IPP 可以在 Windows Azure 上运行吗？
假设使用 IPP（英特尔性能基元）编译本机 dll，并使用托管包装器将其部署到 Azure，是否可以实现 IPP 的性能提升？
Supposing one were to compile a native dll using IPP (Intel Performance Primitives), and deploy it to Azure using a managed wrapper, would the performance gains from IPP be realized?
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我不会指望它。我知道至少部分（如果不是全部）Windows Azure 物理机使用了 AMD Opterons。一些实际的机器可能是基于 Intel 的，但您无法控制选择 CPU 品牌。
编辑：当我说“我不会指望它”时，我的意思似乎有点混乱。从本质上讲，这个问题可以归结为：“当我无法控制运行的硬件时，我可以指望在峰值时执行特定的硬件优化吗？”。这样提出问题，答案显然是否定的。
请注意，此答案并不是说 IPP 不起作用或建议您不要使用 IPP。它只是指出您不应该指望它工作，或者即使它工作，也不能指望它以最佳性能工作。
即使我现在确信 IPP（或任何优化）在 Windows Azure 中有效，我的答案仍然是一样的：不要指望它。微软肯定不会购买 3 年前构建平台时购买的相同服务器 SKU，而且平台本身可能会随着时间的推移而发生变化。因此，即使某些东西今天运行得很好，也不能保证在硬件再次发生变化时它会继续以同样的方式运行。至少在他们允许您指定最低硬件 SKU 之前不能保证。
I would not count on it. I know that AMD Opterons are used in at least some (if not all) of the Windows Azure physical machines. Some actual machines might be Intel based, but you have no control over choosing the CPU make.
EDIT: There seems to be a bit of confusion here about what I mean when I say "I would not count on it". Essentially this question boils down to, "Can I count on specific hardware optimizations performing at peak when I cannot control the hardware it runs on?". Putting the question like that it should be obvious the answer is no.
Note, this answer does not say that IPP will NOT work or advise you not to use IPP. It simply states you should not count on it working or even if it works, working at peak performance.
Even if I knew for certainty that IPP (or any optimization) worked in Windows Azure today, my answer is still the same: do not count on it. Microsoft is certainly not buying the same server SKUs it purchased 3 years ago when building the platform and the platform itself is likely to change over time. So, even if something worked great today, there really is no guarantee that it will continue to work the same way should hardware change yet again. At least no guarantee until they allow you to specify minimum hardware SKUs.