FWIW As for profiling output, this should probably go to a file (possibly with a .PID on the end) , not stdout .....unless..... you start to embrace the idea of structured output for everything that make produces.
I have used XML before and it has advantages, not the least of which is that it is somewhat robust in the face of corruption and that does happen. I prefer JSON though because it's more readable and it's very easy to parse. On 27 November 2013 07:56, Eddy Petrișor <eddy.petri...@gmail.com> wrote: > > Pe 25.11.2013 11:09, "Reinier Post" <reinp...@win.tue.nl> a scris: > > >> > > Can't this functionality be provided by a wrapper $SHELL? >> > > Sure, it's an extra exec(), >> > > but it will keep the make code base simpler. >> > >> > I'm not sure if I understand what you mean. Do you mean wrapping all >> > target invokes in a $SHELL? >> >> Yes; something line /usr/bin/time. > > Not on Windows. > >> > If that's the case, you don't get the actual/real-time measurement, and >> > that might skew your profiling information. >> >> True. Hnow how much of a difference does it make? > > Depends on how badly the build system is written. And that's what the target > of the profiling is, finding out how bad is it. I feel that penalising the > most exactly the build systems that need the least the slow down it's bad > design. > >> > I have some build systems that can take easily over 12 hours to do a >> > full build (several thousands of elfs in recursive >> > make calls - I know that's bad, I am working on it), so any extra time >> > waste just for the measurement can mean >> > significant delays in getting the results. >> >> If it's 15 minutes, they are not the thing you want to optimize first. >> The build is probably running overnight anyway. > > If it's a live/production system, then any unknown slow down time might not > be acceptable. > > > _______________________________________________ > Bug-make mailing list > Bug-make@gnu.org > https://lists.gnu.org/mailman/listinfo/bug-make > -- You could help some brave and decent people to have access to uncensored news by making a donation at: http://www.thezimbabwean.co.uk/friends/ _______________________________________________ Bug-make mailing list Bug-make@gnu.org https://lists.gnu.org/mailman/listinfo/bug-make
