diff --git a/content/en/docs/reference/commands/install-cni/index.html b/content/en/docs/reference/commands/install-cni/index.html
index a9d4b9bc8a..479f3620c2 100644
--- a/content/en/docs/reference/commands/install-cni/index.html
+++ b/content/en/docs/reference/commands/install-cni/index.html
@@ -804,6 +804,12 @@ These environment variables affect the behavior of the <code>install-cni</code>
 <td>If true, Istio will enable the Dual Stack feature.</td>
 </tr>
 <tr>
+<td><code>ISTIO_ENABLE_CONTROLLER_QUEUE_METRICS</code></td>
+<td>Boolean</td>
+<td><code>false</code></td>
+<td>If enabled, publishes metrics for queue depth, latency and processing times.</td>
+</tr>
+<tr>
 <td><code>ISTIO_ENABLE_OPTIMIZED_SERVICE_PUSH</code></td>
 <td>Boolean</td>
 <td><code>true</code></td>
diff --git a/content/en/docs/reference/commands/istioctl/index.html b/content/en/docs/reference/commands/istioctl/index.html
index 1686694093..50f0515413 100644
--- a/content/en/docs/reference/commands/istioctl/index.html
+++ b/content/en/docs/reference/commands/istioctl/index.html
@@ -7092,6 +7092,12 @@ These environment variables affect the behavior of the <code>istioctl</code> com
 <td>If true, Istio will enable the Dual Stack feature.</td>
 </tr>
 <tr>
+<td><code>ISTIO_ENABLE_CONTROLLER_QUEUE_METRICS</code></td>
+<td>Boolean</td>
+<td><code>false</code></td>
+<td>If enabled, publishes metrics for queue depth, latency and processing times.</td>
+</tr>
+<tr>
 <td><code>ISTIO_ENABLE_HTTP2_PROBING</code></td>
 <td>Boolean</td>
 <td><code>true</code></td>
@@ -7754,6 +7760,9 @@ These environment variables affect the behavior of the <code>istioctl</code> com
 <tr><td><code>pilot_total_xds_rejects</code></td><td><code>Sum</code></td><td>Total number of XDS responses from pilot rejected by proxy.</td></tr>
 <tr><td><code>pilot_virt_services</code></td><td><code>LastValue</code></td><td>Total virtual services known to pilot.</td></tr>
 <tr><td><code>pilot_vservice_dup_domain</code></td><td><code>LastValue</code></td><td>Virtual services with dup domains.</td></tr>
+<tr><td><code>pilot_worker_queue_depth</code></td><td><code>LastValue</code></td><td>Depth of the controller queues</td></tr>
+<tr><td><code>pilot_worker_queue_duration</code></td><td><code>Distribution</code></td><td>Time taken to process an item</td></tr>
+<tr><td><code>pilot_worker_queue_latency</code></td><td><code>Distribution</code></td><td>Latency before the item is processed</td></tr>
 <tr><td><code>pilot_xds</code></td><td><code>LastValue</code></td><td>Number of endpoints connected to this pilot using XDS.</td></tr>
 <tr><td><code>pilot_xds_cds_reject</code></td><td><code>LastValue</code></td><td>Pilot rejected CDS configs.</td></tr>
 <tr><td><code>pilot_xds_config_size_bytes</code></td><td><code>Distribution</code></td><td>Distribution of configuration sizes pushed to clients</td></tr>
diff --git a/content/en/docs/reference/commands/operator/index.html b/content/en/docs/reference/commands/operator/index.html
index 73c32b153b..a6fd198e8c 100644
--- a/content/en/docs/reference/commands/operator/index.html
+++ b/content/en/docs/reference/commands/operator/index.html
@@ -503,6 +503,12 @@ These environment variables affect the behavior of the <code>operator</code> com
 <td>If true, Istio will enable the Dual Stack feature.</td>
 </tr>
 <tr>
+<td><code>ISTIO_ENABLE_CONTROLLER_QUEUE_METRICS</code></td>
+<td>Boolean</td>
+<td><code>false</code></td>
+<td>If enabled, publishes metrics for queue depth, latency and processing times.</td>
+</tr>
+<tr>
 <td><code>ISTIO_ENABLE_HTTP2_PROBING</code></td>
