The story repeats itself
Posted Sep 19, 2007 17:38 UTC (Wed) by khim
In reply to: The story repeats itself
Parent article: Large pages, large blocks, and large problems
Core 2 is 64bit only, but people needed 16GiB of RAM years ago when x86-compatible 64bit CPUs were just a project. Thus PAE support was added to Linux.
The same - with TLB today: may be someday we'll have the truly balanced architecture but today - we don't. Add it's not clear if we'll have balanced architecture tomorrow: TLB must be fast (or else it's useless) but it's hard to create large and fast cache. Of course it's possible to use 2-level TLB (like AMD does today), but it's not some minor modification - it's possible that we'll be forced to wait few years till the new Intel's design. And all these years Linux will be worse then Windows... not a good position...
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