[PATCH v2 0/6] Improve make and make check parallelism

Peter Bergner bergner@oss.tenstorrent.com
Fri Jun 19 23:26:25 GMT 2026


On 6/15/26 10:15 PM, Jeffrey Law wrote:
> On 6/15/2026 1:32 PM, Adhemerval Zanella wrote:
>> One thing that has bothered me for some time is that neither 'make' nor
>> 'make check' scales well with the number of cores: although each
>> subdirectory builds with full internal parallelism, the top-level
>> recursion is marked .NOTPARALLEL and runs the sub-makes strictly one at
>> a time.
> [ ... ]
> I'm not qualified to comment on the technical bits, but certainly 
> welcome extracting more parallelism for the build and testing steps.

+100!

I've been using this on a native glibc build on a RISC-V Spacemit K1
and the make check time went from 3h45m down to 2h45m, so it's saved
me an entire hour! :-)

Peter



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