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Date:      Wed, 29 May 1996 21:27:34 +0000
From:      Poul-Henning Kamp <phk@critter.tfs.com>
To:        hackers@freebsd.org
Subject:   Re: Breaking ffs - speed enhancement? 
Message-ID:  <12089.833405254@critter.tfs.com>
In-Reply-To: Your message of "Wed, 29 May 1996 13:32:29 MST." <199605292032.NAA02323@Root.COM> 

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>    They already are updated in-core and only written out during sync. The
> problem is that on busy machines, *thousands* of inodes have to be written
> out during the sync, and this can take 10+ seconds. With sync occuring every
> 30 seconds, this means the machine spends 33% of it's disk I/O time *just*
> writing out inodes. The access time is almost completely useless on a busy
> fileserver, so this is just a waste.

Veritas offers this as a mount-time option as far as I recall.

I belive we should have it, laptops will love it too.

--
Poul-Henning Kamp           | phk@FreeBSD.ORG       FreeBSD Core-team.
http://www.freebsd.org/~phk | phk@login.dknet.dk    Private mailbox.
whois: [PHK]                | phk@ref.tfs.com       TRW Financial Systems, Inc.
Future will arrive by its own means, progress not so.



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