On Thu, 13 Oct 2005, Michael Stone wrote: > On Thu, Oct 13, 2005 at 08:52:16AM -0300, Henrique de Moraes Holschuh wrote: > >I have never heard of anyone prefering to cp or cat a block device over > >using dd with a proper block size when doing partition/device zeroing (or > >as > >I prefer to do it, urandom'ing :P )/copying, or data cd/dvd copying. > > Well, I've never heard of people using dd instead of cp for moving large > groups of files from one place to another, which causes exactly the same > problem on the system as dd'ing a device and is much more common.
And can only be "fixed" by kernel changes, yes. But how is that related to the fact that dd is likely to be used to manipulate a continuous stream of major proportions from/to a single source/destination and could really benefit from O_DIRECT as an option (I never asked it to be the default mode of operation or anything like that) ? -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
