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在运行 Windows 7 或 Windows Server 2008 R2 操作系统的计算机上使用 DirectWrite API 的应用程序的性能会下降

症状
在运行 Windows 7 或 Windows Server 2008 R2 的计算机上,可能会遇到以下问题:运行使用了 DirectWrite API 的应用程序(如 Windows Internet Explorer 9)时,系统性能下降。性能跟踪结果显示:每个应用程序都在加载所有可用的字体,而不是依靠 FontCache 服务来呈现字体。

原因
发生此问题是因为,如果 FontCache 服务响应时间过长,则 DirectWrite API 会直接从字体文件读取字体信息,并对这些字体进行直接缓存。

有关标题栏的更多信息,请访问以下 Microsoft Developer Network (MSDN) 网站:
更多信息

已知问题

重要事项 当您完成 KB2505438 的安装后,通过 DirectWrite 呈现文本的应用程序可能会遇到错误,其中包括应用程序崩溃。这可能是由于修补程序包不包含更新版本的其他驱动程序。KB2454826 中描述的修补程序包包含此驱动程序的更新版本。

若要解决此问题,请在计算机上安装 Windows 7 Service Pack 1 (SP1) 或 KB2454826。有关如何安装 KB2454826 的更多信息,请单击下面的文章编号,以查看 Microsoft 知识库中相应的文章:
2454826 已推出针对 Windows 7 和 Windows Server 2008 R2 的性能更新和功能更新
有关 Windows 7 SP1 的更多信息,请访问下面的 Microsoft 网站:

更新信息

如何获取此更新

可以从 Microsoft 下载中心下载以下文件:
操作系统更新
所有受支持的基于 x86 的 Windows 7 版本下载立即下载更新包。
所有受支持的基于 x64 的 Windows 7 版本下载立即下载更新包。
所有受支持的基于 x64 的 Windows Server 2008 R2 版本下载立即下载更新包。
所有受支持的基于 x86 的 Windows Embedded Standard 7 版本下载立即下载更新包。
所有受支持的基于 x64 的 Windows Embedded Standard 7 版本下载立即下载更新包。
所有受支持的基于 IA-64 的 Windows Server 2008 R2 版本下载立即下载更新包。
有关如何下载 Microsoft 支持文件的详细信息,请单击下面的文章编号,以查看 Microsoft 知识库中相应的文章:
119591 如何从联机服务获取 Microsoft 支持文件
Microsoft 已对该文件进行了病毒扫描。Microsoft 使用的是该文件发布时可以获得的最新病毒检测软件。该文件存储在安全性得到增强的服务器上,以防止在未经授权的情况下对其进行更改。

先决条件

要应用此更新,计算机必须运行下列操作系统之一:
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
有关如何获取 Windows 7 或 Windows Server 2008 R2 Service Pack 的详细信息,请单击下面的文章编号,以查看 Microsoft 知识库中相应的文章:
976932有关 Windows 7 Service Pack 1 和 Windows Server 2008 R2 Service Pack 1 的信息

