Date: Wed, 31 Jan 2018 08:54:21 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 225579] CPU usage in top command not matching with VMWare Host's esxtop command's vCPU output Message-ID: <bug-225579-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D225579 Bug ID: 225579 Summary: CPU usage in top command not matching with VMWare Host's esxtop command's vCPU output Product: Base System Version: 11.0-STABLE Hardware: arm64 OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: nirmalanandj@gmail.com Created attachment 190217 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D190217&action= =3Dedit Schreenshot of top and esxtop with FreeBSD VM 10.3 Hello Experts, VM: FreeBSD 11.0 Stable [Seen with FreeBSD 10.3 stable and lower version as well] Hypervisor : ESX 6.0 (ESXi-6.0.0-20171104001-standard (Build 6921384)) 5 vCPUs are allocated for the VM, 10 GB RAM and 20 GB disk. vCPU pinning is done for the VM. Test Case: A shell script with the following commands: dd if=3D</a_2gb_file> of=3D<an output file> & dd if=3D</a_2gb_file> of=3D<an output file> & dd if=3D</a_2gb_file> of=3D<an output file> & dd if=3D</a_2gb_file> of=3D<an output file> & dd if=3D</a_2gb_file> of=3D<an output file> & The top command output and esxtop command output is attached for FreeBSD VM: Freebsd_VM.jpg If we compare the vCPU IDLE times, there is a difference of around 60%. We would like understand why it is happening and fix it as needed. Few additional notes: - This issue is seen with XenServer 7.1. So issue is hypervisor agnostic. - Another data point, we do not observe similar issue with a Ubuntu VM on t= he same ESX hypervisor. Let us know. Regards, Nirmal --=20 You are receiving this mail because: You are the assignee for the bug.=
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