Aleksey Bragin d136b969cf - Rewrite NtRead/WriteVirtualMemory around MiCopyVirtualMemory, and use MmMapLockedPagesSpecifyCache to do the bulk of the work, instead of the MDL hacks that were previously used.
- Reformat and cleanup the entire file, deprecate NtVirtualLock/Unlock which didn't really work (and aren't really required for any apps for now)
- Major perf optimizations to NtRead/VirtualMemory: Use pool memory transfer when more efficient than MDL, and use local stack buffer when size permits.
- This patch provides up to 109% improvement (more than twice as fast) in certain virtual memory operations.
- Thanks to Alex for researching this issue, and providing the internal information on the various optimizations and behaviors the NT implementation uses.

svn path=/trunk/; revision=33133
2008-04-24 21:26:01 +00:00
2008-03-08 11:08:52 +00:00
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