Total latency for FCP LUN

Hello,  I'm trying to figure out how to get total latency for a FCP LUN. I have following numbers from perfstat:

fc_lif_1: avg_read_latency:1677.41us
fc_lif_1:avg_write_latency:1906.61us
fc_lif_1:avg_other_latency:261.62us

Taking a look at particular LUN-numbers:

lunx:avg_read_latency:1.78ms
lunx:avg_write_latency:2.42ms
lunx:avg_unmap_latency:0ms
lunx:avg_other_latency:0.92ms

Combining FCP lif read latency 1.68ms + LUN read latency 1.78ms, would it be right to say complete FCP latency "inside" the controller is 3.46ms? What I'm trying to get is total time spent when FCP read request arrive at controller and leaves FCP port to user.

EDIT: Does LUN or FCP latency include compression, dedup etc?

Cheers,

Sup