linux-kernel - [PATCH v5 01/13] selftests/resctrl: Add README for resctrl tests

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Date:   Fri, 18 Jan 2019 18:27:02 +0000
From:   "Moger, Babu" <Babu.Moger@....com>
To:     "fenghua.yu@...el.com" <fenghua.yu@...el.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "hpa@...or.com" <hpa@...or.com>,
        "tony.luck@...el.com" <tony.luck@...el.com>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "reinette.chatre@...el.com" <reinette.chatre@...el.com>,
        "Moger, Babu" <Babu.Moger@....com>,
        "james.morse@....com" <james.morse@....com>,
        "xiaochen.shen@...el.com" <xiaochen.shen@...el.com>,
        "ravi.v.shankar@...el.com" <ravi.v.shankar@...el.com>,
        "sai.praneeth.prakhya@...el.com" <sai.praneeth.prakhya@...el.com>,
        "arshiya.hayatkhan.pathan@...el.com" 
        <arshiya.hayatkhan.pathan@...el.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>
Subject: [PATCH v5 01/13] selftests/resctrl: Add README for resctrl tests

From: Fenghua Yu <fenghua.yu@...el.com>

resctrl tests will be implemented. README is added for the tool first.

Signed-off-by: Fenghua Yu <fenghua.yu@...el.com>
Signed-off-by: Babu Moger <babu.moger@....com>
---
 tools/testing/selftests/resctrl/README | 53 ++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 tools/testing/selftests/resctrl/README

diff --git a/tools/testing/selftests/resctrl/README b/tools/testing/selftests/resctrl/README
new file mode 100644
index 0000000..f9621d6
--- /dev/null
+++ b/tools/testing/selftests/resctrl/README
@@ -0,0 +1,53 @@
+resctrl_tests - resctrl file system test suit
+
+Authors:
+	Fenghua Yu <fenghua.yu@...el.com>
+	Sai Praneeth Prakhya <sai.praneeth.prakhya@...el.com>,
+	Arshiya Hayatkhan Pathan <arshiya.hayatkhan.pathan@...el.com>
+
+resctrl_tests tests various resctrl functionalities and interfaces including
+both software and hardware.
+
+Currently it supports Memory Bandwidth Monitoring test and Memory Bandwidth
+Allocation test on Intel RDT hardware. More tests will be added in the future.
+And the test suit can be extended to cover AMD QoS and ARM MPAM hardware
+as well.
+
+BUILD
+-----
+
+Run "make" to build executable file "resctrl_tests".
+
+RUN
+---
+
+To use resctrl_tests, root or sudoer privileges are required. This is because
+the test needs to mount resctrl file system and change contents in the file
+system.
+
+Executing the test without any parameter will run all supported tests:
+
+	sudo ./resctrl_tests
+
+OVERVIEW OF EXECUTION
+---------------------
+
+A test case has four stages:
+
+  - setup: mount resctrl file system, create group, setup schemata, move test
+    process pids to tasks, start benchmark.
+  - execute: let benchmark run
+  - verify: get resctrl data and verify the data with another source, e.g.
+    perf event.
+  - teardown: umount resctrl and clear temporary files.
+
+ARGUMENTS
+---------
+
+Parameter '-h' shows usage information.
+
+usage: resctrl_tests [-h] [-b "benchmark_cmd [options]"] [-t test list] [-n no_of_bits]
+        -b benchmark_cmd [options]: run specified benchmark for MBM, MBA and CQM default benchmark is builtin fill_buf
+        -t test list: run tests specified in the test list, e.g. -t mbm, mba, cqm, cat
+        -n no_of_bits: run cache tests using specified no of bits in cache bit mask
+        -h: help
-- 
1.8.3.1