Date: Mon, 4 Aug 2014 14:53:42 +0300 From: Stefan Parvu <sparvu@systemdatarecorder.org> To: freebsd-hackers@freebsd.org Subject: sysctl hw add nphyscpu variable Message-ID: <20140804145342.2306d7681f0b852908dd4865@systemdatarecorder.org>
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Hi, Would be possible to have under sysctl interface a new variable which will track the number of physical CPU sockets a system has ? Would be useful for hardware and data inventory. Something like: hw.machine: amd64 hw.model: Intel(R) Xeon(R) CPU E5-2640 v2 @ 2.00GHz hw.ncpu: 32 hw.nphyscpu: 2 ^^^^^^^^^^^^ This is an example from my system with two 2 physical CPUs installed. No system virtualization in place, like Xen, etc ... Or is it possible currently to get easily this information ? I havent found one except dmesg information. FreeBSD/SMP: Multiprocessor System Detected: 32 CPUs FreeBSD/SMP: 2 package(s) x 8 core(s) x 2 SMT threads cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 cpu2 (AP): APIC ID: 2 cpu3 (AP): APIC ID: 3 cpu4 (AP): APIC ID: 4 cpu5 (AP): APIC ID: 5 cpu6 (AP): APIC ID: 6 cpu7 (AP): APIC ID: 7 cpu8 (AP): APIC ID: 8 cpu9 (AP): APIC ID: 9 cpu10 (AP): APIC ID: 10 cpu11 (AP): APIC ID: 11 cpu12 (AP): APIC ID: 12 cpu13 (AP): APIC ID: 13 cpu14 (AP): APIC ID: 14 cpu15 (AP): APIC ID: 15 cpu16 (AP): APIC ID: 32 cpu17 (AP): APIC ID: 33 cpu18 (AP): APIC ID: 34 cpu19 (AP): APIC ID: 35 cpu20 (AP): APIC ID: 36 cpu21 (AP): APIC ID: 37 cpu22 (AP): APIC ID: 38 cpu23 (AP): APIC ID: 39 cpu24 (AP): APIC ID: 40 cpu25 (AP): APIC ID: 41 cpu26 (AP): APIC ID: 42 cpu27 (AP): APIC ID: 43 cpu28 (AP): APIC ID: 44 cpu29 (AP): APIC ID: 45 cpu30 (AP): APIC ID: 46 cpu31 (AP): APIC ID: 47 Probable things will get complicated a bit if the system is a guest under Xen or other hypervisor. But probable there the nphyscpu should be NA ? -- Stefan Parvu <sparvu@systemdatarecorder.org>
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