注册表信息

若要使用此程序包中的更新,您不必对注册表进行任何更改。

重新启动要求

应用此更新后,必须重新启动计算机。

更新替换信息

此更新不替代以前发布的更新。

文件信息

此修补程序的全球版本将安装具有下表所列属性的文件。这些文件的日期和时间使用协调世界时 (UTC) 列出。这些文件在您的本地计算机上显示的日期和时间是您的本地时间再加上当前夏令时 (DST) 偏差。此外,如果对这些文件执行某些操作,日期和时间可能会更改。
Windows 7 和 Windows Server 2008 R2 文件信息说明
  • 通过检查在下表中显示的文件版本号,可以识别应用于特定产品、里程碑(RTM、SPn)和服务分支(LDR、GDR)的文件:
    版本产品里程碑服务分支
    6.1.760 0.16xxxWindows 7 和 Windows Server 2008 R2RTMGDR
    6.1.760 0.20xxxWindows 7 和 Windows Server 2008 R2RTMLDR
    6.1.760 1.17xxxWindows 7 和 Windows Server 2008 R2SP1GDR
    6.1.760 1.21xxxWindows 7 和 Windows Server 2008 R2SP1LDR
  • GDR 服务分支仅包含那些广泛发布以解决广泛分布的至关重要问题的修补程序。LDR 服务分支包含除了广泛发布的修补程序以外的其他修补程序。
  • 为每个环境安装的 MANIFEST 文件 (.manifest) 和 MUM 文件 (.mum) 单独列出在“Windows Server 2008 R2 和 Windows 7 其他文件信息”部分中。MUM 和 MANIFEST 文件以及关联的安全目录 (.cat) 文件对于维护更新组件的状态至关重要。未列出属性的安全目录文件签有 Microsoft 数字签名。
对于所有受支持的基于 x86 的 Windows 7 版本
File nameFile versionFile sizeDateTimePlatform
D2d1.dll6.1.7600.16763739,84019-Feb-201105:32x86
D2d1.dll6.1.7600.20905739,84019-Feb-201105:56x86
D2d1.dll6.1.7601.17563739,84019-Feb-201106:30x86
D2d1.dll6.1.7601.21664739,84019-Feb-201105:21x86
Fntcache.dll6.1.7600.16763802,30419-Feb-201105:33x86
Fntcache.dll6.1.7600.20905805,37619-Feb-201105:56x86
Fntcache.dll6.1.7601.17563805,37619-Feb-201106:30x86
Fntcache.dll6.1.7601.21664805,37619-Feb-201105:22x86
Dwrite.dll6.1.7600.167631,074,17619-Feb-201105:32x86
Dwrite.dll6.1.7600.209051,076,73619-Feb-201105:56x86
Dwrite.dll6.1.7601.175631,076,73619-Feb-201106:30x86
Dwrite.dll6.1.7601.216641,076,73619-Feb-201105:22x86
对于所有受支持的基于 x64 的 Windows 7 和 Windows Server 2008 R2 版本
File nameFile versionFile sizeDateTimePlatform
D2d1.dll6.1.7600.16763902,65619-Feb-201106:36x64
D2d1.dll6.1.7600.20905902,65619-Feb-201106:42x64
D2d1.dll6.1.7601.17563902,65619-Feb-201112:04x64
D2d1.dll6.1.7601.21664902,65619-Feb-201106:14x64
Fntcache.dll6.1.7600.167631,135,10419-Feb-201106:37x64
Fntcache.dll6.1.7600.209051,139,20019-Feb-201106:43x64
Fntcache.dll6.1.7601.175631,139,20019-Feb-201112:05x64
Fntcache.dll6.1.7601.216641,139,20019-Feb-201106:15x64
Dwrite.dll6.1.7600.167631,540,60819-Feb-201106:37x64
Dwrite.dll6.1.7600.209051,544,19219-Feb-201106:42x64
Dwrite.dll6.1.7601.175631,544,19219-Feb-201112:04x64
Dwrite.dll6.1.7601.216641,544,19219-Feb-201106:15x64
D2d1.dll6.1.7600.16763739,84019-Feb-201105:32x86
D2d1.dll6.1.7600.20905739,84019-Feb-201105:56x86
D2d1.dll6.1.7601.17563739,84019-Feb-201106:30x86
D2d1.dll6.1.7601.21664739,84019-Feb-201105:21x86
Dwrite.dll6.1.7600.167631,074,17619-Feb-201105:32x86
Dwrite.dll6.1.7600.209051,076,73619-Feb-201105:56x86
Dwrite.dll6.1.7601.175631,076,73619-Feb-201106:30x86
Dwrite.dll6.1.7601.216641,076,73619-Feb-201105:22x86
对于所有受支持的基于 IA-64 的 Windows Server 2008 R2 版本
File nameFile versionFile sizeDateTimePlatform
D2d1.dll6.1.7600.167631,880,57619-Feb-201105:20IA-64
D2d1.dll6.1.7600.209051,880,57619-Feb-201105:13IA-64
Fntcache.dll6.1.7600.167632,280,96019-Feb-201105:21IA-64
Fntcache.dll6.1.7600.209052,291,20019-Feb-201105:14IA-64
Fntcache.dll6.1.7601.175632,290,68819-Feb-201105:57IA-64
Fntcache.dll6.1.7601.216642,291,20019-Feb-201105:15IA-64
Dwrite.dll6.1.7600.167632,999,80819-Feb-201105:20IA-64
Dwrite.dll6.1.7600.209053,009,53619-Feb-201105:14IA-64
Dwrite.dll6.1.7601.175633,009,53619-Feb-201105:57IA-64
Dwrite.dll6.1.7601.216643,009,53619-Feb-201105:15IA-64
D2d1.dll6.1.7600.16763739,84019-Feb-201105:32x86
D2d1.dll6.1.7600.20905739,84019-Feb-201105:56x86
Dwrite.dll6.1.7600.167631,074,17619-Feb-201105:32x86
Dwrite.dll6.1.7600.209051,076,73619-Feb-201105:56x86
Dwrite.dll6.1.7601.175631,076,73619-Feb-201106:30x86
Dwrite.dll6.1.7601.216641,076,73619-Feb-201105:22x86
有关软件更新术语的更多信息,请单击下面的文章编号,以查看 Microsoft 知识库中相应的文章:
824684有关用于描述 Microsoft 软件更新标准术语的介绍
FontCache 服务可为计算机上的每个用户管理系统缓存和每个用户的缓存。计算机重新启动后,DirectWrite API 会在 FontChe 服务加载系统缓存时等待两秒钟。通常情况下,系统缓存的大小为 400 到 600 千字节 (KB)。客户端进程第一次加载 DirectWrite API 时,DirectWrite API 会在 FontCache 服务加载每个用户的缓存时等待半秒钟。