 <td>Boolean</td>
 <td><code>true</code></td>
@@ -1165,6 +1171,9 @@ These environment variables affect the behavior of the <code>operator</code> com
 <tr><td><code>pilot_total_xds_rejects</code></td><td><code>Sum</code></td><td>Total number of XDS responses from pilot rejected by proxy.</td></tr>
 <tr><td><code>pilot_virt_services</code></td><td><code>LastValue</code></td><td>Total virtual services known to pilot.</td></tr>
 <tr><td><code>pilot_vservice_dup_domain</code></td><td><code>LastValue</code></td><td>Virtual services with dup domains.</td></tr>
+<tr><td><code>pilot_worker_queue_depth</code></td><td><code>LastValue</code></td><td>Depth of the controller queues</td></tr>
+<tr><td><code>pilot_worker_queue_duration</code></td><td><code>Distribution</code></td><td>Time taken to process an item</td></tr>
+<tr><td><code>pilot_worker_queue_latency</code></td><td><code>Distribution</code></td><td>Latency before the item is processed</td></tr>
 <tr><td><code>pilot_xds</code></td><td><code>LastValue</code></td><td>Number of endpoints connected to this pilot using XDS.</td></tr>
 <tr><td><code>pilot_xds_cds_reject</code></td><td><code>LastValue</code></td><td>Pilot rejected CDS configs.</td></tr>
 <tr><td><code>pilot_xds_config_size_bytes</code></td><td><code>Distribution</code></td><td>Distribution of configuration sizes pushed to clients</td></tr>
diff --git a/content/en/docs/reference/commands/pilot-agent/index.html b/content/en/docs/reference/commands/pilot-agent/index.html
index 350e49cce7..9d48bebc40 100644
--- a/content/en/docs/reference/commands/pilot-agent/index.html
+++ b/content/en/docs/reference/commands/pilot-agent/index.html
@@ -500,17 +500,17 @@ to enable it.  You can execute the following once:</p>
 <tr>
 <td><code>--drop-invalid</code></td>
 <td></td>
-<td>Enable invalid drop in the iptables rules </td>
+<td>Enable invalid drop in the iptables rules. </td>
 </tr>
 <tr>
 <td><code>--dry-run</code></td>
 <td><code>-n</code></td>
-<td>Do not call any external dependencies like iptables </td>
+<td>Do not call any external dependencies like iptables. </td>
 </tr>
 <tr>
 <td><code>--envoy-port &lt;string&gt;</code></td>
 <td><code>-p</code></td>
-<td>Specify the envoy port to which redirect all TCP traffic (default $ENVOY_PORT = 15001)  (default ``)</td>
+<td>Specify the envoy port to which redirect all TCP traffic (default $ENVOY_PORT = 15001).  (default ``)</td>
 </tr>
 <tr>
 <td><code>--host-nsenter-exec</code></td>
@@ -520,17 +520,17 @@ to enable it.  You can execute the following once:</p>
 <tr>
 <td><code>--inbound-capture-port &lt;string&gt;</code></td>
 <td><code>-z</code></td>
-<td>Port to which all inbound TCP traffic to the pod/VM should be redirected to (default $INBOUND_CAPTURE_PORT = 15006)  (default ``)</td>
+<td>Port to which all inbound TCP traffic to the pod/VM should be redirected to (default $INBOUND_CAPTURE_PORT = 15006).  (default ``)</td>
 </tr>
 <tr>
 <td><code>--inbound-tunnel-port &lt;string&gt;</code></td>
 <td><code>-e</code></td>
-<td>Specify the istio tunnel port for inbound tcp traffic (default $INBOUND_TUNNEL_PORT = 15008)  (default ``)</td>
+<td>Specify the istio tunnel port for inbound tcp traffic (default $INBOUND_TUNNEL_PORT = 15008).  (default ``)</td>
 </tr>
 <tr>
 <td><code>--iptables-probe-port &lt;string&gt;</code></td>
 <td></td>
-<td>set listen port for failure detection  (default `15002`)</td>
+<td>Set listen port for failure detection.  (default `15002`)</td>
 </tr>
 <tr>
 <td><code>--iptables-trace-logging</code></td>
@@ -540,17 +540,17 @@ to enable it.  You can execute the following once:</p>
