I am unsure if lscpu is installed by default, on the servers I have used so far it always seems to be there (even on my Raspberry Pi's).
To list the CPU(s) fitted to a Linux server, use the following:
Here is the output from a server:
Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 48 On-line CPU(s) list: 0-47 Thread(s) per core: 2 Core(s) per socket: 12 Socket(s): 2 NUMA node(s): 2 Vendor ID: GenuineIntel CPU family: 6 Model: 63 Stepping: 2 CPU MHz: 2501.000 BogoMIPS: 4988.08 Virtualization: VT-x L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 30720K NUMA node0 CPU(s): 0-11,24-35 NUMA node1 CPU(s): 12-23,36-47
Here is what it looks like on a Raspberry Pi v3
Architecture: armv7l Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 1 Core(s) per socket: 4 Socket(s): 1 Model name: ARMv7 Processor rev 4 (v7l) CPU max MHz: 1200.0000 CPU min MHz: 600.0000