[poky] [PATCH 0/4][Image Creator]Add mulitple extra cache fields request support

[Ke, Liping]

Hi, All

I have test the memory usage with htop. It will show that when loading cache,
Bitbake will use 1.3~1.4%. There's no change compared with namedutple.
So I guess it should not impact memeory usage very much.

And the cahce file (core/base) part increased < 200k. 

So this change should not impact performance greatly ( class vs namedtuple)

Thanks & Regards,
criping

> -----Original Message-----
> From: poky-bounces at yoctoproject.org
> [mailto:poky-bounces at yoctoproject.org] On Behalf Of Ke Liping
> Sent: Thursday, May 26, 2011 10:54 AM
> To: poky at yoctoproject.org
> Subject: [poky] [PATCH 0/4][Image Creator]Add mulitple extra cache fields
> request support
> 
> From: Liping Ke <liping.ke at intel.com>
> 
> The series of patch are for mplementing multiple extra cache fields
> request support.If user needs to request extra cache fields besides
> CoreRecipeInfo fields, just add a new XXXRecipeInfo class definition
> as Image Creator UI Hob Does.
> For implementing this new feature, we refactory current cache code,
> remove namedtuple and define corresponding class for dynamical cache
> fields support per different cache usage request.
> 
> Liping Ke (4):
>   Refactory Current Cache implementation
>   Introduce extra cache class for image creator
>   Introduce new param caches_array into Cache impl.
>   Implement multiple extra cache fields request support
> 
>  bitbake/lib/bb/cache.py       |  532
> ++++++++++++++++++++++-------------------
>  bitbake/lib/bb/cache_extra.py |   54 ++++
>  bitbake/lib/bb/cooker.py      |   70 ++++--
>  bitbake/lib/bb/shell.py       |    2 +-
>  bitbake/lib/bb/ui/hob.py      |    2 +
>  5 files changed, 396 insertions(+), 264 deletions(-)
>  create mode 100644 bitbake/lib/bb/cache_extra.py
> 
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