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Add 100ms latency to Redis port on lo device:
sudo tc qdisc add dev lo root handle 1: prio
sudo tc qdisc add dev lo parent 1:3 handle 30: tbf rate 1000mbit buffer 1000kb latency 1ms
sudo tc qdisc add dev lo parent 30:1 handle 31: netem delay 100ms 20ms distribution normal
sudo tc filter add dev lo protocol ip parent 1:0 prio 3 u32 match ip sport 6379 0xffff flowid 1:3

sudo tc -s qdisc ls dev lo

Delete tc configuration:
sudo tc qdisc del dev lo root