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微软公布 Spectre 和 Meltdown CPU 漏洞修复补丁性能影响

· Picturepan2

过去一周里，微软为所有涉及 Spectre 和 Meltdown CPU 安全漏洞发布了紧急修复补丁，考虑到会有不同的性能影响，微软公布了补丁前后的性能对比初步结果。

对于消费者用户来说，Windows 10 新 PC 没有明显性能影响，Windows 7、8 时代的 PC 会有明显性能影响（主要是 Haswell 及更旧版本）。

  • Windows 10 在新处理器（Skylake、Kabylake 以及更新 CPU）性能只有 % 个位数下降，影响毫秒级别，大部分用户感知不到。
  • Windows 10 在旧处理器（Haswell 以及更老 CPU）性能会有显著下降，一些用户会注意到系统性能下降。
  • Windows 7 和 Windows 8 在旧处理器（Haswell 以及更老 CPU），大部分用户会注意到系统性能显著下降。

微软表示在旧版系统和处理器上的显著性能下降是由于一些“遗留的设计决定，比如所有字体渲染都在内核中进行”，微软也会在接下来几周里发布具体的性能跑分数据。

来源：Understanding the performance impact of Spectre and Meltdown mitigations on Windows Systems

直达：微软中国官方商城 - 购买 Surface、Xbox 和配件促销

CPUIntelSecurityWindowsWindows 10Windows 7Windows 8Windows Update
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