> If the reason for not setting a larger readahead value is just that it
> might increase memory pressure and thus decrease performance, is it
> possible to use a suitable metric from the VM in order to set the value
> automatically according to circumstances?
>
How about tracking heuristics for 'read-hits from previous read-aheads'? If the hits are in acceptable range(user-configurable knob?) then keep seeking else back-off a little on the read-ahead?
> Steve.
Chetan Loke
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