[geeks] HD/IDE question

[Charles Shannon Hendrix]

Tue, 26 Sep 2006 @ 10:49 -0400, Sridhar Ayengar said:

> Charles Shannon Hendrix wrote:
> > Tue, 26 Sep 2006 @ 10:23 -0400, Sridhar Ayengar said:
> > 
> >> velociraptor wrote:
> >>> So, the next question: recommendations for a file system which is
> >>> readable and writeable by all the major OSes? E.g. OS X, Solaris,
> >>> Linux, *BSD, Windows XP?  Ext2/3 appears to be the only choice for
> >>> support of files >2GB.  I'd be interested to hear other suggestions
> >>> and/or anyone's experiences using the tools for ext2 under non-Linux
> >>> OSes.
> >> I agree that ext2 appears to be the only choice.  I haven't tried it 
> >> under Windows yet, but it works fine under NetBSD.
> > 
> > Just one caveat: I've found that Windows is very slow when reading ext2,
> > either with the filesystem drivers, or the userland program.
> > 
> > Anyone know why?
> > 
> > Or is it just Windows being slower in general that I'm seeing?
> 
> What sort of percentage slower are you seeing?  More like 10% or more 
> like 50%?

I would have to benchmark to know for sure.

Basically I can write ext2 files in Linux about 1.5-2 times as fast as
the Windows side can read them.  Keep in mind the Linux side is using
ext3, which means writing journaled data.

That just seems a bit off.

20% hit... I'd expect that, but not a half-speed hit, with reading being
slower than journaled writing.

Next time I go to Windows, I'll try to properly time this.

It's not a big deal, since I use it only rarely, but if I can speed it
up that would be nice.  

If I can't speed it up, I'd at least like to know why.


-- 
shannon "AT" widomaker.com -- ["There are nowadays professors of
philosophy, but not philosophers." ]