Re: Deciding between Git/Mercurial

> 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...