Matthew Hawkins wrote:
On 7/25/07, Nick Piggin <[email protected]> wrote:
Not to say that neither fix some problems, but for such conceptually
big changes, it should take a little more effort than a constructed test
case and no consideration of the alternatives to get it merged.
Swap Prefetch has existed since September 5, 2005. Please Nick,
enlighten us all with your "alternatives" which have been offered (in
practical, not theoretical form) in the past 23 months, along with
their non-constructed benchmarks proving their case and the hordes of
happy users and kernel developers who have tested them out the wazoo
and given their backing. Or just take a nice steaming jug of STFU.
The alternatives comment was in relation to the readahead based drop
behind patch,for which an alternative would be improving use-once,
possibly in the way I described.
As for swap prefetch, I don't know, I'm not in charge of it being
merged or not merged. I do know some people have reported that their
updatedb problem gets much better with swap prefetch turned on, and
I am trying to work on that too.
For you? You also have the alternative to help improve things yourself,
and you can modify your own kernel.
--
SUSE Labs, Novell Inc.
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