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

[Johan Bolmsjo]

On Sat, Aug 12, 2006 at 01:09:15AM +0200, Johan Bolmsjö wrote:
> On Friday 11 August 2006 22:35, Nathaniel Smith wrote:
> > 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
> 
> I will install and try the mingw version on monday (and report back). Didn't 
> think of that right away. Could be cygwin as you say...
> 
> /Johan
> 
> 

Hello,

FYI:
The official 0.28 build for mingw has the same performance as the 0.26
build for mingw. Too bad the cygwin build has such issues.

/Johan