SMP: AP CPU #3 Launched!

[explorer]

I see the following in dmesg of freebsd. Anybody knows what this mean?
SMP: AP CPU #3 Launched!
SMP: AP CPU #1 Launched!
SMP: AP CPU #2 Launched!

[Kernel_Killer]

It means it has recognized the other 3 CPUs after the first, and is utilizing them (zero isn’t shown in those messages, but in others).

Like this:

CPU: Intel(R) Xeon(R) CPU           E5405  @ 2.00GHz (1995.03-MHz K8-class CPU)
FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs
cpu0: <ACPI CPU> on acpi0
p4tcc0: <CPU Frequency Thermal Control> on cpu0
cpu1: <ACPI CPU> on acpi0
p4tcc1: <CPU Frequency Thermal Control> on cpu1
cpu2: <ACPI CPU> on acpi0
p4tcc2: <CPU Frequency Thermal Control> on cpu2
cpu3: <ACPI CPU> on acpi0
p4tcc3: <CPU Frequency Thermal Control> on cpu3
cpu4: <ACPI CPU> on acpi0
p4tcc4: <CPU Frequency Thermal Control> on cpu4
cpu5: <ACPI CPU> on acpi0
p4tcc5: <CPU Frequency Thermal Control> on cpu5
cpu6: <ACPI CPU> on acpi0
p4tcc6: <CPU Frequency Thermal Control> on cpu6
cpu7: <ACPI CPU> on acpi0
p4tcc7: <CPU Frequency Thermal Control> on cpu7
SMP: AP CPU #3 Launched!
SMP: AP CPU #2 Launched!
SMP: AP CPU #1 Launched!
SMP: AP CPU #7 Launched!
SMP: AP CPU #5 Launched!
SMP: AP CPU #6 Launched!
SMP: AP CPU #4 Launched!