 <tr>
 <td><code>--istio-exclude-interfaces &lt;string&gt;</code></td>
 <td><code>-c</code></td>
-<td>Comma separated list of NIC (optional). Neither inbound nor outbound traffic will be captured  (default ``)</td>
+<td>Comma separated list of NIC (optional). Neither inbound nor outbound traffic will be captured.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-inbound-interception-mode &lt;string&gt;</code></td>
 <td><code>-m</code></td>
-<td>The mode used to redirect inbound connections to Envoy, either &#34;REDIRECT&#34; or &#34;TPROXY&#34;  (default ``)</td>
+<td>The mode used to redirect inbound connections to Envoy, either &#34;REDIRECT&#34; or &#34;TPROXY&#34;.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-inbound-ports &lt;string&gt;</code></td>
 <td><code>-b</code></td>
-<td>Comma separated list of inbound ports for which traffic is to be redirected to Envoy (optional). The wildcard character &#34;*&#34; can be used to configure redirection for all ports. An empty list will disable  (default ``)</td>
+<td>Comma separated list of inbound ports for which traffic is to be redirected to Envoy (optional). The wildcard character &#34;*&#34; can be used to configure redirection for all ports. An empty list will disable.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-inbound-tproxy-mark &lt;string&gt;</code></td>
@@ -565,32 +565,32 @@ to enable it.  You can execute the following once:</p>
 <tr>
 <td><code>--istio-local-exclude-ports &lt;string&gt;</code></td>
 <td><code>-d</code></td>
-<td>Comma separated list of inbound ports to be excluded from redirection to Envoy (optional). Only applies when all inbound traffic (i.e. &#34;*&#34;) is being redirected (default to $ISTIO_LOCAL_EXCLUDE_PORTS)  (default ``)</td>
+<td>Comma separated list of inbound ports to be excluded from redirection to Envoy (optional). Only applies when all inbound traffic (i.e. &#34;*&#34;) is being redirected (default to $ISTIO_LOCAL_EXCLUDE_PORTS).  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-local-outbound-ports-exclude &lt;string&gt;</code></td>
 <td><code>-o</code></td>
-<td>Comma separated list of outbound ports to be excluded from redirection to Envoy  (default ``)</td>
+<td>Comma separated list of outbound ports to be excluded from redirection to Envoy.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-outbound-ports &lt;string&gt;</code></td>
 <td><code>-q</code></td>
-<td>Comma separated list of outbound ports to be explicitly included for redirection to Envoy  (default ``)</td>
+<td>Comma separated list of outbound ports to be explicitly included for redirection to Envoy.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-service-cidr &lt;string&gt;</code></td>
 <td><code>-i</code></td>
-<td>Comma separated list of IP ranges in CIDR form to redirect to envoy (optional). The wildcard character &#34;*&#34; can be used to redirect all outbound traffic. An empty list will disable all outbound  (default ``)</td>
+<td>Comma separated list of IP ranges in CIDR form to redirect to envoy (optional). The wildcard character &#34;*&#34; can be used to redirect all outbound traffic. An empty list will disable all outbound.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-service-exclude-cidr &lt;string&gt;</code></td>
 <td><code>-x</code></td>
-<td>Comma separated list of IP ranges in CIDR form to be excluded from redirection. Only applies when all  outbound traffic (i.e. &#34;*&#34;) is being redirected (default to $ISTIO_SERVICE_EXCLUDE_CIDR)  (default ``)</td>
