Con Kolivas wrote:
On Sun, 2 Oct 2005 12:26, Marc Perkel wrote:
Just a thought -----
Programs like cp -a /bigdir /backup and rsync usually bring the server
to a crawl no matter how much "nice" you put on them. Is there any way
to make "nice" smarter in that it limits io as well as processor usage?
If cp and rsyne ran a little slower IO wise then everything else could
run too.
The latest cfq io scheduler supports io nice levels. By default it links the
io nice levels to the cpu nice levels so if you use cfq and set your file
commands nice 19 they will use as little io priority as possible. Note this
only works on the read side but that makes a dramatic difference already.
Cheers
Con
Kewl - so - what version is it in?
--
Marc Perkel - [email protected]
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