微软公布Vista SP1最终更新列表 效率有大幅提升


2008年3月19日 编辑:Vista之家 - robot 人气: 评论:0

Vista之家www.vista123.com):随着Windows Vista Service Pack 1的正式发布,我们也终于迎来了它长长的更新列表和发行信息,此前该文档已经更新了多次.

这份列表主要为承担部署业务的IT人员设计主要描述了一些部署Windows Vista Service Pack 1时的重要信息,包括一致的问题和安装软件的注意事项,如您在生产力环境中部署SP1,则必须仔细阅读该份文档.

 查看:Notable Changes in Windows Vista Service Pack 1
下载:Release Notes for Windows Vista Service Pack 1

以下摘录了Vista在系统资源和效率方面的改进。

Performance and Power Consumption Improvements

Performance improvements vary from PC to PC based on hardware, environment, scenarios, and usage, so different customers will experience varying levels of benefits. About 20-25% of these improvements will be released separately via Windows update, prior to Windows Vista SP1.

Improves the performance of browsing network file shares by consuming less bandwidth.

Improves power consumption when the display is not changing by allowing the processor to remain in its sleep state which consumes less energy.

Addresses the problem of the Video chipset (VSync interrupt) not allowing the system to stay asleep.

Improves power consumption and battery life by addressing an issue that causes a hard disk to continue spinning when it should spin down, in certain circumstances.

Improves the speed of adding and extracting files to and from a compressed (zipped) folder.

Significantly improves the speed of moving a directory with many files underneath.

Improves performance while copying files using BITS (Background Intelligent Transfer Service).

Improves performance over Windows Vista’s current performance across the following scenarios:

25% faster when copying files locally on the same disk on the same machine

45% faster when copying files from a remote non-Windows Vista system to a SP1 system

50% faster when copying files from a remote SP1 system to a local SP1 system

Improves responsiveness when doing many kinds of file or media manipulations. For example, with Windows Vista today, copying files after deleting a different set of files can make the copy operation take longer than needed. In SP1, the file copy time is the same as if no files were initially deleted.

Improves the copy progress estimation when copying files within Windows Explorer to about two seconds.

Improves the time to read large images by approximately 50%.

Improves IE performance on certain Jscript intensive websites, bringing performance in line with previous IE releases.

Addresses a problem that caused a delay of up to 5 minutes after boot with specific ReadyDrive capable hard drives.

Improves the effectiveness of a Windows ReadyBoost™ device in reducing the time to resume from standby and hibernate by increasing the amount of data stored in the ReadyBoost device that can be used during a resume cycle.

Includes improvements to Windows Superfetch™ that help to further improve resume times, in many environments.

In specific scenarios, SP1 reduces the shutdown time by a few seconds by improving the Windows Vista utility designed to sync a mobile device.

Improves the time to resume from standby for a certain class of USB Hubs by approximately 18%.

Improves network connection scenarios by updating the logic that auto selects which network interface to use (e.g., should a laptop use wireless or wired networking when both are available).

Improves the performance of the user login experience on corporate PCs outside of corporate environments (e.g., a corporate laptop taken home for the evening), making it comparable with PCs within the corporate environment.

Reduces the time it takes to return to the user’s session when using the Photo screensaver, making it comparable to other screensavers.

Removes the delay that sometimes occurs when a user unlocks their PC.

Improves overall media performance by reducing many glitches.

In SP1, PC administrators are able to modify the network throttling index value for the MMCSS (Multimedia Class Scheduling Service), allowing them to determine the appropriate balance between network performance and audio/video playback quality.

Windows Vista SP1 includes a new compression algorithm for the RDP (Remote Desktop Protocol) that helps reduce network bandwidth required to send bitmaps or images via RDP. The compression, which can be selected by administrators via Group Policy settings, is transparent to all RDP traffic, and typically reduces the size of the RDP stream by as much as 25-60%, based on preliminary test results.

The Windows Vista SP1 install process clears the user-specific data that is used by Windows to optimize performance, which may make the system feel less responsive immediately after install. As the customer uses their SP1 PC, the system will be retrained over the course of a few hours or days and will return to the previous level of responsiveness.

SP1 addresses a number of customer performance concerns with new print driver technologies, including XPS-based printing.

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