Re: [jgit-dev] Buck build for JGit

[Igor Fedorenko <igor@xxxxxxxxxxxxxx>]

FWIW I can't reproduce the problem locally. Maven build takes about 2
minutes on my macbook, with bulk of the time spent running tests
(~1m10s) and building javadoc (~50s). The build takes ~15 seconds if I
disable tests and javadoc. Hard to tell why the same build takes so much
longer for you, but I'd check if maven build uses expected jdk with
reasonable parameters.

-- 
Regards,
Igor

On Sat, Jan 2, 2016, at 01:40 AM, Thomas Meyer wrote:
> 
> > Am 01.01.2016 um 05:28 schrieb Shawn Pearce <spearce@xxxxxxxxxxx>:
> > 
> >> On Thu, Dec 31, 2015 at 8:09 PM, Thomas Meyer <thomas@xxxxxxxx> wrote:
> >> Am 01.01.2016 3:56 vorm. schrieb Shawn Pearce <spearce@xxxxxxxxxxx>:
> >>> 
> >>> On Thu, Dec 31, 2015 at 6:30 PM, Igor Fedorenko <igor@xxxxxxxxxxxxxx> wrote:
> >>>> Out of curiosity, what build times do you see with these three build
> >>>> systems?
> >>> 
> >>> First build:
> >>>  mvn package:   7m19.584s
> >>>  buck build/test:  2m9.535s
> >>> 
> >>> No-op rebuild:
> >>>  mvn:  8m16.095s
> >>>  buck:  0m8.296s
> >> 
> >> Do you know why exactly maven is so slow?
> > 
> > No, its Maven.
> > 
> >> How did you invoke it?
> > 
> > mvn package
> > 
> >> Did you run with -T 1C ?
> > 
> > Sure, it took 15m38.326s and didn't tell me much.
> 
> Huh, 15 minutes? Strange, as above first build in single thread mode took
> "only" 7 minutes. I would have expected a faster execution in parallel
> mode.
> Maven has this silly default to build everything in single thread mode,
> using option "-T 1C" enables parallel build using 1 thread per cpu core.
> 
> With kind regards
> Thomas
>