+<td>Comma separated list of IP ranges in CIDR form to be excluded from redirection. Only applies when all  outbound traffic (i.e. &#34;*&#34;) is being redirected (default to $ISTIO_SERVICE_EXCLUDE_CIDR).  (default ``)</td>
 </tr>
 <tr>
 <td><code>--kube-virt-interfaces &lt;string&gt;</code></td>
 <td><code>-k</code></td>
-<td>Comma separated list of virtual interfaces whose inbound traffic (from VM) will be treated as outbound  (default ``)</td>
+<td>Comma separated list of virtual interfaces whose inbound traffic (from VM) will be treated as outbound.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--log_as_json</code></td>
@@ -645,37 +645,37 @@ to enable it.  You can execute the following once:</p>
 <tr>
 <td><code>--probe-timeout &lt;duration&gt;</code></td>
 <td></td>
-<td>failure detection timeout  (default `5s`)</td>
+<td>Failure detection timeout.  (default `5s`)</td>
 </tr>
 <tr>
 <td><code>--proxy-gid &lt;string&gt;</code></td>
 <td><code>-g</code></td>
-<td>Specify the GID of the user for which the redirection is not applied. (same default value as -u param)  (default ``)</td>
+<td>Specify the GID of the user for which the redirection is not applied (same default value as -u param).  (default ``)</td>
 </tr>
 <tr>
 <td><code>--proxy-uid &lt;string&gt;</code></td>
 <td><code>-u</code></td>
-<td>Specify the UID of the user for which the redirection is not applied. Typically, this is the UID of the proxy container  (default ``)</td>
+<td>Specify the UID of the user for which the redirection is not applied. Typically, this is the UID of the proxy container.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--redirect-dns</code></td>
 <td></td>
-<td>Enable capture of dns traffic by istio-agent </td>
+<td>Enable capture of dns traffic by istio-agent. </td>
 </tr>
 <tr>
 <td><code>--restore-format</code></td>
 <td><code>-f</code></td>
-<td>Print iptables rules in iptables-restore interpretable format </td>
+<td>Print iptables rules in iptables-restore interpretable format. </td>
 </tr>
 <tr>
 <td><code>--run-validation</code></td>
 <td></td>
-<td>Validate iptables </td>
+<td>Validate iptables. </td>
 </tr>
 <tr>
 <td><code>--skip-rule-apply</code></td>
 <td></td>
-<td>Skip iptables apply </td>
+<td>Skip iptables apply. </td>
 </tr>
 <tr>
 <td><code>--vklog &lt;Level&gt;</code></td>
@@ -1352,6 +1352,12 @@ These environment variables affect the behavior of the <code>pilot-agent</code>
 <td>If true, Istio will enable the Dual Stack feature.</td>
 </tr>
 <tr>
+<td><code>ISTIO_ENABLE_CONTROLLER_QUEUE_METRICS</code></td>
+<td>Boolean</td>
+<td><code>false</code></td>
+<td>If enabled, publishes metrics for queue depth, latency and processing times.</td>
+</tr>
+<tr>
 <td><code>ISTIO_ENABLE_HTTP2_PROBING</code></td>
 <td>Boolean</td>
 <td><code>true</code></td>
@@ -2202,6 +2208,9 @@ Only applies when traffic from all groups (i.e. &#34;*&#34;) is being redirected
 <tr><td><code>pilot_total_xds_rejects</code></td><td><code>Sum</code></td><td>Total number of XDS responses from pilot rejected by proxy.</td></tr>
 <tr><td><code>pilot_virt_services</code></td><td><code>LastValue</code></td><td>Total virtual services known to pilot.</td></tr>
 <tr><td><code>pilot_vservice_dup_domain</code></td><td><code>LastValue</code></td><td>Virtual services with dup domains.</td></tr>
+<tr><td><code>pilot_worker_queue_depth</code></td><td><code>LastValue</code></td><td>Depth of the controller queues</td></tr>
+<tr><td><code>pilot_worker_queue_duration</code></td><td><code>Distribution</code></td><td>Time taken to process an item</td></tr>
