[oe] I hava an idea to Make OpenEmbedded Run Faster
杨同峰
yangtf at envision.com.cn
Mon Aug 27 04:23:50 UTC 2007
really?? Bitbake same to be single thread . My Main Idear is like this
when some task is compiling ,Some task is fetching ,and other maybe
do_installing .
but bitbake don't look like this .
Tongfeng.Yang
在 2007-08-26日的 21:04 -0700,Justin Patrin写道:
> 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.
>
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