On Tuesday 29 July 2008 10:11:47 James Kehl wrote:
> > -----Original Message-----
> > From: yaffs-bounces@lists.aleph1.co.uk [mailto:yaffs-
> > bounces@lists.aleph1.co.uk] On Behalf Of Wookey
> > Sent: Tuesday, 29 July 2008 2:16 AM
> > To: alex z
> > Cc: celeber2@gmail.com; yaffs@lists.aleph1.co.uk
> > Subject: Re: [Yaffs] Mounting time
> >
> > well, yes, that's what happens. Can you split your partitions into
> > smaller chunks, make (some of) them read-only? Battery backup allowing
> > proper shutdown?
>
> Does anyone have any figures on how long it takes to create a
> checkpoint? Does it depend on partition size, or activity?

It depends on partition size and the number of files.

>
> If the recommended solution is - effectively - a mini-UPS and a
> power-fail interrupt, then I'd like some vague idea how large the 'UPS'
> will need to be :)

The time is easy to measure: just do a umount.

It should take only approx the same amount of time as a checkpointed mount (ie 
3 sec or so in this case).

>
> James
>
>
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