Does redis bind to CPU cores automatically? -


i have server 32 logical cores(16 physical cores , hyper-thread enabled) , have 8 redis instances on it. seems 16 cores, id 0 7 , 16 23, used , other 16 cores idled. shows cpu affinity mask redis process ffffffff(from taskset -p pid).

so wonder cpu affinity has been set automatically in redis?

thanks

leo

no, redis doesn't set cpu affinity. think misunderstand output of taskset command.

the affinity mask got, i.e. ffffffff, means process might running on of processors. , that's default behavior. can test starting process doesn't set cpu affinity, e.g. vim xxx.conf, , use taskset check mask. should return ffffffff.

in order make process running on specific cpu, can run following command: taskset -pc 0 process_id, i.e. running on 0th processor.


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