Re: [PATCH] kbuild,bpf: pass make jobs' value to pahole

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On 2024-11-02 11:04, Florian Schmaus wrote:
Pass the value of make's -j/--jobs argument to pahole, to avoid out of
memory errors and make pahole respect the "jobs" value of make.

On systems with little memory but many cores, invoking pahole using -j
without argument potentially creates too many pahole instances,
causing an out-of-memory situation. Instead, we should pass make's
"jobs" value as an argument to pahole's -j, which is likely configured
to be (much) lower than the actual core count on such systems.

If make was invoked without -j, either via cmdline or MAKEFLAGS, then
JOBS will be simply empty, resulting in the existing behavior, as
expected.

Signed-off-by: Florian Schmaus <flo@xxxxxxxxxxxx>

As discussed on IRC:

Tested-by: Holger Hoffstätte <holger@xxxxxxxxxxxxxxxxxxxxxx>

Thanks!
Holger




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