Messages in this thread | | | Subject | Re: Patch for block write clustering | From | Andi Kleen <> | Date | 06 Mar 1998 17:25:53 +0100 |
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Rik van Riel <H.H.vanRiel@fys.ruu.nl> writes:
> On 5 Mar 1998, Matthias Urlichs wrote: > > > Rik van Riel <H.H.vanRiel@fys.ruu.nl> writes: > > > Kswapd doesn't do: > > > - swapins > > > - reading of files/metadata > > > > I wonder why you would want to. The process waiting for these things is > > blocking on them anyway. It makes no sense to incur the additional cost of > > a context switch. > > It would give us the possibility of: > - async I/O > - easier I/O prioritizing (block badblocks -w for a while) > - better request reordering (since we now program the sorting > algorithm in it's own thread) > - blocking a swapin when memory is tight (we first have to > free some, so let the process wait a while)
.. See drivers/block.new in the vger tree.
-Andi
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