pkg-devel much slower than pkg?

[Baptiste Daroussin]

On Fri, May 23, 2014 at 12:38:06PM +0200, Stefan Esser wrote:
> On my -CURRENT system with 1572 ports installed, I decided to give
> pkg-devel (pkg-1.3.0.b2) a try.
> 
> Using portmaster, I observe very significant increases in the time
> required to check which ports to upgrade. With pkg-devel:
> 
> # time portmaster -a
> ===>>> Gathering distinfo list for installed ports
> 
> ===>>> Starting check of installed ports for available updates
> 
> ===>>> All ports are up to date
> 
> ===>>> Exiting
> 
> real    13m43.057s (= 823s)
> user    0m44.465s
> sys     1m20.432s
> 
> The same command with pkg-1.2.7 needs less than 20% of the real
> time to run:
> 
> real    2m30.298s (= 150s)
> user    0m39.246s
> sys     1m11.392s
> 
> It may be too early to expect pkg-1.3 to be optimized for speed,
> but I just wanted to report this regression ...
> 
> Since the CPU times are not so different, it appears that the amount
> of disk I/O is much higher with pkg-devel.
> 
> It might be possible to optimize the database structure or to cache
> larger parts of the package DB in RAM (size is some 100MB on my system).
> 

This is a regression introduced during b1 -> b2 dev, we are working on it.

regards,
Bapt
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