On Fri, Feb 01, 2002 at 09:06:37AM -0800, Linus Torvalds wrote:
> Even databases often use multiple files, and quite frankly, a database
> that doesn't use mmap and doesn't try very hard to not cause extra system
> calls is going to be bad performance-wise _regardless_ of any page cache
> locking.
I've always thought that read(2) and write(2) would in the end wind up
faster than mmap(2)... Tests in my rewritten cp/rm/mv type utilities
seem to bear this out.
Is mmap(2) only preferred for large files/databases?
Jeff
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