[Nix-dev] Re: FOSDEM 2008 meeting

[apfelmus]

Eelco Dolstra wrote:
>>> "nix-env -i" is indeed surprisingly slow---"surprisingly" because other
>>> operations like `nix-build' don't seem to take that long...
> 
> It has gotten a lot slower over the last few months: it used to take 2 
> or 3 seconds (provided that all the Nix expressions where in the disk 
> cache - all the seek times for those small files add up), but now it's 
> more like 10.  This is probably because some expensive computations are 
> being done in Nix expressions (like the uniqList function) which might 
> be done in a different way or turned into primops.
> 
> So we should do some profiling...

Yes please :)  nix-env -qa something  takes ages, too :(


Regards,
apfelmus