Can you give the time saving using --debug=time for -j1 and -j4? On Mon, Dec 28, 2015 at 11:49 PM, Schleimer, Ben via Scons-dev < [email protected]> wrote:
> Hi Dirk, > > >for which targets exactly would you build the list of source files? All > of them? Regard, that "." is not always the default > >target...so you'd have to parse the SConstructs/SConscripts first anyway. > >In it's current form, the Taskmaster never builds the full DAG beforehand > (a common misconception among people that suggest a > >seemingly simple performance "hack", like yours ;) ), but simply expands > the list of given Targets until all build prerequisites are > >met. This allows you to shorten compile/update times in large builds by > specifying a single library/program on the command-line > > >only. How would your daemon handle this? > > I am taking Bill Deegan's advice and starting by modifying Iteractive.py. > I think that the standard behavior is great, I just want to tweak it a bit > to avoid the heaviest scons-induced overhead of the code-run-debug cycle, > the building of the DAG. > > > My project has 5 SConscript files and 2 SConstruct files and just by using: > $ scons.py -j4 --interactive > scons: Reading SConscript files ... > Building Debug-x86-none/libholo.so in Debug configuration > Building Debug-x86-none/HoloProcess in Debug configuration > scons: done reading SConscript files. > scons>>> build > > > it drops the incremental build time by 0.2 secs. > > I'm very curious about what kind of time savings occur on much larger > projects. I submitted a pull request on bitbucket to automate the build > inside interactive mode: > > https://bitbucket.org/scons/scons/pull-requests/287/added-usr1-signal-handling-to-interactive/diff > > Next, inside interactive mode, I'm planning on pulling all of the Nodes > and watching them and then trying to do background compiles whenever a file > is changed. > > Sincerely > Ben > _______________________________________________ > Scons-dev mailing list > [email protected] > https://pairlist2.pair.net/mailman/listinfo/scons-dev >
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