Re: [Monotone-devel] performance of "mtn diff"

[Nathaniel Smith]

On Fri, Aug 11, 2006 at 01:29:33PM +0200, Johan Bolmsjo wrote:
> mingw 0.26
> ==========
[...]
> real    0m39.515s
> user    0m0.046s
> sys     0m0.046s
> 
> 
> cygwin 0.28
> ===========
[...]
> real    7m35.375s
> user    7m34.529s
> sys     0m0.343s

Wow, that is ridiculously slow.

I am suspicious, though, that the biggest difference between those two
versions is probably not anything in the monotone code, but simply
that one is native and one is using cygwin's emulation stuff.  Before
we go hunting through the code to figure out what changed, would
it be possible to try mingw 0.28 as well, to figure out whether the
problem actually _is_ in our code?

(I'd hope that either way we can do something, but I don't know that
much about cygwin.)

-- Nathaniel

-- 
So let us espouse a less contested notion of truth and falsehood, even
if it is philosophically debatable (if we listen to philosophers, we
must debate everything, and there would be no end to the discussion).
  -- Serendipities, Umberto Eco