* problems with "JFFS2 write speed"
@ 2004-12-09 13:18 Gareth Bult (Encryptec)
2004-12-09 13:29 ` Artem B. Bityuckiy
0 siblings, 1 reply; 3+ messages in thread
From: Gareth Bult (Encryptec) @ 2004-12-09 13:18 UTC (permalink / raw)
To: Linux MTD
Hi,
I'm using JFFS2 on a USB key. (using mtdblock)
Works well, read speed is blinding ..
If I use ext2, the write speed is measured in Mb/sec ..
Using jffs2 it's 29k / sec ..
Running Linux 2.6.9 ..
Anyone got any ideas re; speedups ?
tia
Gareth.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: problems with "JFFS2 write speed"
2004-12-09 13:18 problems with "JFFS2 write speed" Gareth Bult (Encryptec)
@ 2004-12-09 13:29 ` Artem B. Bityuckiy
2004-12-09 16:45 ` Gareth Bult (Encryptec)
0 siblings, 1 reply; 3+ messages in thread
From: Artem B. Bityuckiy @ 2004-12-09 13:29 UTC (permalink / raw)
To: Gareth Bult (Encryptec); +Cc: Linux MTD
Did you try disable compression? Which compression mode do you use
(size, priority) ?
Gareth Bult (Encryptec) wrote:
> Hi,
>
> I'm using JFFS2 on a USB key. (using mtdblock)
>
> Works well, read speed is blinding ..
>
> If I use ext2, the write speed is measured in Mb/sec ..
> Using jffs2 it's 29k / sec ..
>
> Running Linux 2.6.9 ..
>
> Anyone got any ideas re; speedups ?
>
> tia
> Gareth.
>
>
>
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/
>
--
Best Regards,
Artem B. Bityuckiy,
St.-Petersburg, Russia.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: problems with "JFFS2 write speed"
2004-12-09 13:29 ` Artem B. Bityuckiy
@ 2004-12-09 16:45 ` Gareth Bult (Encryptec)
0 siblings, 0 replies; 3+ messages in thread
From: Gareth Bult (Encryptec) @ 2004-12-09 16:45 UTC (permalink / raw)
To: Linux MTD
Hi,
Urm, no I wanted compression ... but a 2.4G celeron should be able to do
> 29k/sec !
Using priority ..
Q: I have an erasesize of 128k (and consequently a sector size of 128k)
because the memory in question is 256Mb.
(JFFS2 modifies sizes to fit within a malloc [fs.c])
Could this be the problem ?
tia
Gareth.
On Thu, 2004-12-09 at 16:29 +0300, Artem B. Bityuckiy wrote:
> Did you try disable compression? Which compression mode do you use
> (size, priority) ?
>
> Gareth Bult (Encryptec) wrote:
> > Hi,
> >
> > I'm using JFFS2 on a USB key. (using mtdblock)
> >
> > Works well, read speed is blinding ..
> >
> > If I use ext2, the write speed is measured in Mb/sec ..
> > Using jffs2 it's 29k / sec ..
> >
> > Running Linux 2.6.9 ..
> >
> > Anyone got any ideas re; speedups ?
> >
> > tia
> > Gareth.
> >
> >
> >
> > ______________________________________________________
> > Linux MTD discussion mailing list
> > http://lists.infradead.org/mailman/listinfo/linux-mtd/
> >
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2004-12-09 16:45 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2004-12-09 13:18 problems with "JFFS2 write speed" Gareth Bult (Encryptec)
2004-12-09 13:29 ` Artem B. Bityuckiy
2004-12-09 16:45 ` Gareth Bult (Encryptec)
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox