From: Russ Dill <Russ.Dill@asu.edu>
To: Wojciech Kromer <krom@dgt-lab.com.pl>
Cc: mtd <linux-mtd@lists.infradead.org>
Subject: Re: JFFS2 on 8MB Flash-Chip conneted to MPC850 works extremly slow:(
Date: Wed, 29 Aug 2001 01:36:54 -0700 [thread overview]
Message-ID: <999074214.32409.1.camel@russ> (raw)
In-Reply-To: <3B8C9DC5.F3185B18@dgt-lab.com.pl>
On 29 Aug 2001 09:46:13 +0200, Wojciech Kromer wrote:
> >
> > I don't know what an "MDC" is, mut whatever changes your bus timings
>
> I can only change wait-states in ORx (option register in MPC850).
> But just mounting jffs2 still takes about 2 min :(
>
> -Are thre any settings in JFFS2 code, or in MTD code?
> -Maybe I can enlarge some buffers? But I don't know where.
jffs2 has to scan the entire medium at mount. Also, if there are
"unformatted" sectors, it erases them (so the first mount will be slower
than subsequent mounts). Did you look at you data sheets and see if that
is as tight as the timing can be?
next prev parent reply other threads:[~2001-08-29 8:30 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-28 11:59 JFFS2 on 8MB Flash-Chip conneted to MPC850 works extremly slow :( Wojciech Kromer
2001-08-28 15:53 ` Russ Dill
2001-08-29 6:07 ` Wojciech Kromer
2001-08-29 7:17 ` Russ Dill
2001-08-29 7:46 ` JFFS2 on 8MB Flash-Chip conneted to MPC850 works extremly slow:( Wojciech Kromer
2001-08-29 8:36 ` Russ Dill [this message]
2001-08-29 8:55 ` David Woodhouse
2001-08-29 9:17 ` Wojciech Kromer
2001-08-29 9:24 ` David Woodhouse
2001-08-29 10:15 ` Joakim Tjernlund
2001-08-29 10:19 ` David Woodhouse
2001-09-03 12:19 ` Wojciech Kromer
2001-09-03 12:26 ` David Woodhouse
[not found] ` <4189.999520431@redhat.com>
2001-09-03 12:42 ` Wojciech Kromer
2001-09-05 8:19 ` Wojciech Kromer
2001-09-05 8:29 ` David Woodhouse
-- strict thread matches above, loose matches on Subject: below --
2001-09-06 14:29 JFFS2 on 8MB Flash-Chip conneted to MPC850 works extremly slo w:( Jonas Holmberg
2001-09-07 7:33 ` JFFS2 on 8MB Flash-Chip conneted to MPC850 works extremly slow:( Wojciech Kromer
2001-09-07 8:10 ` David Woodhouse
2001-09-07 8:33 ` Wojciech Kromer
2001-09-07 13:26 ` Wojciech Kromer
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