+<tr><td><code>pilot_worker_queue_latency</code></td><td><code>Distribution</code></td><td>Latency before the item is processed</td></tr>
 <tr><td><code>pilot_xds</code></td><td><code>LastValue</code></td><td>Number of endpoints connected to this pilot using XDS.</td></tr>
 <tr><td><code>pilot_xds_cds_reject</code></td><td><code>LastValue</code></td><td>Pilot rejected CDS configs.</td></tr>
 <tr><td><code>pilot_xds_config_size_bytes</code></td><td><code>Distribution</code></td><td>Distribution of configuration sizes pushed to clients</td></tr>
diff --git a/content/en/docs/reference/commands/pilot-discovery/index.html b/content/en/docs/reference/commands/pilot-discovery/index.html
index 346f681b22..602b3d799d 100644
--- a/content/en/docs/reference/commands/pilot-discovery/index.html
+++ b/content/en/docs/reference/commands/pilot-discovery/index.html
@@ -671,6 +671,12 @@ These environment variables affect the behavior of the <code>pilot-discovery</co
 <td>If true, Istio will enable the Dual Stack feature.</td>
 </tr>
 <tr>
+<td><code>ISTIO_ENABLE_CONTROLLER_QUEUE_METRICS</code></td>
+<td>Boolean</td>
+<td><code>false</code></td>
+<td>If enabled, publishes metrics for queue depth, latency and processing times.</td>
+</tr>
+<tr>
 <td><code>ISTIO_ENABLE_HTTP2_PROBING</code></td>
 <td>Boolean</td>
 <td><code>true</code></td>
@@ -1394,6 +1400,9 @@ These environment variables affect the behavior of the <code>pilot-discovery</co
 <tr><td><code>pilot_total_xds_rejects</code></td><td><code>Sum</code></td><td>Total number of XDS responses from pilot rejected by proxy.</td></tr>
 <tr><td><code>pilot_virt_services</code></td><td><code>LastValue</code></td><td>Total virtual services known to pilot.</td></tr>
 <tr><td><code>pilot_vservice_dup_domain</code></td><td><code>LastValue</code></td><td>Virtual services with dup domains.</td></tr>
+<tr><td><code>pilot_worker_queue_depth</code></td><td><code>LastValue</code></td><td>Depth of the controller queues</td></tr>
+<tr><td><code>pilot_worker_queue_duration</code></td><td><code>Distribution</code></td><td>Time taken to process an item</td></tr>
+<tr><td><code>pilot_worker_queue_latency</code></td><td><code>Distribution</code></td><td>Latency before the item is processed</td></tr>
 <tr><td><code>pilot_xds</code></td><td><code>LastValue</code></td><td>Number of endpoints connected to this pilot using XDS.</td></tr>
 <tr><td><code>pilot_xds_cds_reject</code></td><td><code>LastValue</code></td><td>Pilot rejected CDS configs.</td></tr>
 <tr><td><code>pilot_xds_config_size_bytes</code></td><td><code>Distribution</code></td><td>Distribution of configuration sizes pushed to clients</td></tr>
diff --git a/content/zh/docs/reference/commands/install-cni/index.html b/content/zh/docs/reference/commands/install-cni/index.html
index a9d4b9bc8a..479f3620c2 100644
--- a/content/zh/docs/reference/commands/install-cni/index.html
+++ b/content/zh/docs/reference/commands/install-cni/index.html
@@ -804,6 +804,12 @@ These environment variables affect the behavior of the <code>install-cni</code>
 <td>If true, Istio will enable the Dual Stack feature.</td>
 </tr>
 <tr>
+<td><code>ISTIO_ENABLE_CONTROLLER_QUEUE_METRICS</code></td>
+<td>Boolean</td>
+<td><code>false</code></td>
+<td>If enabled, publishes metrics for queue depth, latency and processing times.</td>
+</tr>
+<tr>
 <td><code>ISTIO_ENABLE_OPTIMIZED_SERVICE_PUSH</code></td>
 <td>Boolean</td>
 <td><code>true</code></td>
diff --git a/content/zh/docs/reference/commands/istioctl/index.html b/content/zh/docs/reference/commands/istioctl/index.html
index 1686694093..50f0515413 100644
