 the queue wait time of the next request and affects
average and tail latencies. The actual tail latency depends on the traffic pattern.</p><h3 id=latency-for-istio-122>Latency for Istio 1.22</h3><p>Inside the mesh, a request traverses the client-side proxy and then the server-side
proxy. In the default ambient mode (with L4) configuration of Istio 1.22,
the two ztunnel proxies add about 0.17 ms and 0.20 ms to the 90th and 99th percentile latency, respectively, over the baseline data plane latency.
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