From: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
To: shuah@kernel.org, linux-kselftest@vger.kernel.org
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
tony.luck@intel.com, reinette.chatre@intel.com,
babu.moger@amd.com, james.morse@arm.com,
ravi.v.shankar@intel.com, fenghua.yu@intel.com, x86@kernel.org,
linux-kernel@vger.kernel.org,
Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Subject: [PATCH V1 00/13] Miscellaneous fixes for resctrl selftests
Date: Fri, 6 Mar 2020 19:40:41 -0800 [thread overview]
Message-ID: <cover.1583657204.git.sai.praneeth.prakhya@intel.com> (raw)
This patch set has several miscellaneous fixes to resctrl selftest tool. Some
fixes are minor in nature while other are major fixes.
The minor fixes are
1. Typos, comment format
2. Fix MBA feature detection
3. Fix a bug while selecting sibling cpu
4. Remove unnecessary use of variable arguments
5. Change MBM/MBA results reporting format from absolute values to percentage
The major fixes are changing CAT and CQM test cases. CAT test wasn't testing
CAT as it isn't using the cache it's allocated, hence, change the test case to
test noisy neighbor use case. CAT guarantees a user specified amount of cache
for a process or a group of processes, hence test this use case. The updated
test case checks if critical process is impacted by noisy neighbor or not. If
it's impacted the test fails.
The present CQM test assumes that all the allocated memory (size less than LLC
size) for a process will fit into cache and there won't be any overlappings.
While this is mostly true, it cannot be *always* true by the nature of how cache
works i.e. two addresses could index into same cache line. Hence, change CQM
test such that it now uses CAT. Allocate a specific amount of cache using CAT
and check if CQM reports more than what CAT has allocated.
Fenghua Yu (1):
selftests/resctrl: Fix missing options "-n" and "-p"
Reinette Chatre (4):
selftests/resctrl: Fix feature detection
selftests/resctrl: Fix typo
selftests/resctrl: Fix typo in help text
selftests/resctrl: Ensure sibling CPU is not same as original CPU
Sai Praneeth Prakhya (8):
selftests/resctrl: Fix MBA/MBM results reporting format
selftests/resctrl: Don't use variable argument list for setup function
selftests/resctrl: Fix typos
selftests/resctrl: Modularize fill_buf for new CAT test case
selftests/resctrl: Change Cache Allocation Technology (CAT) test
selftests/resctrl: Change Cache Quality Monitoring (CQM) test
selftests/resctrl: Dynamically select buffer size for CAT test
selftests/resctrl: Cleanup fill_buff after changing CAT test
tools/testing/selftests/resctrl/cache.c | 179 ++++++++-----
tools/testing/selftests/resctrl/cat_test.c | 322 +++++++++++++-----------
tools/testing/selftests/resctrl/cqm_test.c | 210 +++++++++-------
tools/testing/selftests/resctrl/fill_buf.c | 113 ++++++---
tools/testing/selftests/resctrl/mba_test.c | 32 ++-
tools/testing/selftests/resctrl/mbm_test.c | 33 ++-
tools/testing/selftests/resctrl/resctrl.h | 19 +-
tools/testing/selftests/resctrl/resctrl_tests.c | 26 +-
tools/testing/selftests/resctrl/resctrl_val.c | 22 +-
tools/testing/selftests/resctrl/resctrlfs.c | 52 +++-
10 files changed, 592 insertions(+), 416 deletions(-)
--
2.7.4
next reply other threads:[~2020-03-07 3:46 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-07 3:40 Sai Praneeth Prakhya [this message]
2020-03-07 3:40 ` [PATCH V1 01/13] selftests/resctrl: Fix feature detection Sai Praneeth Prakhya
2020-03-09 21:44 ` Reinette Chatre
2020-03-09 22:22 ` Prakhya, Sai Praneeth
2020-03-09 22:33 ` Reinette Chatre
2020-03-09 22:51 ` Prakhya, Sai Praneeth
2020-03-11 18:06 ` Reinette Chatre
2020-03-11 18:22 ` Sai Praneeth Prakhya
2020-03-11 18:45 ` Reinette Chatre
2020-03-11 18:54 ` Sai Praneeth Prakhya
2020-03-07 3:40 ` [PATCH V1 02/13] selftests/resctrl: Fix typo Sai Praneeth Prakhya
2020-03-07 3:40 ` [PATCH V1 03/13] selftests/resctrl: Fix typo in help text Sai Praneeth Prakhya
2020-03-07 3:40 ` [PATCH V1 04/13] selftests/resctrl: Ensure sibling CPU is not same as original CPU Sai Praneeth Prakhya
2020-03-07 3:40 ` [PATCH V1 05/13] selftests/resctrl: Fix missing options "-n" and "-p" Sai Praneeth Prakhya
2020-03-07 3:40 ` [PATCH V1 06/13] selftests/resctrl: Fix MBA/MBM results reporting format Sai Praneeth Prakhya
2020-03-07 3:40 ` [PATCH V1 07/13] selftests/resctrl: Don't use variable argument list for setup function Sai Praneeth Prakhya
2020-03-07 3:40 ` [PATCH V1 08/13] selftests/resctrl: Fix typos Sai Praneeth Prakhya
2020-03-07 3:40 ` [PATCH V1 09/13] selftests/resctrl: Modularize fill_buf for new CAT test case Sai Praneeth Prakhya
2020-03-10 21:59 ` Reinette Chatre
2020-03-11 1:04 ` Sai Praneeth Prakhya
2020-03-11 15:44 ` Reinette Chatre
2020-03-11 17:45 ` Sai Praneeth Prakhya
2020-03-11 18:10 ` Reinette Chatre
2020-03-11 18:14 ` Sai Praneeth Prakhya
2020-03-07 3:40 ` [PATCH V1 10/13] selftests/resctrl: Change Cache Allocation Technology (CAT) test Sai Praneeth Prakhya
2020-03-10 22:14 ` Reinette Chatre
2020-03-11 1:59 ` Sai Praneeth Prakhya
2020-03-11 17:03 ` Reinette Chatre
2020-03-11 19:14 ` Sai Praneeth Prakhya
2020-03-11 20:22 ` Reinette Chatre
2020-03-11 20:55 ` Sai Praneeth Prakhya
2020-03-07 3:40 ` [PATCH V1 11/13] selftests/resctrl: Change Cache Quality Monitoring (CQM) test Sai Praneeth Prakhya
2020-03-10 22:18 ` Reinette Chatre
2020-03-11 2:46 ` Sai Praneeth Prakhya
2020-03-11 17:19 ` Reinette Chatre
2020-03-11 17:33 ` Sai Praneeth Prakhya
2020-03-11 18:03 ` Reinette Chatre
2020-03-11 18:07 ` Sai Praneeth Prakhya
2020-03-07 3:40 ` [PATCH V1 12/13] selftests/resctrl: Dynamically select buffer size for CAT test Sai Praneeth Prakhya
2020-03-10 22:19 ` Reinette Chatre
2020-03-11 2:52 ` Sai Praneeth Prakhya
2020-03-07 3:40 ` [PATCH V1 13/13] selftests/resctrl: Cleanup fill_buff after changing " Sai Praneeth Prakhya
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