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.. This work is licensed under a Creative Commons Attribution 4.0 International License.
.. http://creativecommons.org/licenses/by/4.0
.. (c) 2016 ZTE Corp.
***********
Compute QPI
***********
The compute QPI gives user an overall score for system compute performace.
Summary
=======
The compute QPI are calibrated a ZTE `E9000 <http://www.zte.com.cn/global/products/cocloud/cloud_computing/cloud_infrastructure/cloud_hw/429552>`_ server as a baseline with score of 2500 points.
Higher scores are better, with double the score indicating double the performance.
The compute QPI provides three different kinds of scores:
* Workload Scores
* Section Scores
* Compute QPI Scores
Baseline
========
ZTE E9000 server with an 2 Deca core Intel Xeon CPU processor,128560.0MB Memory.
Workload Scores
===============
Each time a workload is executed QTIP calculates a score based on the computer's performance
compared to the baseline performance.
Section Scores
==============
QTIP uses a number of different tests, or workloads, to measure performance.
The workloads are divided into five different sections:
+-----------------+--------------------------------------------------------------+------------------------------------------+
| Section | Detail | Indication |
+=================+==============================================================+==========================================+
| Integer | Integer workloads measure the integer instruction performace | All app relies on integer |
| | of host or vm by performing Dhrystone test. | performance |
+-----------------+--------------------------------------------------------------+------------------------------------------+
| Floating point | Floating point workloads measure the floating pointperfo | Floating point performance is especially |
| | rmance by performing Whetstone test. | important in video games,digital content |
| | | creation applications. |
+-----------------+--------------------------------------------------------------+------------------------------------------+
| Memory | Memory workloads measure memory bandwidth by performing | Software working with cipher large |
| | RamSpeed test. | amounts data relies on SSL Performace. |
+-----------------+--------------------------------------------------------------+------------------------------------------+
| DPI | DPI workloads measure deep-packet inspection speed by | Software working with network packet |
| | performing nDPI test. | anlysis relies on DPI performance. |
+-----------------+--------------------------------------------------------------+------------------------------------------+
| SSL | SSL Performance workloads measure cipher speeds by | Software working with cipher large |
| | using the OpenSSL tool. | amounts data relies on SSL Performace |
+-----------------+--------------------------------------------------------------+------------------------------------------+
A section score is the `geometric mean <https://en.wikipedia.org/wiki/Geometric_mean>`_ of all the workload scores for workloads
that are part of the section. These scores are useful for determining the performance of
the computer in a particular area.
Compute QPI Scores
==================
The compute QPI score is the `weighted arithmetic mean <https://en.wikipedia.org/wiki/Weighted_arithmetic_mean>`_ of the five section scores.
The compute QPI score provides a way to quickly compare performance across different
computers and different platforms without getting bogged down in details.
|
