According to result of command cat /proc/cpuinfo, my Droplet server’s CPU is Intel Xeon E5-2650 v4.
Intel official product site says it has 12 cores/24 threads but the result of cat /proc/cpuinfo is 1 core.
What is correct?
Yes it does have 12c/24t but your droplet only has 1c/1t made available to your droplet. This is a well known virtualization layer trick. This is so droplets can share the server’s hardware more fairly and more efficiently according to their plan resources.
Some plans have 2 cores, for example. So /proc/cpuinfo will show 2 cores.
This is so droplets can share the server’s hardware more fairly and more efficiently according to their plan resources.