number of jobs -j ?

[lejeczek]

Hi guys.

How can number of jobs(make) be controlled - or any other 
place which 'mock' goes multitasking?
I did a bit of tweaking in:  ~/.rpmmacros of the user who 
runs mocks, but that does not seem to have desired effect.
many thanks, L.

[Todd Zullinger]

Hi,

lejeczek via buildsys wrote:
> How can number of jobs(make) be controlled - or any other
> place which 'mock' goes multitasking?
>
> I did a bit of tweaking in:  ~/.rpmmacros of the user who
> runs mocks, but that does not seem to have desired effect.

I think -- though I don't know that I've ever had a need for
it -- setting the RPM_BUILD_NCPUS envvar is the proper way
to do this.  You can set some of the _smp_* macros directly,
but I don't think that's as clear or clean.

So in ~/.config/mock.cfg or in a chroot config, you can put
something like this:

config_opts['environment']['RPM_BUILD_NCPUS'] = '2'

[Miroslav Suchý]

Dne 16. 06. 25 v 11:41 dop. lejeczek via buildsys napsal(a):
> Hi guys.
>
> How can number of jobs(make) be controlled - or any other place which 'mock' goes multitasking?
> I did a bit of tweaking in:  ~/.rpmmacros of the user who runs mocks, but that does not seem to have desired effect.
> many thanks, L.

Mock ignores rpmmacros on host.

Instead go to config (or to ~/.config/mock.cfg )

and put there

config_opts['macros']['%Add_your_macro_name_here'] = "add macro value here"

in your specific case:

config_opts['macros']['%_smp_mflags'] = "-j16"

For more example what you can put in config see

/usr/share/doc/mock/site-defaults.cfg

Tip: better than -j is -l as it can utilize computer better. See `man make`.

[lejeczek]

thanks,
That does work.
Number of spawned LTOs seems to "disrespect" that though - 
at certain stages of a build mock/rpmbuild spawns to the max 
- would there a similar or any way, to control that too?
many thanks, L.

[Vít Ondruch]

Just FTR, once I complained about the amount of processes spawned by LTO:

https://bugzilla.redhat.com/show_bug.cgi?id=2041537

Vít

Dne 05. 07. 25 v 7:15 lejeczek via buildsys napsal(a):
> thanks,
> That does work.
> Number of spawned LTOs seems to "disrespect" that though - at certain 
> stages of a build mock/rpmbuild spawns to the max - would there a 
> similar or any way, to control that too?
> many thanks, L.