.. This work is licensed under a Creative Commons Attribution 4.0 International
.. License.
.. http://creativecommons.org/licenses/by/4.0
.. (c) OPNFV, Huawei Technologies Co.,Ltd and others.
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Yardstick Test Case Description TC069
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.. _RAMspeed: http://alasir.com/software/ramspeed/
.. table::
:class: longtable
+-----------------------------------------------------------------------------+
|Memory Bandwidth |
| |
+--------------+--------------------------------------------------------------+
|test case id | OPNFV_YARDSTICK_TC069_Memory Bandwidth |
| | |
+--------------+--------------------------------------------------------------+
|metric | Megabyte per second (MBps) |
| | |
+--------------+--------------------------------------------------------------+
|test purpose | To evaluate the IaaS compute performance with regards to |
| | memory bandwidth. |
| | Measure the maximum possible cache and memory performance |
| | while reading and writing certain blocks of data (starting |
| | from 1Kb and further in power of 2) continuously through ALU |
| | and FPU respectively. |
| | Measure different aspects of memory performance via |
| | synthetic simulations. Each simulation consists of four |
| | performances (Copy, Scale, Add, Triad). |
| | Test results, graphs and similar shall be stored for |
| | comparison reasons and product evolution understanding |
| | between different OPNFV versions and/or configurations. |
| | |
+--------------+--------------------------------------------------------------+
|configuration | File: opnfv_yardstick_tc069.yaml |
| | |
| | * SLA (optional): 7000 (MBps) min_bandwidth: The minimum |
| | amount of memory bandwidth that is accepted. |
| | * type_id: 1 - runs a specified benchmark |
| | (by an ID number): |
| | 1 -- INTmark [writing] 4 -- FLOATmark [writing] |
| | 2 -- INTmark [reading] 5 -- FLOATmark [reading] |
| | 3 -- INTmem 6 -- FLOATmem |
| | * block_size: 64 Megabytes - the maximum block |
| | size per array. |
| | * load: 32 Gigabytes - the amount of data load per pass. |
| | * iterations: 5 - test is run 5 times iteratively. |
| | * interval: 1 - there is 1 second delay between each |
| | iteration. |
| | |
+--------------+--------------------------------------------------------------+
|test tool | RAMspeed |
| | |
| | RAMspeed is a free open source command line utility to |
| | measure cache and memory performance of computer systems. |
| | RAMspeed is not always part of a Linux distribution, hence |
| | it needs to be installed in the test image. |
| | |
+--------------+--------------------------------------------------------------+
|references | RAMspeed_ |
| | |
| | ETSI-NFV-TST001 |
| | |
+--------------+--------------------------------------------------------------+
|applicability | Test can be configured with different: |
| | |
| | * benchmark operations (such as INTmark [writing], |
| | INTmark [reading], FLOATmark [writing], |
| | FLOATmark [reading], INTmem, FLOATmem); |
| | * block size per array; |
| | * load per pass; |
| | * number of batch run iterations; |
| | * iterations and intervals. |
| | |
| | There are default values for each above-mentioned option. |
| | |
+--------------+--------------------------------------------------------------+
|pre-test | The test case image needs to be installed into Glance |
|conditions | with RAmspeed included in the image. |
| | |
| | No POD specific requirements have been identified. |
| | |
+--------------+--------------------------------------------------------------+
|test sequence | description and expected result |
| | |
+--------------+--------------------------------------------------------------+
|step 1 | The host is installed as client. RAMspeed is invoked and |
| | logs are produced and stored. |
| | |
| | Result: logs are stored. |
| | |
+--------------+--------------------------------------------------------------+
|test verdict | Test fails if the measured memory bandwidth is below the SLA |
| | value or if there is a test case execution problem. |
| | |
+--------------+--------------------------------------------------------------+
