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Comment Re:Controlling for... (Score 1) 427

Men aren't offered exciting projects, overtime, etc.; they actively pursue it. In the book "Ask For It: How Women Can Use the Power of Negotiation to Get What They Really Want" on Page 2, Linda Babcock describes exactly this scenario. All the male colleagues get the good jobs and the women get the less exciting roles. Upon inquiring why this was so, she was informed that the women simply never asked!

Link to the book: http://www.amazon.com/Ask-For-...

Comment Re:Eh? (Score 1) 262

This is not about saving RAM, but improving cache utilization. It's not that hard to simply roughly double the existing cache by reducing the size of pointers. As caching is THE most performance improving optimization available on CPUs, this has profound improvements on run times. x32 can still support systems with many, many GBs, but each individual process space is limited to 4 GB.

Comment Re:Subject (Score 1) 262

then you need two copies of every shared library that they use to be mapped at the same time.

No, you don't. The libraries will be paged in on-demand. If you never use more than 4 GB address space within a single program, the amd64 libraries will never be paged in. Typically, I-cache lines will be driven by LRU, so you'll have them filled also on a on-demand basis.

Comment Re:Eh? (Score 1) 262

That's a pretty ignorant stance. Your PPro didn't have the expressive abilities of the newer registers, instructions, and enhanced SIMD systems, let alone the performance improvements.

Comment Re:Subject (Score 1) 262

As you suggest, pretty much everyone has enough RAM to run just about any normal application with 64-bit pointers.

Most users will never need 64-bit pointers. Only applications which require more than 4 GB of addressable memory within that single program will ever use this. Examples of such applications include in-core scientific computing and very large media file editing.

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