--- a/content/zh/docs/reference/commands/istioctl/index.html
+++ b/content/zh/docs/reference/commands/istioctl/index.html
@@ -7092,6 +7092,12 @@ These environment variables affect the behavior of the <code>istioctl</code> com
 <td>If true, Istio will enable the Dual Stack feature.</td>
 </tr>
 <tr>
+<td><code>ISTIO_ENABLE_CONTROLLER_QUEUE_METRICS</code></td>
+<td>Boolean</td>
+<td><code>false</code></td>
+<td>If enabled, publishes metrics for queue depth, latency and processing times.</td>
+</tr>
+<tr>
 <td><code>ISTIO_ENABLE_HTTP2_PROBING</code></td>
 <td>Boolean</td>
 <td><code>true</code></td>
@@ -7754,6 +7760,9 @@ These environment variables affect the behavior of the <code>istioctl</code> com
 <tr><td><code>pilot_total_xds_rejects</code></td><td><code>Sum</code></td><td>Total number of XDS responses from pilot rejected by proxy.</td></tr>
 <tr><td><code>pilot_virt_services</code></td><td><code>LastValue</code></td><td>Total virtual services known to pilot.</td></tr>
 <tr><td><code>pilot_vservice_dup_domain</code></td><td><code>LastValue</code></td><td>Virtual services with dup domains.</td></tr>
+<tr><td><code>pilot_worker_queue_depth</code></td><td><code>LastValue</code></td><td>Depth of the controller queues</td></tr>
+<tr><td><code>pilot_worker_queue_duration</code></td><td><code>Distribution</code></td><td>Time taken to process an item</td></tr>
+<tr><td><code>pilot_worker_queue_latency</code></td><td><code>Distribution</code></td><td>Latency before the item is processed</td></tr>
 <tr><td><code>pilot_xds</code></td><td><code>LastValue</code></td><td>Number of endpoints connected to this pilot using XDS.</td></tr>
 <tr><td><code>pilot_xds_cds_reject</code></td><td><code>LastValue</code></td><td>Pilot rejected CDS configs.</td></tr>
 <tr><td><code>pilot_xds_config_size_bytes</code></td><td><code>Distribution</code></td><td>Distribution of configuration sizes pushed to clients</td></tr>
diff --git a/content/zh/docs/reference/commands/operator/index.html b/content/zh/docs/reference/commands/operator/index.html
index 73c32b153b..a6fd198e8c 100644
--- a/content/zh/docs/reference/commands/operator/index.html
+++ b/content/zh/docs/reference/commands/operator/index.html
@@ -503,6 +503,12 @@ These environment variables affect the behavior of the <code>operator</code> com
 <td>If true, Istio will enable the Dual Stack feature.</td>
 </tr>
 <tr>
+<td><code>ISTIO_ENABLE_CONTROLLER_QUEUE_METRICS</code></td>
+<td>Boolean</td>
+<td><code>false</code></td>
+<td>If enabled, publishes metrics for queue depth, latency and processing times.</td>
+</tr>
+<tr>
 <td><code>ISTIO_ENABLE_HTTP2_PROBING</code></td>
 <td>Boolean</td>
 <td><code>true</code></td>
@@ -1165,6 +1171,9 @@ These environment variables affect the behavior of the <code>operator</code> com
 <tr><td><code>pilot_total_xds_rejects</code></td><td><code>Sum</code></td><td>Total number of XDS responses from pilot rejected by proxy.</td></tr>
 <tr><td><code>pilot_virt_services</code></td><td><code>LastValue</code></td><td>Total virtual services known to pilot.</td></tr>
 <tr><td><code>pilot_vservice_dup_domain</code></td><td><code>LastValue</code></td><td>Virtual services with dup domains.</td></tr>
+<tr><td><code>pilot_worker_queue_depth</code></td><td><code>LastValue</code></td><td>Depth of the controller queues</td></tr>
+<tr><td><code>pilot_worker_queue_duration</code></td><td><code>Distribution</code></td><td>Time taken to process an item</td></tr>
+<tr><td><code>pilot_worker_queue_latency</code></td><td><code>Distribution</code></td><td>Latency before the item is processed</td></tr>
