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From: HeLei <leon.he@msn.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Does uboot EBS(erase block summary) to reduce JFFS2	scaning time?
Date: Tue, 3 Nov 2009 18:02:57 +0800	[thread overview]
Message-ID: <COL117-W2638ACC18DCE43F170E8EAEEB20@phx.gbl> (raw)
In-Reply-To: <OFEF1F9767.74F124D0-ONC1257663.00357B14-C1257663.0036359F@transmode.se>




> Subject: RE: [U-Boot] Does uboot EBS(erase block summary) to reduce JFFS2	scaning time?
> To: leon.he at msn.com
> CC: u-boot at lists.denx.de
> From: joakim.tjernlund at transmode.se
> Date: Tue, 3 Nov 2009 10:52:06 +0100
> 
> HeLei <leon.he@msn.com> wrote on 03/11/2009 10:39:48:
> >
> >
> > > Subject: RE: [U-Boot] Does uboot EBS(erase block summary) to reduce JFFS2
> > scaning time?
> > > To: leon.he at msn.com
> > > CC: u-boot at lists.denx.de
> > > From: joakim.tjernlund at transmode.se
> > > Date: Tue, 3 Nov 2009 10:29:47 +0100
> > >
> > > HeLei <leon.he@msn.com> wrote on 03/11/2009 10:21:13:
> > > >
> > > > Ok, thank you, jocke.
> > > > Can you tell me how much time can be saved according to your idea, by your
> > experience?
> > >
> > > Can't remember any figures, but is was lots by not scanning empty space. It all
> > > depends on how full your fs is.
> >    Thanks, I got it!
> >    I think the problem of JFFS2 is it never store the index of file system in
> > flash. However  1~2GiB flash is quite popular, how JFFS2 face such situation :(
> 
> JFFS2 isn't really suited for such big FS:es and works best on NOR flash.
> You should consider some other FS(YAFFS, LogFS, UBIFS etc.). I can't say
> which tough as I haven't used any of them.

  I got it, thanks

> 
>     Jocke
> 
 		 	   		  
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  reply	other threads:[~2009-11-03 10:02 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-03  6:37 [U-Boot] Does uboot EBS(erase block summary) to reduce JFFS2 scaning time? HeLei
2009-11-03  7:41 ` Joakim Tjernlund
2009-11-03  8:21   ` HeLei
2009-11-03  9:08     ` Joakim Tjernlund
2009-11-03  9:21       ` HeLei
2009-11-03  9:29         ` Joakim Tjernlund
2009-11-03  9:39           ` HeLei
2009-11-03  9:52             ` Joakim Tjernlund
2009-11-03 10:02               ` HeLei [this message]
2009-11-03  9:20     ` Joakim Tjernlund
2009-11-03  9:26       ` HeLei
2009-11-03  9:35         ` Joakim Tjernlund
2009-11-03 10:55       ` Joakim Tjernlund
2009-11-03 11:08         ` HeLei
2009-11-03 11:13           ` Joakim Tjernlund
2009-11-03 11:21             ` HeLei
2009-11-03 13:21         ` Wolfgang Denk
2009-11-03 13:30           ` Joakim Tjernlund
2009-11-03 15:57           ` Joakim Tjernlund
2009-11-03  9:43     ` Joakim Tjernlund
2009-11-03 10:01       ` HeLei
2009-11-05  8:33   ` HeLei

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