[oe] I hava an idea to Make OpenEmbedded Run Faster

[Justin Patrin]

On 8/26/07, 杨同峰 <yangtf at envision.com.cn> wrote:
> EveryOne:
>       By two week  of using OE , I hava notice that task was topology
> sort to a queue .and  Run Task One By One.
> draw on the experience of Design of CPU . we can make a multiply thread
> run of it !
>
>       I notice that the biggest bottleneck of OE is do_fetch . then we
> can use a mutiply thread downloader instead of wget
>       And about task schedule ,use method like this:
>
>      bb_No1 do_fetch   do_patch do_configure do_build do_install
>      bb_No2                  do_fetch  do_patch       do_configure
> do_build do_install
>      bb_No3                                 do_fetch      do_patch
> do_configure do_build do_install
>      bb_No4
> do_fetch  .......
>
>      Idea 1 :    focus on download one file one time ,and make it more
> fast use mutiply thread downloader
>      Idea 2 :    make 0ther task of bb files  to run  asynchronously
>      Idea 3 :   deal with task  topology more carefully to make sure
> that  the bb file that was dependend was finish before
>                     this one start to do_patch (Notice : not before
> do_fetch )
>      Idea 4 :   If topology can't make sure Idea 3 ,we must tell OE how
> and when  to wait
>
>      If the Idea can come true ,The speed can go 3 times faster then
> now
>

bitbake already does this.

-- 
Justin Patrin