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Is it possible seller can fake CPU in VPS？
I purchased the KVM QEMU from a seller , do not have reputation but it was low price
It is advertised as Xeon Gold the CPU only 900 MHZ ？ And cpu cores: 4, it should not be 48 cores
processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 60 model name : Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz stepping : 3 microcode : 0xcc cpu MHz : 900.106 cache size : 8192 KB physical id : 0 siblings : 8 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 22 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 ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq 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 cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp md_clear flush_l1d bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs bogomips : 6816.00 clflush size : 64 cache_alignment : 64 address sizes : 39 bits physical, 48 bits virtual power management:
Is it possible the seller has hacked CPU also?
It is common thing here, they will modify firmware of GPU from 10 years ago and sell as RTX 1080.
Comments
It's likely to be frequency scaling, the frequency will be scaled automatically depending on demand basically as a power saver. If you run something CPU intensive you should see it scale to full speed.
CPU cores will be the amount allocated to your VPS, not the total number the node CPU has.
If this VPS is OpenVZ, provider can turn of CPU power, mhz etc but also provider can modify cpu info.(In OpenVZ)
A KVM server like this is a small 'chunk' of a bigger server. That's why you see the four cores.
To get all of those cores would cost far more, and it would be smarter to get a dedicated server.
It is possible to mask the CPU model, but usually they'll just show the generic QEMU one if the hosts are shamefully old (or more legitimately, want to live migrate between different classes of hosts)
I don't think it is possible to write arbitrary text in the CPU model name, at least not without modifying the KVM source code. As is, there are a few options, see the list below. But "Xeon Gold 6252" is not on that list, so seems likely it is real.
maybe run some tests about the unknown on that server of yours first to see what's it all about. I heard @FlamesRunner got something in his sig...
sorry, couldn't resist :-D
Not this again!
@1606234 I wish I could add anything more than what was explained above. But pretty sure your vps package would detail how many cores you were supposed to get allocated and if they are fair share or dedicated to you.
LET community in one sentence
There are actually undocumented (?) modifiers for the processor name, vendor, family, model, and stepping named "model-id", "vendor", "family", "model", and "stepping" respectively that can be added to the CPU definition.
qemu -cpu "whatever,model-id=Super awesome CPU" will set the model name as expected:
On BinaryLane we use it to summarise what feature flags are enabled.
That said, OP's CPU is fine. The host is running powersave governor and the CPU had clocked down to minimum when the VPS booted. The bogomips value would be far lower if it was actually a 900mhz CPU.