Re: Parsing recipes progress bar doesn't show incremental progress

[Gary Thomas <gary@mlbassoc.com>]

On 2015-01-16 01:28, Richard Purdie wrote:
> On Thu, 2015-01-15 at 11:22 -0700, Gary Thomas wrote:
>> I think there has been a recent change in behaviour.  When
>> you start up bitbake there is a progress bar during the recipe
>> parsing:
>>     Parsing recipes: 100% |##########################################| Time: 00:00:05
>>
>> I used to see this bar fill as it went, but now it sits there
>> at 0% until it is completely done and then BAM goes to 100%
>>
>> Has anyone else seen this?  I'm running Poky/Yocto updated
>> to 2b925045877aeb44d9823a8c9515e8ab8fca1e52 as of 2015-01-15
>
> My guess is that the delay introduced after parsing from pyinotify is
> causing the bar to be visible at 100% for a while. I've just merged the
> performance fix for pyinotify, can you see if its still doing what you
> describe after that?

It may be better, certainly less of the "pregnant pause" now.

The progress bar for 'parsing recipes' seems to work fine when it's
actually parsing a lot of recipes.  The behaviour I was seeing happens
when bitbake is able to use cached data, e.g.
   Loading cache: 100% |####################################################################################| ETA:  00:00:00
   Loaded 1587 entries from dependency cache.
   Parsing recipes: 100% |##################################################################################| Time: 00:00:01
   Parsing of 1165 .bb files complete (1164 cached, 1 parsed). 1586 targets, 115 skipped, 0 masked, 0 errors.

In this case, the second progress bar was empty for the one second that
phase took and there were no intermediate changes to it.

Maybe it's just an impression I got yesterday when that second
progress bar sat empty for 5 seconds.  Today it took only one
(for the same build tree), so perhaps you did improve it.

Thanks for looking at this.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------