In message <[EMAIL PROTECTED]>,Andreas Dilger writes:
>For random reads the code does understand the difference between e.g.
>reads of 16 sequential pages (64kB generally) read at non-consecutive
>offsets and 16 sequential 4kB page reads.  The former will NOT start
>readahead, while the latter does.

what about direct i/o?  it looks like doing direct i/o to a file
will never trigger readahead.  is this intentional?

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