bind multi-threaded question

[max power]

Hi
i am deploying a new dns server using bind 9.7.0-p1 the latest version
i am running bind on chroot jail, every thing is working fine
when i use the command rndc status i got the following ,
CPUs found: 8
worker threads: 8
this is right info , however when i try to ps aux | grep named 
i only got one bind process ?
multi-threaded is enabled when compile , but should i find 8 processes when doing ps command or that is normal,
how can i be sure that bind is using 8 threads

thanks in advance
 		 	   		  
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