On Sun, Nov 3, 2024 at 9:04 PM Holger Hoffstätte
<holger@xxxxxxxxxxxxxxxxxxxxxx> wrote:
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:
Do not do this. Others do not see what was discussed.
I guess the right thing to do is to join the jobserver.
https://www.gnu.org/software/make/manual/html_node/POSIX-Jobserver.html