Hi Chris,

Wondering if this is a Windows issue with docker. Those are good additions, 
looking forward to the implementation! 

Hopefully David has some free time and can give it a try on his end yo see if 
he gets the same performance issues. 

I'm going to try setting everything up on another Windows machine as a sanity 
check.

Btw, thanks to everyone for actively helping out.

Cheers,
Cris



> On Jan 4, 2017, at 11:45 AM, Christopher Collins <[email protected]> wrote:
> 
> Hi Cris,
> 
>> On Wed, Jan 04, 2017 at 09:32:37AM -0500, Cris Frusina wrote:
>> I'm building my code on top of the bleprph app. I haven't done too
>> much to it as I'm still just playing around with myNewt. I've added
>> the nffs dependency and some custom code, most of it is still the
>> same.
>> 
>> It depends on the changes I make to the code, if I only change the
>> main.c file the compile, build and sign would be about 2 to 3 min for
>> any small change. This can go up to 5-7 min if the change requires to
>> recompile some other dependencies. A full compile and build is about
>> 20 to 30 min.
> 
> Whoa, that's insane!  A build definitely should not take that long.  The
> docker solution on non-Linux machines will be slower than native, but
> not that much slower!  It has been a while since I have used docker, so
> I don't recall the exact build times, but I wouldn't expect a full
> rebuild of bleprph to take longer than five minutes.  If you're only
> changing one file, the build time definitely should not exceed 10
> seconds.
> 
> There are two planned speed improvements for newt.  I don't think these
> will fix the problem you're experiencing, but I wanted to mention them:
> 
> 1. Multithreaded builds.  This is analogous to make's "-j" option.  This
> is an obvious improvement that should greatly reduce build times,
> particularly for full rebuilds.
> 
> 2. Smarter YAML parsing.  Newt has to do a lot of inefficient YAML file
> processing to determine which files need to be rebuilt and how to build
> them.  This is especially noticeable in builds with a lot of syscfg
> settings (particularly bluetooth).  I can think of a change that should
> give a pretty good speed improvement to this process.  This should help
> most in cases where only one or a few files need to be rebuilt.
> 
> Chris
> 

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