如果应用 DirectWrite API 的客户端应用程序(如 Internet Explorer 9)在计算机启动后立即启动,则这两个超时值的其中之一可能会因 Windows 正在执行多个其他竞争性 I/O 操作而到期。例如,Internet Explorer 9 启动时,FontCache 服务需要 30 秒来加载每个用户的缓存。这种情况下,DirectWrite API 会直接读取字体,而不会去访问共享的字体缓存。这会导致 Internet Explorer 9 首次启动时速度变慢。而且,由于 DirectWrite API 对位于 Iexplorer.exe 进程中的内存空间的字体进行了缓存,Internet Explorer 9 的工作集会显著增加。

其他文件信息

Windows 7 和 Windows Server 2008 R2 的其他文件信息

所有受支持的基于 x86 的 Windows 7 版本的其他文件
File nameUpdate.mum
File versionNot applicable
File size2,315
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameX86_36cfcf1aeff3ce0b498eb84c0478e78d_31bf3856ad364e35_6.1.7601.17563_none_1dcff6f2f09d1c73.manifest
File versionNot applicable
File size709
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameX86_402e27a5235b68846818ec945c7be1a6_31bf3856ad364e35_6.1.7600.16763_none_b4312fc0db4f3802.manifest
File versionNot applicable
File size699
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameX86_5a8378e94add739457c9725a73cf1952_31bf3856ad364e35_6.1.7601.21664_none_3460058476518e0a.manifest
File versionNot applicable
File size691
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameX86_5ee627b491e1beadffcdd9a78358e05a_31bf3856ad364e35_6.1.7601.21664_none_b1115ea4714b8e30.manifest
File versionNot applicable
File size709
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameX86_9861a3c4560edf7592c68694ef55a0cd_31bf3856ad364e35_6.1.7600.20905_none_a25c60ded5f659a0.manifest
File versionNot applicable
File size691
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameX86_9e99407384b00f4b36e8fedd79be9e51_31bf3856ad364e35_6.1.7600.20905_none_c5d830378785c813.manifest
File versionNot applicable
File size709
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameX86_a25e8b0fb1efa0bfb5b1f081de893c04_31bf3856ad364e35_6.1.7601.21664_none_9d06adad208a9792.manifest
File versionNot applicable
File size699
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameX86_a554d259c50cc61ded067bc5848c118b_31bf3856ad364e35_6.1.7600.20905_none_f6c2196af657856c.manifest
File versionNot applicable
File size699
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameX86_d4c7eef0de60973511cef2af4bb3a205_31bf3856ad364e35_6.1.7601.17563_none_958b5574f8cdbe35.manifest
File versionNot applicable
File size691
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameX86_e85b430b16eeb232f11d97b8307e5cfe_31bf3856ad364e35_6.1.7600.16763_none_2d5bf149a325136b.manifest
File versionNot applicable
File size691
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameX86_ef7cbda104f1c456aade854123482738_31bf3856ad364e35_6.1.7600.16763_none_0889e418a4942a56.manifest
File versionNot applicable
File size709
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameX86_f4b8dd25c8997b4edbdb29c2cacbb2ff_31bf3856ad364e35_6.1.7601.17563_none_4c4b47c6f8333b27.manifest
File versionNot applicable
File size699
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameX86_microsoft-windows-d2d_31bf3856ad364e35_6.1.7600.16763_none_a786e3c3bd3618af.manifest
File versionNot applicable
File size1,986
Date (UTC)19-Feb-2011
Time (UTC)06:10
PlatformNot applicable
File nameX86_microsoft-windows-d2d_31bf3856ad364e35_6.1.7600.20905_none_a8536290d62140a8.manifest
File versionNot applicable
File size1,986
Date (UTC)19-Feb-2011
Time (UTC)06:33
PlatformNot applicable
File nameX86_microsoft-windows-d2d_31bf3856ad364e35_6.1.7601.17563_none_a96d40c9ba5c849b.manifest
File versionNot applicable
File size1,986
Date (UTC)19-Feb-2011
Time (UTC)07:02
PlatformNot applicable
File nameX86_microsoft-windows-d2d_31bf3856ad364e35_6.1.7601.21664_none_a9f7ddded3793dbc.manifest