 <tr><td><code>pilot_xds</code></td><td><code>LastValue</code></td><td>Number of endpoints connected to this pilot using XDS.</td></tr>
 <tr><td><code>pilot_xds_cds_reject</code></td><td><code>LastValue</code></td><td>Pilot rejected CDS configs.</td></tr>
 <tr><td><code>pilot_xds_config_size_bytes</code></td><td><code>Distribution</code></td><td>Distribution of configuration sizes pushed to clients</td></tr>
diff --git a/content/zh/docs/reference/commands/pilot-agent/index.html b/content/zh/docs/reference/commands/pilot-agent/index.html
index 350e49cce7..9d48bebc40 100644
--- a/content/zh/docs/reference/commands/pilot-agent/index.html
+++ b/content/zh/docs/reference/commands/pilot-agent/index.html
@@ -500,17 +500,17 @@ to enable it.  You can execute the following once:</p>
 <tr>
 <td><code>--drop-invalid</code></td>
 <td></td>
-<td>Enable invalid drop in the iptables rules </td>
+<td>Enable invalid drop in the iptables rules. </td>
 </tr>
 <tr>
 <td><code>--dry-run</code></td>
 <td><code>-n</code></td>
-<td>Do not call any external dependencies like iptables </td>
+<td>Do not call any external dependencies like iptables. </td>
 </tr>
 <tr>
 <td><code>--envoy-port &lt;string&gt;</code></td>
 <td><code>-p</code></td>
-<td>Specify the envoy port to which redirect all TCP traffic (default $ENVOY_PORT = 15001)  (default ``)</td>
+<td>Specify the envoy port to which redirect all TCP traffic (default $ENVOY_PORT = 15001).  (default ``)</td>
 </tr>
 <tr>
 <td><code>--host-nsenter-exec</code></td>
@@ -520,17 +520,17 @@ to enable it.  You can execute the following once:</p>
 <tr>
 <td><code>--inbound-capture-port &lt;string&gt;</code></td>
 <td><code>-z</code></td>
-<td>Port to which all inbound TCP traffic to the pod/VM should be redirected to (default $INBOUND_CAPTURE_PORT = 15006)  (default ``)</td>
+<td>Port to which all inbound TCP traffic to the pod/VM should be redirected to (default $INBOUND_CAPTURE_PORT = 15006).  (default ``)</td>
 </tr>
 <tr>
 <td><code>--inbound-tunnel-port &lt;string&gt;</code></td>
 <td><code>-e</code></td>
-<td>Specify the istio tunnel port for inbound tcp traffic (default $INBOUND_TUNNEL_PORT = 15008)  (default ``)</td>
+<td>Specify the istio tunnel port for inbound tcp traffic (default $INBOUND_TUNNEL_PORT = 15008).  (default ``)</td>
 </tr>
 <tr>
 <td><code>--iptables-probe-port &lt;string&gt;</code></td>
 <td></td>
-<td>set listen port for failure detection  (default `15002`)</td>
+<td>Set listen port for failure detection.  (default `15002`)</td>
 </tr>
 <tr>
 <td><code>--iptables-trace-logging</code></td>
@@ -540,17 +540,17 @@ to enable it.  You can execute the following once:</p>
 <tr>
 <td><code>--istio-exclude-interfaces &lt;string&gt;</code></td>
 <td><code>-c</code></td>
-<td>Comma separated list of NIC (optional). Neither inbound nor outbound traffic will be captured  (default ``)</td>
+<td>Comma separated list of NIC (optional). Neither inbound nor outbound traffic will be captured.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-inbound-interception-mode &lt;string&gt;</code></td>
 <td><code>-m</code></td>
-<td>The mode used to redirect inbound connections to Envoy, either &#34;REDIRECT&#34; or &#34;TPROXY&#34;  (default ``)</td>
+<td>The mode used to redirect inbound connections to Envoy, either &#34;REDIRECT&#34; or &#34;TPROXY&#34;.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-inbound-ports &lt;string&gt;</code></td>
 <td><code>-b</code></td>
