linux FreeBSD v8.1中的/proc/cpuinfo的等价物是什么？

68de4m5k 于 2023-06-29 发布在 Linux

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FreeBSD v8.1上的Linux /proc/cpuinfo的等价物是什么？我的应用程序读取/proc/cpuinfo并将信息保存在日志文件中，我可以做些什么来获得FreeBSD上记录的类似信息？
示例/proc/cpuinfo如下所示：

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

linux

来源：https://stackoverflow.com/questions/4083848/what-is-the-equivalent-of-proc-cpuinfo-on-freebsd-v8-1

6条答案

按热度按时间

baubqpgj1#

我不相信有任何东西像Linux的/proc/cpuinfo一样详细。查看sysctl hw和/var/run/dmesg.boot。大多数信息，如CPU速度和指令集应该在那里的某个地方。
这是我看到的（删除了一些不感兴趣的hw.*字段）：

$ 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在OpenBSD上，CPU速度在hw.cpuspeed中而不是在dmesg中。

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agxfikkp2#

使用dmidecode命令：

# 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
......

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r7xajy2e3#

为了补充jleedev的评论，您可以使用sysctl(3)系统调用从应用程序的内核中获取此信息。请参见CTL_HW顶级名称

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xhv8bpkk4#

如果您对CPU标志感兴趣，还可以查看

dmesg -a | grep Features

或

grep Features /var/run/dmesg.boot

会显示出类似于

Features=0xfebfbff<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>
Features2=0x82982203<SSE3,PCLMULQDQ,SSSE3,CX16,SSE4.1,SSE4.2,POPCNT,
AESNI,<b31>>
AMD Features=0x28100000<NX,RDTSCP,LM>
AMD Features2=0x1<LAHF>

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c8ib6hqw5#

请注意，像CPU特性和各种CPU缓存大小这样的信息并不在sysctl输出中，但它们可以在FreeBSD下的 dmidecode 的输出中找到。

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uoifb46i6#

FreeBSD 11.2
sysctl hw.model
结果：
hw.model: Intel(R) Xeon(R) CPU E5620 @ 2.40GHz

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