Man pages matching name get_nprocs_conf in section 3:

get_nprocs_conf.3.en	debian 10 / manpages-dev
get_nprocs_conf.3.ja	debian 10 / manpages-ja-dev
get_nprocs_conf.3.en	debian 11 / manpages-dev
get_nprocs_conf.3.fr	debian 11 / manpages-fr-dev
get_nprocs_conf.3.ja	debian 11 / manpages-ja-dev
get_nprocs_conf.3.en	debian 12 / manpages-dev
get_nprocs_conf.3.ja	debian 12 / manpages-ja-dev