Hello, On Wed, 11 Apr 2007 11:05:32 +0200 (CEST) "Carlos E. R." <[EMAIL PROTECTED]> wrote:
> -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > > El 2007-04-10 a las 23:09 +0400, Aaron Kulkis escribió: > > > > Yes, I use ionice. But it is not very usefull, only root can use it. For > > > instance, I have to copy large files, and I'm not really interested in > > > doing > > > it fast, rather to be able to keep working on something else at the same > > > time. So, I fire the copy, find out the pid, then as root I re-io-nice it. > > > That should not require root priviledges. > > > > > > But your idea of changing the scheduler for a whole device sounds > > > curious. > > > I usually find kernel documents made for developpers to understand, much > > > is > > > assumed to be known already by the reader. There is only one file that > > > talks > > > about ionice, and not much. > > > > Why not just nice the copy command from the get go... > > > > i.e. > > $ nice cp /file/source/big /file/destination/copy/here > > I do, but it's not "nice" enough > > The disk is so busy for a long time when copying a half a gig single file > that the rest of the tasks are sluggish, > > I'm not in a hurry over these operations, I just want to continue working > as usual. How about using a Best effort class of "ionice"? An unprivilege user can set a class data[0-7]. Alternatively, you could use sudo. e.g. 'nice -n19 sudo ionice -c3 busytask' or if running already then 'nice -n19 sudo ionice -c3 -p `pidof busytask`'. But, since an io priority is lowered, it usually would take time long. eshsf -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
