Re: ext3 IO latency measurements (was: Linux 2.6.29)

Bron Gondwana
2009-03-26T23:04:59Z

On Thu, Mar 26, 2009 at 08:42:09PM +0000, Alan Cox wrote:
> > before performing the update. So while relatime doesn't conform, the
> > practical difference is meaningless. You can't depend on atime being
> > updated in a timely manner.
>
> POSIX says a disk write interrupted by a signal can be a short write. If
> you do this in practice all hell breaks loose.
>
> A conforming implementation needs to conform with expectations not just
> play lawyer games with users systems.

Is this the same Alan Cox who thought a couple of months ago that
having an insanely low default maximum number epoll instances was a
reasonable answer to a theoretical DoS risk, despite it breaking
pretty much every reasonable user of the epoll interface?

Bron ( what stable interface? )