By default this is the number of CPUs on the server. Funnelback will
use this value to determine how many threads it should create for some of its
tasks. Setting this to less than the number of available CPUs may reduce the total
CPU load of Funnelback.
Setting the key
Set this configuration key in the server configuration.
Use the configuration key editor to add or edit the server.cpu_count key, and set the value. This can be set to any valid com.funnelback.config.keys.types.ThreadCountOption value.