1) Chase, J., & Doyle, R. (2001, May). Balance of power: Energy management for server clusters. In Proceedings of the 8th Workshop on Hot Topics in Operating Systems (HotOS) (Vol. 200, No. 1). This paper discussed the Conscious Server Switching for low load. It proposed the idea of routing request to the server based on pre-determined server selection policy. The conscious server switching monitor cluster load and request traffic and schedule the load on minimal possible servers to fulfil the response time request and keeping rest of the servers in sleep mode for managing better energy utilization. The idea used static scheduling algorithm for Load balancing for maintaining energy efficiency of data servers. 2) Farahnakian, F., …show more content…
(2015, April). Process-level power estimation in VM-based systems. In Proceedings of the Tenth European Conference on Computer Systems (p. 14). ACM. This paper talks about implementation of VM based power meter named BITWATTS which can be used to get process level power estimation in a virtualized environment. 5) PowerAPI. Retrieved October 04, 2017, from http://www.powerapi.org/ Website for powerAPI, an open source software-defined power meter, developed by the Spirals Research Group. 6) Noureddine, A., Bourdon, A., Rouvoy, R., & Seinturier, L. (2012, June). A preliminary study of the impact of software engineering on greenit. In Green and Sustainable Software (GREENS), 2012 First International Workshop on (pp. 21-27). IEEE. This paper is talking about monitoring energy consumption by system level processes using tools such as powerAPI. PowerAPI is a tool which can give power consumption per process based on CPU, networking etc. parameters. This paper evaluates eight implementations of Tower of Hanoi problem in different programming languages and slight variation in the algorithm. 7) Desrochers, S., Paradis, C., & Weaver, V. M. (2016, October). A Validation of DRAM RAPL Power Measurements. In Proceedings of the Second International Symposium on Memory Systems (pp. 455-470). ACM. This paper validates newly introduced DRAM Running Average Power Limit(RAPL) interface of Intel on Desktop and Haswell machine on both DDR3 and CCR4 memory. RAPL is an
High performance servers depend on low latency, extended uptime, power efficiency and process scheduling. All of those factors hinge upon the quality of the CPU. Dependability makes or breaks client relationships and user interactivity. For mission critical deployments, the Intel Xeon E3-1270 V2 3.5 GHz Quad-Core processor ensures quality performance for serious systems. More cores to handle high user volume ensures fast response time. A TDP of 69W reflects power efficiency to keep overhead down. Whether hosting a search engine, cloud software, forums with high volume feedback, or browser based games, Intel delivers with Xeon.
1. PUE (Power usage effectiveness), the ratio of total facility energy to IT equipment energy within a data computer, which measures how much of the power is actually used by the computing equipment. It is an important place to start when considering how to reduce data center power consumption because it is one of the most effective metrics for measuring data center energy efficiency. PUE is calculated by taking the total power of consumed by a data center facility then dividing by the power consumed by the IT equipment. In practical terms, a PUE value of 1 means that all power going into the data center is being used to power IT equipment. Anything above a value of 1 means there is data center
4. Performance Comparison of Dual Core Processors Using Multiprogrammed and Multithreaded Benchmarks ............................................................................................... 31 4.1 Overview ........................................................................................................... 31 4.2 Methodology ..................................................................................................... 31 Multiprogrammed Workload Measurements .................................................... 33 4.3 4.4 Multithreaded Program Behavior ..................................................................... 36 5. 6. Related Work ............................................................................................................ 39 Conclusion ................................................................................................................ 41
This project deals with the calculation of the energy meter billing with prepaid facility by using Smartcard based on the load consumption with GSM communication . The microcontroller calculates the rupees that will be consumed by the loads as per the amount inserted in prepaid recharge card ,which acts as input and displays it on the 16X2 LCD interfaced with the microcontroller. This project thesis is also covers the recharge option on every insert of card in smart module and the power is continued to process. This project is powered by an on-board power supply takes the ac power and converts it into dc power that is fed to on-board devices and integrated circuits.
The increasing popularity of cloud computing platforms rises the demand for the existing infrastructures like Elastic Compute Cloud and Private Compute Cloud. The increasing number of cloud computing proportionally increases the servers and size of the data centers. The energy consumption cost of this environment has been steadily increasing which is a major concern. Different allocation policies are used to match virtual machines to physical hosts in a cloud environment. Using minimization algorithm and CPU voltage scaling we can deploy high performance computing services and minimizing carbon emissions, energy consumption. This paper explains about seven allocation policies and their affects on energy consumption and CPU load on overall energy cost, in a cloud environment base on dynamic website loads.
There have been many studies of load balancing for the cloud environment. Load balancing in cloud computing was discussed in a white paper by Adler [3] who introduced the tools techniques commonly used for load balancing in cloud. However load balancing is still a new problem in cloud computing that
Finally, the server is responsible for handling mixture of different task, such as accessing and updating the database, running web components of the project (server to handle multiple clients in multi-player games) and hosting a web site. These tasks rely heavily on CPU, RAM, HDD. It is worth to note that the specifications of a server are dependent on how many users are going to connect to the server and what purpose it is going to serve.
According to a study, in the year of 2000, 45% of IT budget was spent on capital expenditure whereas only 6% of the resulting server capacity was utilized1. In this scenario, in the next couple of years the cost of server maintenance would exceed the capital expenditure invested with very less utilization ratio. Datacenters of large scales can reduce the economies and time of computing to a large extent and also contribute to the Green IT initiative saving the environment.
The system memories requirement depends greatly on the nature of the applications which run on the system. Memory performance and capacity requirements are small for simple, low cost systems. In contrast, memory throughput can be the most critical requirement in complex, high performance systems. The following general types of memories can be used in systems such as Volatile and non-volatile memories. SRAM can be found in the cache memory of a computer or as a part of the RAM digital to analog converters on video cards. Static RAM is also used for high-speed registers, caches and small memory banks like a frame buffer on a display adapter. Several scientific and industrial subsystems, modern appliances, automotive electronics, electronic toys, mobile phones, synthesizers and digital cameras also use SRAM. It is also highly recommended for use in PCs, peripheral equipment, printers, LCD screens, hard disk buffers etc. Different transistor counts in used in SRAM architecture such as Bipolar junction transistors used in TTL and ECL which is very fast but consumes a lot of power and MOSFET used in CMOS which is used at low power and also very common today. This paper proposed to improve the stability of SRAM cell and also reduces
A simple architecture of cloud computing consist the data centers servers for web application as well as a switch whose function is balancing the load and distribute the load to set of application server also hav-ing set of backend storage server. Fig. 1 shows the typical architecture of data center server for the In-ternet applications. It consists of a load balancing switch, a set of application servers, and a set of backend storage servers. The front end switch is typically a Layer 7 switch [5] which parses application level informa-tion in Web requests and forwards them to the servers with the corresponding applications running.
Abstract: Load balancing is essential for optimization of resources in distributed environments. The major goal of the cloud computing service providers is to use cloud computing resources efficiently to enhance the overall performance. Load balancing in cloud computing environment is a methodology to distribute workload across multiple computers to achieve optimal resource utilization with minimum response time. The proposed system pave the way for the green
Abstract—To meet the Electric Power demands of a fast expanding economy, smart grid (SG) are expected to have reliable, efficient, secured and cost-effective power management system. Additionally, energy demands from the users change dynamically in different time-periods (such as on-peak , and off-peak) , which required dynamically availability
In this paper, we will cover the memory management of Windows NT which will be covered in first section, and microprocessors which will be covered in second section. When covering the memory management of Windows NT, we will go through physical memory management and virtual memory management of that operating system. In virtual memory management section, we will learn how Windows NT managing its virtual memory by using paging and mapped file I/O.
Nowadays the consumption of energy has increased rapidly in data centers due to increase in use of internet and cloud computing
There has been a lot of energy used to power data centers. So much energy used, that digital warehouses hold up to thirty billion watts of electricity. Peter Gross, who has designed many data centers, said, “A single data center can take more power than a medium sized town.”(2) The amount of energy used usually depends on the specific company that uses the data center. Most of the energy used in data centers are to keep the servers prepared just in case of a surge,