Follow-up Comment #2, bug #65533 (group make): Hi Paul,
[comment #1 comment #1:] > Since I don't have any idea what the "nwchem" project is or how its makefiles work and you haven't provided any short examples, I can't say for sure. Thank you for your insight. For the record: NWChem is a popular computational chemistry software package: https://www.nwchem-sw.org/ Here is their top-level makefile: https://github.com/nwchemgit/nwchem/blob/master/src/GNUmakefile Assuming that your explanation is correct, the gmake process should consume close to 100% of CPU much of the time doing these variable expansions. However, I don't observe this. gmake's CPU usage is mostly <1%, and all processes listed by top look like this most of the time: PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND 36100 nobody 1 68 0 13M 2136K piperd 1 0:00 0.70% gmake 65966 nobody 1 68 0 13M 2272K wait 4 0:00 0.00% gmake 46544 nobody 1 68 0 13M 1948K wait 3 0:00 0.00% gmake 61005 nobody 1 20 0 13M 1316K wait 1 0:00 0.00% make 83976 nobody 1 55 0 13M 1684K wait 5 0:00 0.00% sh 77926 nobody 1 68 0 14M 2952K wait 4 0:00 0.00% bash 46543 nobody 1 20 0 13M 1712K wait 4 0:00 0.00% sh 77925 nobody 1 68 0 13M 1912K wait 2 0:00 0.00% sh 77927 nobody 1 68 0 12M 1544K piperd 6 0:00 0.00% cut It looks like they invoke a lot of external processes (cut, sed, perl, awk), and this is somehow extremely slower than before when there is a lot of them. Yuri _______________________________________________________ Reply to this item at: <https://savannah.gnu.org/bugs/?65533> _______________________________________________ Message sent via Savannah https://savannah.gnu.org/
