Re: Phoronix article slaming BTRFS

Jens Axboe
2009-06-24T17:38:37Z

On Wed, Jun 24 2009, Mike Ramsey wrote:
> Jens Axboe <jens.axboe <at> oracle.com> writes:
>
> >
> > On Wed, Jun 24 2009, Mike Ramsey wrote:
> > > Stephan von Krawczynski <skraw <at> ithnet.com> writes:
> [snip]
> > > Depends on who you talk to.
> > >
> > > http://www.tomshardware.com/news/ocz-ssd-vertex-intel-solid-state,7127.html
> > >
> > > "OCZ Says Its New Vertex SSD Beats Intel's X25-E"
> >
> > Heh, the Vertex beating the X25-E? I think such a statement could only
> > come from OCZ. No amount of magic will suddenly make MLC beat SLC, let
> > alone a well tuned firmware like the X25-E's. I'm sure they concocted
> > some synthetic benchmark where the Vertex has some slight edge. In the
> > real world, the X25-E wipes the floor with the Vertex.
> >
> > The Vertex is indeed a good performer, in its price range it's currently
> > the one to beat. I have doubts about the maturity of the product though,
> > looks mostly like a live beta being tested in the field. So I'd just be
> > careful with what kind of use they are put to. But just running tests on
> > the drive does show that it performs well for most things.
> >
>
> If I was buying for business than the Intel drives would be my choice.
> They are clearly the quality leader. For instance, Intel has tweaked
> their firmware to optimize for small IOs. The X25-E and X25-M are class.
> We agree here I think.
>
> For home use where it is *my* money I am willing to have a little faith
> in order to save a couple hundred dollars. I realize that OCZ and its
> controller supplier will be shipping firmware updates. But don't kid
> yourself, so is Intel.

Of course they do, everything has bugs. What I'm worried about is the
severity of those bugs, and the amount and quality of testing that has
gone into these products.

> BTW, what OCZ did to increase speed was to increase the cache size in
> their large capacity high end Vertex models. This wouldn't help my
> 30 GB model.

It's easy to throw cache at the problem and make it faster. That's like
shaving weight off a car. Might make it go faster, definitely wont make
it safer.

--
Jens Axboe