File versionNot applicable
File size1,986
Date (UTC)19-Feb-2011
Time (UTC)05:49
PlatformNot applicable
File nameX86_microsoft-windows-directwrite-fontcache_31bf3856ad364e35_6.1.7600.16763_none_04940b4b72945499.manifest
File versionNot applicable
File size10,819
Date (UTC)19-Feb-2011
Time (UTC)06:10
PlatformNot applicable
File nameX86_microsoft-windows-directwrite-fontcache_31bf3856ad364e35_6.1.7600.20905_none_05608a188b7f7c92.manifest
File versionNot applicable
File size10,819
Date (UTC)19-Feb-2011
Time (UTC)06:33
PlatformNot applicable
File nameX86_microsoft-windows-directwrite-fontcache_31bf3856ad364e35_6.1.7601.17563_none_067a68516fbac085.manifest
File versionNot applicable
File size10,819
Date (UTC)19-Feb-2011
Time (UTC)07:01
PlatformNot applicable
File nameX86_microsoft-windows-directwrite-fontcache_31bf3856ad364e35_6.1.7601.21664_none_0705056688d779a6.manifest
File versionNot applicable
File size10,819
Date (UTC)19-Feb-2011
Time (UTC)05:49
PlatformNot applicable
File nameX86_microsoft-windows-directwrite_31bf3856ad364e35_6.1.7600.16763_none_d2876c2160b42f31.manifest
File versionNot applicable
File size2,106
Date (UTC)19-Feb-2011
Time (UTC)06:08
PlatformNot applicable
File nameX86_microsoft-windows-directwrite_31bf3856ad364e35_6.1.7600.20905_none_d353eaee799f572a.manifest
File versionNot applicable
File size2,106
Date (UTC)19-Feb-2011
Time (UTC)06:31
PlatformNot applicable
File nameX86_microsoft-windows-directwrite_31bf3856ad364e35_6.1.7601.17563_none_d46dc9275dda9b1d.manifest
File versionNot applicable
File size2,106
Date (UTC)19-Feb-2011
Time (UTC)07:07
PlatformNot applicable
File nameX86_microsoft-windows-directwrite_31bf3856ad364e35_6.1.7601.21664_none_d4f8663c76f7543e.manifest
File versionNot applicable
File size2,106
Date (UTC)19-Feb-2011
Time (UTC)05:55
PlatformNot applicable
所有受支持的基于 x64 的 Windows 7 和 Windows Server 2008 R2 版本的其他文件
File nameAmd64_0c99e4b0f02af07428bc0e999954b3cf_31bf3856ad364e35_6.1.7600.16763_none_c4f0d244f49a17d1.manifest
File versionNot applicable
File size713
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameAmd64_12f82e27d7c25591ddec040d4c55419f_31bf3856ad364e35_6.1.7601.21664_none_623c9fd6b2611bc3.manifest
File versionNot applicable
File size1,030
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameAmd64_1e3126834aba635138fdcc2f2ed9ed02_31bf3856ad364e35_6.1.7600.20905_none_c77baa6892bae6eb.manifest
File versionNot applicable
File size713
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameAmd64_46c86432938085b098b0af8545dd5351_31bf3856ad364e35_6.1.7601.21664_none_5fb2d4eb1dd182d0.manifest
File versionNot applicable
File size713
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameAmd64_4f2f0ff7c34a04b1eba87d2c90c0b361_31bf3856ad364e35_6.1.7600.16763_none_458468824ea46827.manifest
File versionNot applicable
File size1,046
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameAmd64_5087ddc84ce616468de02eefd3da056c_31bf3856ad364e35_6.1.7600.20905_none_64dd90086753a15c.manifest
File versionNot applicable
File size1,030
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameAmd64_5722c015620ac58453d411b813abbf15_31bf3856ad364e35_6.1.7601.17563_none_9e15f19ae3a6b79f.manifest
File versionNot applicable
File size1,046
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameAmd64_672002716948787618ba82ff12b363f2_31bf3856ad364e35_6.1.7601.21664_none_a948b786583387a4.manifest
File versionNot applicable
File size1,046
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameAmd64_b539b0abf62a7404667c800cdd4c2f36_31bf3856ad364e35_6.1.7600.20905_none_6f0a07f8cb13581e.manifest
File versionNot applicable
File size1,046
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameAmd64_dfa74655acf8269c56080f2642a8ba39_31bf3856ad364e35_6.1.7601.17563_none_14126d2cb6bdbe37.manifest
File versionNot applicable
File size1,030
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameAmd64_e0614fbe0da99aa2ee74f99004d6499d_31bf3856ad364e35_6.1.7601.17563_none_41ce2f78f2815cad.manifest
File versionNot applicable
File size713
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameAmd64_e374389c81c67cebbb6419abe8ef0d8f_31bf3856ad364e35_6.1.7600.16763_none_535f144e29ed0c70.manifest
File versionNot applicable
File size1,030
Date (UTC)22-Feb-2011
Time (UTC)11:24
PlatformNot applicable
File nameAmd64_microsoft-windows-d2d_31bf3856ad364e35_6.1.7600.16763_none_03a57f47759389e5.manifest
File versionNot applicable
File size1,988
Date (UTC)19-Feb-2011
Time (UTC)07:19
PlatformNot applicable
File nameAmd64_microsoft-windows-d2d_31bf3856ad364e35_6.1.7600.20905_none_0471fe148e7eb1de.manifest
File versionNot applicable
File size1,988
Date (UTC)19-Feb-2011
Time (UTC)07:23
PlatformNot applicable
File nameAmd64_microsoft-windows-d2d_31bf3856ad364e35_6.1.7601.17563_none_058bdc4d72b9f5d1.manifest
File versionNot applicable
File size1,988
Date (UTC)19-Feb-2011
Time (UTC)12:39
PlatformNot applicable
File nameAmd64_microsoft-windows-d2d_31bf3856ad364e35_6.1.7601.21664_none_061679628bd6aef2.manifest
File versionNot applicable
File size1,988
Date (UTC)19-Feb-2011
Time (UTC)06:58
PlatformNot applicable
File nameAmd64_microsoft-windows-directwrite-fontcache_31bf3856ad364e35_6.1.7600.16763_none_60b2a6cf2af1c5cf.manifest
File versionNot applicable
File size10,823
Date (UTC)19-Feb-2011
Time (UTC)07:19
PlatformNot applicable
File nameAmd64_microsoft-windows-directwrite-fontcache_31bf3856ad364e35_6.1.7600.20905_none_617f259c43dcedc8.manifest
File versionNot applicable
File size10,823
Date (UTC)19-Feb-2011
Time (UTC)07:23
PlatformNot applicable
File nameAmd64_microsoft-windows-directwrite-fontcache_31bf3856ad364e35_6.1.7601.17563_none_629903d5281831bb.manifest
File versionNot applicable
File size10,823
Date (UTC)19-Feb-2011
Time (UTC)12:39
PlatformNot applicable
File nameAmd64_microsoft-windows-directwrite-fontcache_31bf3856ad364e35_6.1.7601.21664_none_6323a0ea4134eadc.manifest
File versionNot applicable
File size10,823
Date (UTC)19-Feb-2011
Time (UTC)06:58
PlatformNot applicable
File nameAmd64_microsoft-windows-directwrite_31bf3856ad364e35_6.1.7600.16763_none_2ea607a51911a067.manifest
File versionNot applicable
File size2,110
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所有受支持的基于 IA-64 的 Windows Server 2008 R2 版本的其他文件
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DirectWrite times out waiting for FontCache service causing excessive font I/O for IE9 and other client processes
注意:本篇“快速发布”文章是从 Microsoft 支持组织直接创建的。 文中包含的信息按原样提供,用于响应紧急问题。 由于发布仓促,材料可能包含印刷错误,并且可能随时修订,恕不另行通知。 有关其他注意事项,请参阅使用条款
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文章 ID:2505438 - 上次审阅时间:02/15/2013 13:30:00 - 修订版本: 4.0

Windows 7 Enterprise, Windows 7 Home Basic, Windows 7 Home Premium, Windows 7 Professional, Windows 7 Starter, Windows 7 Ultimate, Windows Server 2008 R2 Datacenter, Windows Server 2008 R2 Enterprise, Windows Server 2008 R2 Foundation, Windows Server 2008 R2 Standard, Windows Web Server 2008 R2, Windows Server 2008 R2 for Itanium-Based Systems, Windows Embedded Standard 7

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