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Date: Thu, 21 Oct 2004 15:49:26 +0300
From: Jarkko Lavinen <jarkko.lavinen@nokia.com>
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Cc: dwmw2@infradead.org, linux-mtd@lists.infradead.org
Subject: Re: JFFS2 mount time
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On Wed, Oct 20, 2004 at 04:26:27PM +0200, ext Ferenc Havasi wrote:
> Jarkko made a measurement on a real NAND device: his JFFS2 image was 
> 120819928 (115M), after running sumtool the new image was 123338752 (117M).
> 
> Using the original mount time was 55 sec, with the new image it is only 
> 8.5 sec.

My initial test was only about the mount time. I have now also tried
to exercise the patched file system and with very little testing I get
CRC or ECC errors.

  # mount /dev/mtdblock2 /mnt -t jffs2
  # mkdir /mnt/testdir
  # umount /mnt
  jffs2_flush_wbuf(): Write failed with -5
  # mount /dev/mtdblock2 /mnt -t jffs2
  mtd->read(0x1fbec bytes from 0x1fc0414) returned ECC error
  Empty flash at 0x01fc2f1c ends at 0x01fc3000
  #

With plain 2.6.9-rc4-omap1 with fresh CVS MTD code, I don't see anything
weird occuring.

Jarkko Lavinen