Hi Fenghua, > -----Original Message----- > From: [email protected] <linux-kernel- > [email protected]> On Behalf Of Fenghua Yu > Sent: Thursday, October 25, 2018 6:07 PM > To: Thomas Gleixner <[email protected]>; Ingo Molnar > <[email protected]>; H Peter Anvin <[email protected]>; Tony Luck > <[email protected]>; Peter Zijlstra <[email protected]>; Reinette > Chatre <[email protected]>; Moger, Babu > <[email protected]>; James Morse <[email protected]>; Ravi V > Shankar <[email protected]>; Sai Praneeth Prakhya > <[email protected]>; Arshiya Hayatkhan Pathan > <[email protected]> > Cc: linux-kernel <[email protected]>; Fenghua Yu > <[email protected]> > Subject: [PATCH v2 0/8] selftests/resctrl: Add resctrl selftest > > With more and more resctrl features are being added by Intel, AMD > and ARM, a test tool is becoming more and more useful to validate > that both hardware and software functionalities work as expected. > > We introduce resctrl selftest to cover resctrl features on both > X86 and ARM architectures. It first implements MBM (Memory Bandwidth > Monitoring) and MBA (Memory Bandwidth Allocation) tests. We can > enhance > the selftest tool to include more functionality tests in future. > > There is an existing resctrl test suit 'intel_cmt_cat'. But the major > purpose of the tool is to test Intel(R) RDT hardware via writing and > reading MSR registers. It does access resctrl file system; but the > functionalities are very limited. And it doesn't support automatic test > and a lot of manual verifications are involved. > > So the selftest tool we are introducing here provides a convenient > tool which does automatic resctrl testing, is easily available in kernel > tree, and will be extended to AMD QoS and ARM MPAM. > > The selftest tool is in tools/testing/selftests/resctrl in order to have > generic test code for all architectures. > > Changelog: > v2: > - Change code based on comments from Babu Moger > - Clean up other places. > > Arshiya Hayatkhan Pathan (2): > selftests/resctrl: Add mbm test > selftests/resctrl: Add mba test
I suggest to use MBM and MBA(all caps) while talking about these features. Same applies in each individual patches. > > Fenghua Yu (2): > selftests/resctrl: Add README for resctrl tests > selftests/resctrl: Add the test in MAINTAINERS > > Sai Praneeth Prakhya (4): > selftests/resctrl: Add basic resctrl file system operations and data > selftests/resctrl: Read memory bandwidth from perf IMC counter and > from resctrl file system > selftests/resctrl: Add callback to start a benchmark > selftests/resctrl: Add built in benchmark > > MAINTAINERS | 1 + > tools/testing/selftests/resctrl/Makefile | 16 + > tools/testing/selftests/resctrl/README | 53 ++ > tools/testing/selftests/resctrl/fill_buf.c | 175 ++++++ > tools/testing/selftests/resctrl/mba_test.c | 175 ++++++ > tools/testing/selftests/resctrl/mbm_test.c | 143 +++++ > tools/testing/selftests/resctrl/membw.c | 678 > ++++++++++++++++++++++++ > tools/testing/selftests/resctrl/resctrl.h | 88 +++ > tools/testing/selftests/resctrl/resctrl_tests.c | 138 +++++ > tools/testing/selftests/resctrl/resctrlfs.c | 465 ++++++++++++++++ > 10 files changed, 1932 insertions(+) > create mode 100644 tools/testing/selftests/resctrl/Makefile > create mode 100644 tools/testing/selftests/resctrl/README > create mode 100644 tools/testing/selftests/resctrl/fill_buf.c > create mode 100644 tools/testing/selftests/resctrl/mba_test.c > create mode 100644 tools/testing/selftests/resctrl/mbm_test.c > create mode 100644 tools/testing/selftests/resctrl/membw.c > create mode 100644 tools/testing/selftests/resctrl/resctrl.h > create mode 100644 tools/testing/selftests/resctrl/resctrl_tests.c > create mode 100644 tools/testing/selftests/resctrl/resctrlfs.c > > -- > 2.5.0
