[bitbake-devel] [PATCH v2 0/6] fetch2: Updated SFTP fetcher

[Olof Johansson]

Hi,

On 2013-01-29 08:50, Olof Johansson wrote:
> Olof Johansson (6):
>   fetch2: Remove unused code in wget fetcher
>   fetch2: Add a class representing a generic URI
>   fetch2: unittests for bb.fetch2.URI class
>   fetch2: Adapt encode/decode url to use URI class
>   fetch2: Add editor modelines for bb.tests.*
>   fetch2: Add SFTP fetcher

One thing I forgot to mention; after speaking with kergoth on IRC
last Friday, we found that there are some performance penelties
in using the URI class instead of encode/decodeurl. I tried to
profile and see if there were any obvious ways to get it down to
the level of the old encode/decodeurl, but nothing obvious.

I did the performance evaluation by running the unittests.

Forking and running the unittests in seperate processes shows no
change:

 http://codepad.org/SYsVsckY

However, running them in a single process with the timeit module
shows a pretty big (proportional) regression:

 http://codepad.org/Vzu7Pqqw

Is this significant? Running the tests 10000, each run creating
three URI objects, takes ~2 seconds.

-- 
Olof Johasnson