| |||||||||||||
The story repeats itselfThe story repeats itselfPosted Sep 19, 2007 17:38 UTC (Wed) by khim (subscriber, #9252)In reply to: The story repeats itself by proski 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...
(Log in to post comments)
The story repeats itself Posted Sep 19, 2007 22:44 UTC (Wed) by proski (subscriber, #104) [Link] I don't see any references to Windows in the story.
The story repeats itself
Oops Posted Sep 20, 2007 21:09 UTC (Thu) by khim (subscriber, #9252) [Link] Perils of editing. Initially I wanted so say that only "Core 2" is 64bit while Pentium 4 (except latest models of Prescott), Pentium 3 and so on are 32bit. Phrase was too cumbersome and I've removed everything but the "only" word was left after editing...
|
|||||||||||||