YoYo siska ha scritto:
On Tue, Jan 25, 2005 at 10:13:08AM +0100, Bastian Balthazar Bux wrote:
Bill Davidson ha scritto:
sadly they don't work with IO on disk, the cpu is too much faster than IO operation.On 17:26 Mon 24 Jan , [EMAIL PROTECTED] wrote:
hi,
Is there a way to slow down specific I/O operation, f.e. a copy of file
from one disk to another or from one partition to another.
I dont bother if it takes a little bit longer, but dont want it to take alot of i/o bantdwith of otherI think you want "nice" and "renice". They can give different priority levels
processes running currently in the system
to certain processes. For example if your file copy and another process wanted
to do something at the same time, the other process would be given the chance
first.
Bill
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emerge -av pv
but it's masked, so you have to add it to /etc/portage/packe.keywords.. (or just do it ACCEPT_KEYWORDS="~x86")
pv is just like cat but show a progress meter with speed and has the -L option which limits the speed, so you can do
pv -L 1M source_file >dest_file
(the version in gentoo and in debian differ in the way that one
recognizes 1M in -L as 1 megabyte, the other recognizes just the number
as speed in bytes, so you have to write -L 1000000, but i don't remeber
which was which ;)
so nice that we should request the version bump to 0.9.0, copyed in the "NiceTrick" mailfolder :)
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