how to generate and scan barcode in asp.net using c# 10: Troubleshoot Reliability and Performance Issues in Software

Printer Code 3/9 in Software 10: Troubleshoot Reliability and Performance Issues

10: Troubleshoot Reliability and Performance Issues
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Advanced Tab If you click the Advanced tab, you can also manage a few additional memory and processor settings, shown in Figure 10-13 First, Windows Vista is set to provide more processor cycles to applications than to Windows Vista background processes As a general rule, you should keep this setting to ensure that performance
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If I use a Custom configuration on the Visual Effects tab, which settings have the most system performance impact What does Windows Vista do when the Adjust for performance option is used Any settings that have animated features, such as shading, tend to have an impact on performance You can also clear the Use visual styles on windows and buttons option to help reduce some of the visual hits When this option is used, the system will look more like Windows XP You ll lose the basic Vista interface appearance
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is optimized for applications, but you can change it so that the processor is used more efficiently for background services by simply clicking the radio button You also see the Page File (Virtual Memory) Change button If you click Change, you see the Virtual Memory window, shown in Figure 10-14 Virtual memory allows Windows Vista to use a portion of the computer s hard disk as a memory storage area As data is loaded into memory and memory becomes low, pages of data are written to the hard disk and recalled as they are needed This feature allows Windows Vista to keep more frequently accessed information readily accessible in physical memory, even when physical memory begins to run low As you can see, Windows Vista is set to manage its own virtual memory settings, and it does a good job of this However, you can manually input minimum and maximum sizes for the page file, if you like The commonly recommended amount is 15 times the amount of physical RAM installed on the computer So, if you have 1GB of RAM, the recommended initial paging file size is 15GB
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10: Troubleshoot Reliability and Performance Issues
FIGURE 10-14
Virtual Memory
Another good piece of advice is to move the page file off of the drive that holds the system and boot partitions In this case, you need a second physical disk, but you tend to get better performance this way It is important to note here, however, that Windows Vista does a good job of managing its own memory settings, and as a general rule, you should allow Windows Vista to handle those settings on its own Incorrectly setting the virtual memory or choosing the No paging file setting option is likely to have adverse effects on system performance Also, providing more paging file room is not a replacement for physical RAM If the computer is running too slowly because there is not enough physical RAM installed on the system, then the paging file will not provide a cheap solution In short, the paging file is used to help Windows Vista s physical memory not replace it
Windows ReadyBoost
Windows ReadyBoost is a new feature in Windows Vista that is designed to help speed up your computer Since ReadyBoost is a new feature, you re likely to see an exam question or two on this topic alone Fortunately, it is simple and straightforward, but you need to remember everything in this section to be ready for the exam
Troubleshoot Performance Issues
Windows ReadyBoost enables your computer to use removable storage space, such as USB flash drives, to speed up your computer Essentially, the USB flash drive works as additional flash memory for the system so that some data in memory can be written to the flash drive for use This frees up memory in RAM; however, it is not a replacement for the page file However, flash drives often contain both fast and slow flash memory, and Windows Vista can only use the fast flash memory to speed up the computer If you have a flash drive with a certain amount of storage space, but Windows Vista is only using a portion of it, then this is likely the reason Microsoft recommends that the amount of memory used for ReadyBoost be one to three times the amount of RAM installed in the computer For example, if your computer has 1GB of RAM and you use a 4GB flash drive, you can set aside 1GB to 3GB of RAM for ReadyBoost with the best performance In order to use ReadyBoost, simply plug your USB flash drive into a USB port on the computer The AutoPlay dialog box will appear and offer you the option to speed up your system using Windows ReadyBoost Simply select the option on the AutoPlay dialog box to use the feature If AutoPlay is not enabled, right-click the drive in Explorer and select Properties Then, go to the ReadyBoost tab and manually configure the settings
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