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Date:      Fri, 27 Apr 2001 14:58:29 -0700 (PDT)
From:      Nick Sayer <nsayer@quack.kfu.com>
To:        Cy.Schubert@uumail.gov.bc.ca
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: Dump very slow in 4.3-RELEASE?
Message-ID:  <1545.127.0.0.1.988408709.squirrel@medusa.kfu.com>
In-Reply-To: <200104252246.f3PMkQl49426@cwsys.cwsent.com>
References:  <200104252246.f3PMkQl49426@cwsys.cwsent.com>

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> 
> There was some discussion about this on this list a couple of weeks ago
>  shortly after the traverse.c patch was MFC'd.  The conclusion at that 
> time was that this was to be expected.
> 

Then it should be documented in the dump man page, IMHO.

I found a workaround. Instead of chflag nodump on the top of a hierarchy,
one can do a

find . -type f -print0 | xargs -0 chflags nodump

but that is imperfect, as you will still dump the (skeleton) directory
hierarchy,

As long as no directory has nodump, dump speeds through Pass II are normal
(that is, fast).

If there really is no way for this functionality to not suck, then it should
be optional, IMHO. I'd rather go back to having to chflag -R a hierarchy
before dump starts.




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