linux-kernel - Re: UBI fastmap updates

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Wed, 27 Jun 2012 09:17:02 +0200
From:	Richard Weinberger <richard@....at>
To:	"Nikita V. Youshchenko" <nyoushchenko@...sta.com>
CC:	Namjae Jeon <linkinjeon@...il.com>, linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org, adrian.hunter@...el.com,
	Heinz.Egger@...utronix.de, thomas.wucher@...utronix.de,
	shmulik.ladkani@...il.com, tglx@...utronix.de,
	tim.bird@...sony.com, Marius.Mazarel@...l.ro,
	artem.bityutskiy@...ux.intel.com
Subject: Re: UBI fastmap updates

Am 27.06.2012 08:48, schrieb Nikita V. Youshchenko:
>> Would you infom me how much UBI attach time is improved with fastmap ?
> 
> I'm not Richard but still.
> 
> On board I'm currently working on, ubi attach time for 1G chip without 
> fastmap is more than 5 seconds. With fastmap, it is less than 250 
> milliseconds.

I can confirm these numbers.
On all of my boards the attach time dropped from a few seconds to
less than 500 milliseconds.
(The worst case I've seen was ~800 milliseconds)

Thanks,
//richard


Download attachment "signature.asc" of type "application/pgp-signature" (491 bytes)