May 30, 2012
4:51 a.m.
What I meant here is, there must be difference speed when you copy onto something contigous vs non contigous. IIRC at least it will waste some portion of L1/L2 cache.
When you say, LKM area is prepared with vmalloc is it for code / executable you refering too ? if so will it matter for data copy ? Point # 2. Some one was saying that on atleast MIPS it takes more cycle to call kernel main function from module because of log jump. Does it apply to x86_64 to ? To teat above two should I make my module part of static kernel ?