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3GHz的单周期SSE3 遮遮掩掩不肯直说
不过我早说过，一个顺序执行的核心，有了快的SIMD处理速率也发挥不了，因为指令发射和内存访问是瓶颈
这也就是为什么Isaiah(C8？)处理器要引入乱序Tomasulo结构的原因。VIA的cache本来就强，32-way的，指令发射这一环上再做好，Isaiah处理器性能赶超P4估计是没问题的。
Isaiah是个怪胎。>20级的流水线，高高的频率，快速SIMD，但IPC仍然低于PIII，这个嵌入式处理器到底是面向什么应用的呢？
还有可以动态地调整指令发射方式（顺序、乱序），功耗原因？如果一个处理器流水线长度>20级, 却是顺序发射，它到底是要拼什么嵌入式应用，请大家评论一下。
我估计最可能的是UMPC。但UMPC上用那么高的频率做什么？难道不会导致高功耗吗？
Q22: Beyond security, are other cool features planned?
A22:The next chip has some tools to do computationally intensive thingswhere hardware provides a big advantage. But I don't want to say yetwhat they are.
Q23: Would they be useful for multimedia?
Yes, for multimedia, and for other things.
Q24: Like a DSP?
A24: Kind of like that.
Q25:Okay, we won't push. We appreciate you taking the time to speak withus. We can't imagine getting the president of AMD or Intel to do this.
A25:Our whole strategy is so close to the, if you will, the fate of Linux.We identify so much with it. We're low-cost, aimed at the commonperson, we're aimed at new applications, and we don't have any massivePR or marketing or sales budget, so. Actually, I have a specialsoftness in my heart for Linux. I think without Linux our businesswould be much less than what it is today. It's just very important tous, so, I wanted to give you guys the time. |
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发表于 2007-6-16 10:08
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