Re: Deciding between Git/Mercurial

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Hi,

I tried to refrain from commenting in this thread, because I do not want 
to encourage people just to use msysGit and never even attempt to fix 
their own issues.

But I cannot let this go uncommented:

On Mon, 28 Sep 2009, Felipe Contreras wrote:

> IMO the key difference between hg and git is the storage model: hg 
> stores deltas, while git stores snapshots. That would mean that certain 
> operations are theoretically faster in git (e.g. checkout, diff) while 
> others faster in hg, although with git's packed format I guess there's 
> no operation faster in hg. This means that it doesn't matter how much 
> hg's python code improves, or if they even re-write parts in C, they 
> will never be able to match git's performance (unless they change the 
> storage model, which essentially means changing the whole design -- 
> won't happen).

That is wrong.  "git log -- <file>" will always be slightly faster in 
Mercurial, for all the reasons you mentioned.

In addition, Mercurial _has_ parts re-written in C for performance, which 
renders it not-exactly more portable if you ask me.  Last time I checked, 
there was no way to compile a Python module with MinGW (or for that 
matter, Python itself), but you needed MSVC...

Ciao,
Dscho

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