#Usr cpuinfo how to
How to determine number of CPU sockets on my CentOS Linux 7.x List number of cores per CPU for CentOS enterprise Linux ~]# grep cpu.cores /proc/cpuinfo | sort -uįinally, let us print number of logical processors for CentOS ~]# grep processor /proc/cpuinfo | wc -lĪnother option is to run dmidecode ~]# dmidecode -t4 Let us find out number of physical CPUs in your CentOS Linux server, ~]# grep physical.id /proc/cpuinfo | sort -u | wc -l
#Usr cpuinfo Patch
Out the needed patch to cause intel_pstate to create scaling_cur_freq in addition to cpuinfo_cur_freq.Model name: Intel (R ) Xeon (R ) CPU E3-1285L v4 3.40GHzįlags: 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 pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch epb intel_pt ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap xsaveopt dtherm ida arat pln pts spec_ctrl intel_stibp flush_l1d CentOS Linux display CPU informationĪnother option is to type cat ~]# cat /proc/cpuinfoĬentOS Linux show information about my CPU I do not normally work in the kernel and it is taking me some effort to figure Yes, ths impact of this missing functionality is small but I find it useful.
Try running the following as bot a regular user and as a superuser:Īnd you will not that the current frequency is only provided when running as a superuser. In any case, because of the user-space (versus superuser) requirement, cpupower will NOT provide the necessary info. Both of these are user-space programs and to is not practical to use cpupower to get the frequesncies. specifically gkrellm-freq (gkrellm-gkfrew) and xfce4-cpufreq-plugin. The CPU-Z‘s detection engine is now available for customized use through the. Real time measurement of each core's internal frequency, memory frequency. Memory type, size, timings, and module specifications (SPD). While things may be working as designed for power/frequency management on the new Intel processors, the kernel implementation breaks some code. CPU-Z is a freeware that gathers information on some of the main devices of your system : Processor name and number, codename, process, package, cache levels. I intend to turn in a bug report upstream after I have done some additional research.
#Usr cpuinfo code
Suggestion: add code to have scaling_cur_freq created OR make access to cpuinfo_cur_freq 444 I can understand the reasoning for making access to cpuinfo_cur_freq restricted to superuser but it does seem to me to be more than a bit overly paranoid. Version-Release number of selected component (if applicable):
Is NOT created and monitors such as gkrellm-freq do not work. sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq If the processor in the system is a more modern one from Intel such as the Haswell i5-4770S or the i7-4770, then Which can be used to obtain this info BUT it DOES require superuser access. sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq This is done in user-space and does not require superuser access. To obtain the current frequencies being used. sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq Gkrellm-freq (and I believe xfce4-cpufreq-plugin) use
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