Date: Thu, 03 Mar 2016 14:51:45 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 173541] load average 0.60 at 100% idle Message-ID: <bug-173541-8-5QW53twCUC@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-173541-8@https.bugs.freebsd.org/bugzilla/> References: <bug-173541-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D173541 --- Comment #14 from smithi@nimnet.asn.au --- The first 40% of the attached is a study of the "0.6" erroneous loadavgs experienced also by others, shown in some detail over long periods at virtually complete idle, plus a number of 100% CPU-bound tasks running. This shows that the oft-mentioned "0.6" figure (seeming randomly variable over a range of ~0.45 to ~0.75, with some outliers even beyond that) is an ADDITIVE increment to real loadavg, for real 100% CPU loads up to here 11. At 40% through this report are applied a pair of cpuset(1) commands, which on this machine completely fix broken loadavgs, permanently until reboot. I'll refrain from further speculation on what might cause this to happen. The rest of the report illustrates the well-behaved nature of HPET-derived loadavgs (both one-shot and periodic) at idle and at real loads of 1, 2, 4 and 11 CPU-bound tasks, after this particulat magic spell has been cast .. Verbose dmesg is also attached. --=20 You are receiving this mail because: You are the assignee for the bug.=
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