linux-kernel - [PATCH v2 00/24] selftests/resctrl: Fixes, cleanups, and rewritten CAT test

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Date:   Tue, 18 Apr 2023 14:44:42 +0300
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     linux-kselftest@...r.kernel.org,
        Reinette Chatre <reinette.chatre@...el.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Shuah Khan <shuah@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        Shaopeng Tan <tan.shaopeng@...fujitsu.com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH v2 00/24] selftests/resctrl: Fixes, cleanups, and rewritten CAT test

Here is a series with some fixes and cleanups to resctrl selftests and
rewrite of CAT test into something that really tests CAT working or not
condition.

v2:
- Rebased on top of next to solve the conflicts
- Added 2 patches related to resctrl FS mount/umount (fix + cleanup)
- Consistently use "alloc" in cache_alloc_size()
- CAT test error handling tweaked
- Remove a spurious newline change from the CAT patch
- Small improvements to changelogs

Ilpo Järvinen (24):
  selftests/resctrl: Add resctrl.h into build deps
  selftests/resctrl: Check also too low values for CBM bits
  selftests/resctrl: Move resctrl FS mount/umount to higher level
  selftests/resctrl: Remove mum_resctrlfs
  selftests/resctrl: Make span unsigned long everywhere
  selftests/resctrl: Express span in bytes
  selftests/resctrl: Remove duplicated preparation for span arg
  selftests/resctrl: Don't use variable argument list for ->setup()
  selftests/resctrl: Remove "malloc_and_init_memory" param from
    run_fill_buf()
  selftests/resctrl: Split run_fill_buf() to alloc, work, and dealloc
    helpers
  selftests/resctrl: Remove start_buf local variable from buffer alloc
    func
  selftests/resctrl: Don't pass test name to fill_buf
  selftests/resctrl: Add flush_buffer() to fill_buf
  selftests/resctrl: Remove test type checks from cat_val()
  selftests/resctrl: Refactor get_cbm_mask()
  selftests/resctrl: Create cache_alloc_size() helper
  selftests/resctrl: Replace count_bits with count_consecutive_bits()
  selftests/resctrl: Exclude shareable bits from schemata in CAT test
  selftests/resctrl: Pass the real number of tests to show_cache_info()
  selftests/resctrl: Move CAT/CMT test global vars to func they are used
  selftests/resctrl: Read in less obvious order to defeat prefetch
    optimizations
  selftests/resctrl: Split measure_cache_vals() function
  selftests/resctrl: Split show_cache_info() to test specific and
    generic parts
  selftests/resctrl: Rewrite Cache Allocation Technology (CAT) test

 tools/testing/selftests/resctrl/Makefile      |   2 +-
 tools/testing/selftests/resctrl/cache.c       | 154 ++++++------
 tools/testing/selftests/resctrl/cat_test.c    | 235 ++++++++----------
 tools/testing/selftests/resctrl/cmt_test.c    |  65 +++--
 tools/testing/selftests/resctrl/fill_buf.c    | 105 ++++----
 tools/testing/selftests/resctrl/mba_test.c    |   9 +-
 tools/testing/selftests/resctrl/mbm_test.c    |  17 +-
 tools/testing/selftests/resctrl/resctrl.h     |  32 +--
 .../testing/selftests/resctrl/resctrl_tests.c |  82 ++++--
 tools/testing/selftests/resctrl/resctrl_val.c |   9 +-
 tools/testing/selftests/resctrl/resctrlfs.c   | 187 ++++++++++----
 11 files changed, 499 insertions(+), 398 deletions(-)

-- 
2.30.2