CPU 에서 지원하는 기능 목록
$ cat /proc/cpuinfo
CPU 에서 활성화 된 기능 목록
$ sudo LD_SHOW_AUXV=1 /bin/dd
테스트 결과
VMware player 에서 ubuntu 14.04 LTS / Desktop / 32bit
$ cat /proc/cpuinfo
processor : 5
vendor_id : GenuineIntel
cpu family : 6
model : 58
model name : Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz
stepping : 9
microcode : 0x16
cpu MHz : 3392.449
cache size : 8192 KB
physical id : 1
siblings : 3
core id : 2
cpu cores : 3
apicid : 6
initial apicid : 6
fdiv_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss ht nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology tsc_reliable nonstop_tsc aperfmperf eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt aes xsave avx f16c rdrand hypervisor lahf_lm ida arat epb xsaveopt pln pts dtherm fsgsbase smep
bogomips : 6784.89
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
$ sudo LD_SHOW_AUXV=1 /bin/dd
AT_SYSINFO: 0xb779c414
AT_SYSINFO_EHDR: 0xb779c000
AT_HWCAP: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss ht
AT_PAGESZ: 4096
AT_CLKTCK: 100
AT_PHDR: 0x8048034
AT_PHENT: 32
AT_PHNUM: 9
AT_BASE: 0xb779d000
AT_FLAGS: 0x0
AT_ENTRY: 0x804b8d0
AT_UID: 0
AT_EUID: 0
AT_GID: 0
AT_EGID: 0
AT_SECURE: 0
AT_RANDOM: 0xbfd2cfcb
AT_EXECFN: /bin/dd
AT_PLATFORM: i686
---
native Linux
$ cat /proc/cpuinfo
processor : 7
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz
stepping : 5
cpu MHz : 1600.000
cache size : 8192 KB
physical id : 0
siblings : 8
core id : 3
cpu cores : 4
apicid : 7
initial apicid : 7
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips : 5332.99
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
$ sudo LD_SHOW_AUXV=1 /bin/dd
AT_SYSINFO: 0x333420
AT_SYSINFO_EHDR: 0x333000
AT_HWCAP: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
AT_PAGESZ: 4096
AT_CLKTCK: 100
AT_PHDR: 0x8048034
AT_PHENT: 32
AT_PHNUM: 9
AT_BASE: 0xfc9000
AT_FLAGS: 0x0
AT_ENTRY: 0x8049490
AT_UID: 0
AT_EUID: 0
AT_GID: 0
AT_EGID: 0
AT_SECURE: 0
AT_RANDOM: 0xbff1028b
AT_EXECFN: /bin/dd
AT_PLATFORM: i686
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