Re: Is Parallel Programming Hard, And, If So, What Can You Do About It?

But the drive also knows things about the data that the OS can't know
(things that have to do with the physical location of the data on the
platters).

No it doesn’t.

I admire your nuanced understanding of the matter.

More reliable, I don't know: to get comparable performance, you'll
need comparable complexity ...

Fewer layers ⇒ less complexity.

The relation between these two is not nearly that simple.

- Those "few filesystems" aren't nearly good enough to compete with
  a normal filesystem running on top of a typical SSD.  Simply because
  those filesystems have not been designed for those kinds of uses.

Of course they are.

Can you name some?

You don’t think there are filesystem experts working on the
Linux kernel?

Just because your design is optimized for ~100MB devices doesn't mean
you're an idiot who couldn't have made a design optimized for
~1TB devices.

Just like the fact that your design for ~1TB devices sucks rocks
when used on ~100MB devices doesn't make you an idiot.


        Stefan