Date: Sun, 11 Sep 2016 23:52:15 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-ports-bugs@FreeBSD.org Subject: [Bug 212592] Default MAKE_JOBS_NUMBER should come from cpuset, not kern.smp.cpus Message-ID: <bug-212592-13@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D212592 Bug ID: 212592 Summary: Default MAKE_JOBS_NUMBER should come from cpuset, not kern.smp.cpus Product: Ports & Packages Version: Latest Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: Ports Framework Assignee: portmgr@FreeBSD.org Reporter: cperciva@FreeBSD.org CC: freebsd-ports-bugs@FreeBSD.org The default MAKE_JOBS_NUMBER comes from `sysctl -n kern.smp.cpus`. This is fine in most cases, but if cpuset(1) has been used to limit the CPUs availa= ble, we will end up running too many parallel build steps -- one per CPU present, rather than one per CPU available. Unfortunately cpuset(1) doesn't seem to have an obvious "tell me how many C= PUs I have access to" flag, but something like -_SMP_CPUS!=3D ${SYSCTL} -n kern.smp.cpus +_SMP_CPUS!=3D cpuset -g -p $$ | cut -f 2 -d : | tr , '\n' | wc= -l should probably do the job. (Or, we could just fix cpuset(1) and check OSVERSION to decide whether to query the sysctl or query cpuset.) --=20 You are receiving this mail because: You are on the CC list for the bug.=
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