If you have avx2 that means the CPU allows AVX2. This identifies the CPU as AVX compatible. One of the cpu flags shows me that I support vmx but not the other. In the CPU flag capabilities, well search for the avx flag. I'm unable to load the kvm_intel module and I have no other clue why this is so. 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 ht tm pbe syscall nx rdtscp lm constanttsc archperfmon pebs bts repgood nopl xtopology nonstoptsc cpuid aperfmperf pni pclmulqdq dtes64 monitor dscpl vmx est tm2 ssse3 cx16 xtpr. I noticed this problem when trying to configure my system for KVM. However, the information we want is in the flags list. flags Defines a number of different processor attributes, such as the presence of a floating-point unit (FPU) and the ability to process MMX instructions. With that said, below are 9 commands for getting info about your Linux CPU. Typing cat /proc/cpuinfo will display the contents of the file and all available information. nutanixcvm cat /proc/cpuinfo grep avx flags : fpu vme de pse tsc msr pae mce cx8. cache size Tells you the amount of level 2 memory cache available to the processor. AVX flag not present in the processor might be indicated due to. Model name : Intel(R) Core(TM)2 CPU E8400 3.00GHzįlags : 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 ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni monitor tm2 ssse3 lahf_lm dtsĪddress sizes : 36 bits physical, 48 bits virtualįlags : 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 ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm dts tpr_shadow vnmi flexpriority flags Defines a number of different processor attributes, such as the presence of a floating-point unit (FPU) and the ability to process MMX instructions. cpu MHz Shows the processor’s precise speed, in megahertz, to the thousandth decimal point. One issue you often face when trying to make sense of the flags given in /proc/cpuinfo is that all the interesting things you can google about a cpu feature. See Wikipedias article on x86 virtualization, for a list of.
#Proc cpuinfo flags code#
Can someone explains to me why? I'm running Ubuntu 10.10 kernel 2.6.35-24-generic. INTEL: VT-x, shows in /proc/cpuinfo as the vmx flag. 'flags' in x86 Linux's /proc/cpuinfo explained Notes on x86 processors Notes on x86 assembly Call graph generation Call stack trace ('backtrace') generation How GCC generates optimized code for printf (and G.
#Proc cpuinfo flags update#
Do we have any changes on the CPU feature flags shown in the outputs from /proc/cpuinfo or lscpu after applying the microcode update IPU 2021.Cat /proc/cpuinfo on my system gives me different flags for my 2 cores. The CPU capabilities stated in /proc/cpuinfo are missing flags which have been reported before, in particular the vmx flag (Intel CPUs), or the svm flag. cat /proc/cpuinfo grep flags 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 ht tm pbe syscall nx rdtscp lm constanttsc archperfmon pebs bts repgood xtopology nonstoptsc aperfmperf pni dtes64 monitor dscpl vmx est tm2 ssse3 cx16 xtpr pdcm sse41 sse42 popcnt lahflm.
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