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Re: dd performance
- To: misc_(_at_)_openbsd_(_dot_)_org
- Subject: Re: dd performance
- From: mickey <mickey_(_at_)_lucifier_(_dot_)_net>
- Date: Fri, 16 Dec 2005 15:55:49 +0100
On Fri, Dec 16, 2005 at 12:13:00AM +0100, Hannah Schroeter wrote:
> On Thu, Dec 15, 2005 at 11:20:13AM -0500, Jason Crawford wrote:
> >I think the very first thing you should change is use the raw device
> >in OpenBSD (/dev/rsd0c) and that should speed things up a bit.
> You're right. And high enough block size (though 1024k should be okay).
> I.e. dd if=/dev/zero of=/dev/rsd0c bs=1024k
well. blocks above 64k barely make any difference
on relatively fast modern machines.
paranoic mickey (my employers have changed but, the name has remained)