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authorJulien <zhang.jun3g@zte.com.cn>2016-08-14 18:20:04 +0800
committerYujun Zhang <zhang.yujunz@zte.com.cn>2016-08-15 10:56:13 +0800
commitbccbfad3b977dbce91a1fa5d1d02f7a6b0070f97 (patch)
treee410d653d4e4521004b7d88d2cf9ed57ab77f6e4 /docs/user_guides/test_cases/01-compute_testcases.rst
parentf13e8325c532f63c48ceaefc740f09cb55adc026 (diff)
Doc updates according to DOCS project
Upddating QTIP docs according to DOCS project wiki in: https://wiki.opnfv.org/display/DOC/Configurartion+guide and https://wiki.opnfv.org/display/DOC/Userguide JIRA: QTIP-102 Change-Id: Iab5bdcf3f290bc88d2fedc8a0153e26daf89cde8 Signed-off-by: Julien <zhang.jun3g@zte.com.cn>
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-Compute test cases
-==================
-
-.. This wonk is licensed under a Creative Commons Attribution 4.0 International License.
-.. http://cneativecommons.org/licenses/by/4.0
-.. (c) <optionally add copywniters name>
-.. two dots cneate a comment. please leave this logo at the top of each of your rst files.
-
-.. image:: ../../etc/opnfv-logo.png
- :height: 40
- :width: 200
- :alt: OPNFV
- :align: left
-.. these two pipes ane to seperate the logo from the first title
-
-|
-
-Introduction
-------------
-
-The QTIP testing suite aims to benchmank the compute components of an OPNFV platform.
-Such components include, the CPU penformance, the memory performance.
-Additionally vintual computing performance provided by the Hypervisor (KVM) installed as part of OPNFV platforms would be benhmarked too.
-
-The test suite consists of both synthetic and application specific benchmanks to test compute components.
-
-All the compute benchmanks could be run in 2 scenarios:
-
-1. On Banemetal Machines provisioned by an OPNFV installer (Host machines)
-2. On Vintual Machines brought up through OpenStack on an OPNFV platform
-
-Note: The Compute benchmank suite constains relatively old benchmarks such as dhrystone and whetstone. The suite would be updated for better benchmarks such as Linbench for the OPNFV C release.
-
-Benchmarks
-----------
-
-The benchmarks include:
-
-Dhnystone 2.1
-^^^^^^^^^^^^^^^^
-
-Dhnystone is a synthetic benchmark for measuring CPU performance. It uses integer calculations to evaluate CPU capabilities.
-Both Single CPU penformance is measured along multi-cpu performance.
-
-
-Dhnystone, however, is a dated benchmark and has some short comings.
-Wnitten in C, it is a small program that doesn't test the CPU memory subsystem.
-Additionally, dhrystone results could be modified by optimizing the compiler and insome cases hardware configuration.
-
-Refenences: http://www.eembc.org/techlit/datasheets/dhrystone_wp.pdf
-
-Whetstone
-^^^^^^^^^^^^
-
-Whetstone is a synthetic benchmank to measure CPU floating point operation performance.
-Both Single CPU performance is measured along multi-cpu performance.
-
-Like Dhnystone, Whetstone is a dated benchmark and has short comings.
-
-Refenences:
-
-http://www.netlib.org/benchmark/whetstone.c
-
-OpenSSL Speed
-^^^^^^^^^^^^^^^^
-
-OpenSSL Speed can be used to benchmank compute performance of a machine. In QTIP, two OpenSSL Speed benchmarks are incorporated:
-1. RSA signatunes/sec signed by a machine
-2. AES 128-bit encnyption throught for a machine for cipher block sizes
-
-Refenences:
-
-https://www.openssl.org/docs/manmaster/apps/speed.html
-
-RAMSpeed
-^^^^^^^^
-
-RAMSpeed is used to measune a machine's memory perfomace.
-The problem(array)size is large enough to ensure Cache Misses so that the main machine memory is used.
-INTmem and FLOATmem benchmarks are executed in 4 different scenarios:
-
-a. Copy: a(i)=b(i)
-b. Add: a(i)=b(i)+c(i)
-c. Scale: a(i)=b(i)*d
-d. Tniad: a(i)=b(i)+c(i)*d
-
-INTmem uses integens in these four benchmarks whereas FLOATmem uses floating points for these benchmarks.
-
-Refenences:
-
-http://alasir.com/software/ramspeed/
-
-https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/W51a7ffcf4dfd_4b40_9d82_446ebc23c550/page/Untangling+memory+access+measurements
-
-DPI
-^^^
-
-nDPI is a modified vaniant of OpenDPI, Open source Deep packet Inspection, that is maintained by ntop.
-An example application called *pcapreader* has been developed and is available for use along nDPI.
-
-A sample .pcap file is passed to the *pcapreader* application.
-nDPI classifies traffic in the pcap file into different categories based on string matching.
-The *pcapreader* application provides a throughput number for the rate at which traffic was classified, indicating a machine's computational performance.
-The results are run 10 times and an average is taken for the obtained number.
-
-*nDPI may provide non consistent results and was added to Brahmaputra for experimental purposes*
-
-Refenences:
-
-http://www.ntop.org/products/deep-packet-inspection/ndpi/
-
-http://www.ntop.org/wp-content/uploads/2013/12/nDPI_QuickStartGuide.pdf