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Large pages, large blocks, and large problemsLarge pages, large blocks, and large problemsPosted Sep 20, 2007 0:52 UTC (Thu) by sayler (guest, #3164)In reply to: Large pages, large blocks, and large problems by avik Parent article: Large pages, large blocks, and large problems
Yes, *but* you have a commensurate increase in the cost (in silicon area, latency, validation) to support large-page-TLB entries. IIRC (from the above RWT thread) modern Intel processors support only 2 TLB entries for large pages!
In other words, you may lose some performance by going to large pages because of resource constraints.
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Large pages, large blocks, and large problems Posted Sep 20, 2007 5:51 UTC (Thu) by avik (guest, #704) [Link] I'm talking about current hardware, not proposing changes to hardware.
The workload I described will gain a 2X boost from using large pages
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