中文 | ENGLISH
HOTLINE 

+86 0755-28137455

Specialize in providing 

industry-leading logistics automation systems

Search

Copyright © 2016 Shenzhen Headway Industrial Automation Equipment Co., Ltd. All Rights Reserved.
粤ICP备14101621号 Tel:18675505218  Fax:0755-89485857 Powered by:300.cn 
Add:Shenzhen City Guanlan town Xintian community Zhongrui Industrial Park building A 

LINKS

HOME  |  ABOUT US  |  PRODUCTS  |  NEWS  |  CASE  |  SERVICE  |  CONTACT

>
>
>
Analysis of Main Performance Indexes of Pipeline

NEWS

Analysis of Main Performance Indexes of Pipeline

Release time:
2012/09/11
Page view
Analysis of Main Performance Indexes of Pipeline
 
The performance of a pipeline to measure the level of written data mainly by the throughput, efficiency and speed to determine the three parameters.  
 
Throughput
 
Refers to the number of results of tasks or output data that a pipeline in a computer can process at a particular time. Pipeline throughput can be further divided into maximum throughput and actual throughput. They are mainly and the processing time of the water section, the buffer is sent 
 
Pipeline technology
 
The longer the pipeline's processing time, the greater the latency of the buffer register, the smaller the throughput of the pipeline. Since, in the linear pipeline, the maximum throughput Tpmax = pipeline clock cycle? T / 1 = max (T1, ... Ti, ..Tm) + T1 / 1, where m is the number of stages of the pipeline, i is the specific Process segment execution time. If the number of segments of a pipeline is larger, the longer the process execution time is, the less the theoretical throughput of the pipeline. 
 
Thus, the treatment of the bottleneck portion of the pipeline is mainly to reduce the processing time of the water stream. There are two ways to achieve:
 
1, the bottleneck part of the pipeline split, so that the task can be fully water treatment. Flow segment of the processing time is too long, usually due to the task caused by congestion, and the task of blocking the pipeline will lead to the same clock cycle can not start another operation, you can divide the water segment in the middle of the small water segment set buffer register , Buffer on a water segment of the task, so that the pipeline full of water. If the processing time of the X-water section is 3T, the X-flow section can be subdivided into three small sections, so that the function of each section is the same, but the processing time has become 3T / 3 = T.
 
Pipeline technology
 
2, in the bottleneck part of the same set of sections of water, parallel processing. To deal with the water section of the treatment time is too long, there is another way, that is, the bottleneck of the water with a number of parallel sections instead of the same, in front of a dispatch unit to assign the task of each water segment. Still assume that the bottleneck water treatment time is △ 3T, then through the three parallel water treatment at the same time, the actual time required is only △ T. In this way, to shorten the water treatment time, but this method is relatively small to use, because the same paragraph to paragraph 3 of the parallel, the higher cost, and dispatching unit will be more trouble to deal with.
 
Speedup ratio
 
Refers to a pipeline if the use of serial mode after the working speed and pipeline mode using the ratio of the speed of work, the greater the value, indicating that the work of this pipeline the better way.
 
effectiveness
 
Use efficiency: refers to the assembly line, the utilization of various components. Since the pipeline has setup time at the beginning of the work; there is an emptying time at the end, the individual components can not always be in operation, and there is always a component that is idle for a certain period of time. The operating efficiency of the assembly is illustrated by the ratio of components in operation to the total parts.

HEADWAY

TEL:0755-28137455
PHONE:18675505218
FAX:0755-89485857
E-MAIL:
28137455@163.com
ADD:Shenzhen City Guanlan
town Xintian community Zhongrui Industrial Park building A

Contact us