Messages in this thread | | | Date | Fri, 6 Mar 1998 12:02:27 +0100 (MET) | From | Rik van Riel <> | Subject | Re: Patch for block write clustering |
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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)
Rik. +-----------------------------+------------------------------+ | For Linux mm-patches, go to | "I'm busy managing memory.." | | my homepage (via LinuxHQ). | H.H.vanRiel@fys.ruu.nl | | ...submissions welcome... | http://www.fys.ruu.nl/~riel/ | +-----------------------------+------------------------------+
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