On Wed, 11 Mar 2015 16:36:43 +0000 Ian Malone <ibmalone@xxxxxxxxx> wrote: > Since I can't reproduce this problem I'm not sure what's causing it. > If you really are finding make subprocesses limited to 100% cpu across > the lot then maybe have a look to see if there are any cgroups limits > active > https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Resource_Management_Guide/ch01.html > may also be worth running on the stock fedora kernel to test that > it's not something that you've turned on in your custom kernel. I looked in the kernel documentation, and it seems that in order to be limited by cgroups, the application has to create a cgroup and attach to it. The cgroups are in a virtual file system under /sys/fs. They can be seen by cat /etc/mtab The one of interest in the case of compiling is the cpu,cpuset. The kernel makefiles don't create or attach to a cgroup, so that would seem to eliminate it as a consideration. There is also a systemd target for cgroups, but it is supposed to be only for services, which compiling wouldn't be. And, there is also a selinux target for cgroups, but it doesn't seem to apply here. So, cgroups seem like another dead end. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
