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What is the equivalent of Linux's /proc/cpuinfo on FreeBSD v8.1? My application reads /proc/cpuinfo and saves the information in the log file, what could I do to get similar information logged on FreeBSD?
A sample /proc/cpuinfo looks like this:
processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping : 8 cpu MHz : 2499.015 cache size : 6144 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss nx lm constant_tsc pni ds_cpl bogomips : 5004.54 processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping : 8 cpu MHz : 2499.015 cache size : 6144 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss nx lm constant_tsc pni ds_cpl bogomips : 5009.45 
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The file /proc/cpuinfo displays what type of processor your system is running including the number of CPUs present. Here is an example output from cat /proc/cpuinfo of a system.
Introduction: One can obtain the number of CPUs or cores in Linux from the command line. The /proc/cpuinfo file stores CPU and system architecture dependent items, for each supported architecture. You can view /proc/cpuinfo with the help of cat command or grep command/egrep command.
The number of siblings on a processor is the total number of execution units within that processor. This will include both additional cores and hyperthreading. For example, A Core 2 Duo will list siblings : 2 .
I don’t believe there is anything as detailed as Linux’s /proc/cpuinfo. Look into sysctl hw and /var/run/dmesg.boot. Most of the information like CPU speed and instruction sets should be in there somewhere.
This is what I see (with a few uninteresting hw.* fields removed):
$ uname -sr FreeBSD 4.10-RELEASE $ grep -i cpu /var/run/dmesg.boot CPU: Pentium III/Pentium III Xeon/Celeron (448.97-MHz 686-class CPU) $ /sbin/sysctl hw hw.machine: i386 hw.model: Pentium III/Pentium III Xeon/Celeron hw.ncpu: 1 hw.byteorder: 1234 hw.physmem: 665989120 hw.usermem: 604614656 hw.pagesize: 4096 hw.floatingpoint: 1 hw.machine_arch: i386 hw.aac.iosize_max: 65536 hw.an.an_dump: off hw.an.an_cache_mode: dbm hw.an.an_cache_mcastonly: 0 hw.an.an_cache_iponly: 1 hw.fxp_rnr: 0 hw.fxp_noflow: 0 hw.dc_quick: 1 hw.ste.rxsyncs: 0 hw.instruction_sse: 0 hw.availpages: 162432 (Note that on OpenBSD, the cpu speed is found in hw.cpuspeed instead of in dmesg.)
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Use dmidecode command:
# dmidecode -t processor -t cache # dmidecode 3.0 Scanning /dev/mem for entry point. SMBIOS 2.4 present. Handle 0x0004, DMI type 4, 35 bytes Processor Information Socket Designation: LGA 775 Type: Central Processor Family: Pentium 4 Manufacturer: Intel ID: F6 06 00 00 FF FB EB BF Signature: Type 0, Family 6, Model 15, Stepping 6 Flags: FPU (Floating-point unit on-chip) VME (Virtual mode extension) DE (Debugging extension) PSE (Page size extension) TSC (Time stamp counter) MSR (Model specific registers) PAE (Physical address extension) MCE (Machine check exception) CX8 (CMPXCHG8 instruction supported) APIC (On-chip APIC hardware supported) SEP (Fast system call) MTRR (Memory type range registers) PGE (Page global enable) MCA (Machine check architecture) CMOV (Conditional move instruction supported) PAT (Page attribute table) PSE-36 (36-bit page size extension) CLFSH (CLFLUSH instruction supported) DS (Debug store) ACPI (ACPI supported) MMX (MMX technology supported) FXSR (FXSAVE and FXSTOR instructions supported) SSE (Streaming SIMD extensions) SSE2 (Streaming SIMD extensions 2) SS (Self-snoop) HTT (Multi-threading) TM (Thermal monitor supported) PBE (Pending break enabled) Version: Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz Voltage: 1.4 V External Clock: 266 MHz Max Speed: 3800 MHz Current Speed: 2394 MHz Status: Populated, Enabled Upgrade: Other L1 Cache Handle: 0x0005 L2 Cache Handle: 0x0006 L3 Cache Handle: 0x0007 Serial Number: To Be Filled By O.E.M. Asset Tag: To Be Filled By O.E.M. Part Number: To Be Filled By O.E.M. Handle 0x0005, DMI type 7, 19 bytes Cache Information Socket Designation: L1-Cache Configuration: Enabled, Not Socketed, Level 1 Operational Mode: Write Back Location: Internal ...... If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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