Messages in this thread | | | Date | Sat, 22 Jan 2005 03:03:35 +0100 | From | Andi Kleen <> | Subject | Re: [PATCH][RFC] swsusp: speed up image restoring on x86-64 |
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> With this patch, at least 8 times less memory accesses are required to restore an image > than without it, and in the original code cr3 is reloaded after copying each _byte_, > let alone the SIB arithmetics. I'd expect it to be 10 times faster or so.
Probably more. CR3 reload is a serializing operation and is really expensive.
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