 +-
 tools/testing/selftests/resctrl/resctrl.h     |  49 ++-
 tools/testing/selftests/resctrl/resctrl_val.c | 371 ++++++++----------
 tools/testing/selftests/resctrl/resctrlfs.c   |  67 ++--
 8 files changed, 291 insertions(+), 285 deletions(-)

Comments

Shuah Khan June 18, 2024, 11:44 p.m. UTC | #1
On 6/10/24 09:14, Ilpo Järvinen wrote:
> Hi all,
> 
> This series does a number of cleanups into resctrl_val() and
> generalizes it by removing test name specific handling from the
> function.
> 
> v7:
> - Truly use "bound to", not bounded to.
> - Fix separator to use 3 dashes
> 

Applied the series to linux-kselftest next for Linux 6.11-rc1.

thanks,
-- Shuah
Reinette Chatre June 21, 2024, 8:49 p.m. UTC | #2
On 6/18/24 4:44 PM, Shuah Khan wrote:
> On 6/10/24 09:14, Ilpo Järvinen wrote:
>> Hi all,
>>
>> This series does a number of cleanups into resctrl_val() and
>> generalizes it by removing test name specific handling from the
>> function.
>>
>> v7:
>> - Truly use "bound to", not bounded to.
>> - Fix separator to use 3 dashes
>>
> 
> Applied the series to linux-kselftest next for Linux 6.11-rc1.
> 

Thank you very much Shuah.

Reinette