RE: JFFS3 & performance

Joakim Tjernlund
2004-12-16T15:00:11Z

> On Thu, 16 Dec 2004, Joakim Tjernlund wrote:
>
> > > On Thu, 16 Dec 2004, Joakim Tjernlund wrote:
> > >
> > > > Hi List
> > > >
> > > > I am a long time JFFS2 user(and developer), but I haven't been following
> > > > JFFS2 for a year or two. I have noticed that JFFS3 has begun and I figured
> > > > I would offer a few thoughts.
> > > >
> > > > 1) Consider changing the start seed to crc32 from 0 to -1. Zero
> > > > is not a good start seed for crc32
> > > If you do point 2 this will not be needed :-)
> >
> > Yes, but if you do point 2, you still have to consider start seed and it should
> > be != 0 regardless of what checksum you choose.
>
> Do you have some of your Ideas done? :)

No, I had the removal of the Adler32 checksum, but it is gone now.
I could possibly do that again and a optimized crc16(I did the crc32 in current kernel
so it shouldn't be hard) or adler32 checksum algorithm.
It will have to wait as I got plenty to do currently.

Jocke