Tài liệu Measuring Drive Performance doc

... Measuring Drive Performance lesson 10 This lesson includes the following sections: • Average Access Time • File Compression • Data-Transfer Rate • Drive- Interface Standards ... ns Dynamic RAM (DRAM) 50-70 ns Read only memory (ROM) 55-250 ns Hard disk drives 6-12 ms CD ROM drives 80-800 ms Tape drives 20-500 s Typical Access Times for Memory and Storage Devices File ... dev...

Ngày tải lên: 16/02/2014, 13:20

Ngày tải lên: 21/02/2014, 16:21

... 1 % above the example. Performance efficiency, however, must jump from 58% to more than 95%. Obviously, here is the big improvement opportunity. And what drags down performance efficiency? ... Effectiveness) =Equipment Availability (EA) x Performance Efficiency (PE) x Rate of Quality (RQ) NEE (Net Equipment Effectiveness) =Uptime (UT) x Performance Efficiency (PE) x...

Ngày tải lên: 12/12/2013, 00:15

... can be provided by selecting various first stage ratios. …Epicyclic gear reduction ●Crankshafts driven by the spur gears cause an eccentric motion of two epicyclic gears called RV gears that are ... shaft Bolt/pin clamping output shaft B ● ● P 69 INSTALLATION AND ASSEMBLY 7 7-1 Assembly accuracy To get maximum performance from RV-C reduction gears, it is important to pay attention to the as...

Ngày tải lên: 13/12/2013, 13:15

... candidates. 18 ○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○ Chapter 8 Next, we’ll know focus our attention on performance management methods that you can use to control traffic and queuing. Performance Management Cisco IOS enables you to control ... examples of using access lists. 1 ○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○ 8 Security and Performance Management Terms you’ll need to u...

Ngày tải lên: 21/12/2013, 19:15

... SMI Betsy@software-metrics.com Brad Clark, SMI Brad@software-metrics.com (703) 754-0115 smi Software Metrics, Inc. Measuring Customer Satisfaction and Perceptions Eighth Annual PSM Users’ Group Conference Keystone, ... an important measurement instrument We are using surveys to identify relevant organizational performance measures based on survey results  What product and service chara...

Ngày tải lên: 22/12/2013, 02:17

... Accuracy 7 6 5 4 3 2 1Response Time 7 6 5 4 3 2 1Availability smi Software Metrics, Inc. Measuring Customer Satisfaction and Perceptions Eighth Annual PSM Users’ Group Conference Keystone, ... an important measurement instrument We are using surveys to identify relevant organizational performance measures based on survey results  What product and service characteristics a...

Ngày tải lên: 15/01/2014, 15:59

... three discussed methods for measuring customer satisfaction. TABLE 1 – Common methods for measuring customer satisfaction and their key characteristics Methods for measuring customer satisfaction ... customer expectations and the performance of the organization’s offerings (see e.g. Parasuraman et al., 1985 & 1988 & 1991). Another stream of research is the perform...

Ngày tải lên: 15/01/2014, 15:59

... Lab 5.4.2: Hard Drive Preparation Using FDISK and FORMAT Estimated time: 30 Minutes Objective Upon completion of this lab, the student will be able to partition the hard drive. The student ... drive. The student will also be able to install the three system files onto the hard drive to make it a bootable drive. Note: This procedure will erase any current information on the la...

Ngày tải lên: 18/01/2014, 05:20

... on a set of disks, the performance of the I/O subsystem is very important to the performance of the database. Most operating systems provide extensive statistics on disk performance. The most ... For Windows NT/2000, use the Performance Monitor tool. Overview of Data Gathering 5-8 Oracle Database Performance Tuning Guide Interpreting Statistics When initially examining performance...

Ngày tải lên: 24/01/2014, 08:20