Messages in this thread |  | | Date | Wed, 13 Nov 1996 16:35:05 +0100 (MET) | From | "Michael L. Galbraith" <> | Subject | Re: Really slow /dev/zero in 2.1.9 |
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On Wed, 13 Nov 1996, Jeff Voskamp [MFCF] wrote:
> I just tried making a new swapfile today (needed a bit more swap for > my latest project). It took "forever" to dd /dev/zero to the swapfile. > > So I took a look at drivers/char/mem.c. Down around line 200 is a for > loop that's filling the user buffer _one byte at a time_ and checking > if we need rescheduling between each byte. It should probably be using > clear_user(), but I'm unsure if it's safe to do it in one big whack. > > Suggestions? > > Jeff Voskamp >
I appreciate the vote of confidence in your cc-ing me, but let there be a misconception, I am not even in the same galexy as linus and friends.
Mike
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