-<td>Comma separated list of inbound ports for which traffic is to be redirected to Envoy (optional). The wildcard character &#34;*&#34; can be used to configure redirection for all ports. An empty list will disable  (default ``)</td>
+<td>Comma separated list of inbound ports for which traffic is to be redirected to Envoy (optional). The wildcard character &#34;*&#34; can be used to configure redirection for all ports. An empty list will disable.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-inbound-tproxy-mark &lt;string&gt;</code></td>
@@ -565,32 +565,32 @@ to enable it.  You can execute the following once:</p>
 <tr>
 <td><code>--istio-local-exclude-ports &lt;string&gt;</code></td>
 <td><code>-d</code></td>
-<td>Comma separated list of inbound ports to be excluded from redirection to Envoy (optional). Only applies when all inbound traffic (i.e. &#34;*&#34;) is being redirected (default to $ISTIO_LOCAL_EXCLUDE_PORTS)  (default ``)</td>
+<td>Comma separated list of inbound ports to be excluded from redirection to Envoy (optional). Only applies when all inbound traffic (i.e. &#34;*&#34;) is being redirected (default to $ISTIO_LOCAL_EXCLUDE_PORTS).  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-local-outbound-ports-exclude &lt;string&gt;</code></td>
 <td><code>-o</code></td>
-<td>Comma separated list of outbound ports to be excluded from redirection to Envoy  (default ``)</td>
+<td>Comma separated list of outbound ports to be excluded from redirection to Envoy.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-outbound-ports &lt;string&gt;</code></td>
 <td><code>-q</code></td>
-<td>Comma separated list of outbound ports to be explicitly included for redirection to Envoy  (default ``)</td>
+<td>Comma separated list of outbound ports to be explicitly included for redirection to Envoy.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-service-cidr &lt;string&gt;</code></td>
 <td><code>-i</code></td>
-<td>Comma separated list of IP ranges in CIDR form to redirect to envoy (optional). The wildcard character &#34;*&#34; can be used to redirect all outbound traffic. An empty list will disable all outbound  (default ``)</td>
+<td>Comma separated list of IP ranges in CIDR form to redirect to envoy (optional). The wildcard character &#34;*&#34; can be used to redirect all outbound traffic. An empty list will disable all outbound.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--istio-service-exclude-cidr &lt;string&gt;</code></td>
 <td><code>-x</code></td>
-<td>Comma separated list of IP ranges in CIDR form to be excluded from redirection. Only applies when all  outbound traffic (i.e. &#34;*&#34;) is being redirected (default to $ISTIO_SERVICE_EXCLUDE_CIDR)  (default ``)</td>
+<td>Comma separated list of IP ranges in CIDR form to be excluded from redirection. Only applies when all  outbound traffic (i.e. &#34;*&#34;) is being redirected (default to $ISTIO_SERVICE_EXCLUDE_CIDR).  (default ``)</td>
 </tr>
 <tr>
 <td><code>--kube-virt-interfaces &lt;string&gt;</code></td>
 <td><code>-k</code></td>
-<td>Comma separated list of virtual interfaces whose inbound traffic (from VM) will be treated as outbound  (default ``)</td>
+<td>Comma separated list of virtual interfaces whose inbound traffic (from VM) will be treated as outbound.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--log_as_json</code></td>
@@ -645,37 +645,37 @@ to enable it.  You can execute the following once:</p>
 <tr>
 <td><code>--probe-timeout &lt;duration&gt;</code></td>
 <td></td>
-<td>failure detection timeout  (default `5s`)</td>
+<td>Failure detection timeout.  (default `5s`)</td>
 </tr>
 <tr>
 <td><code>--proxy-gid &lt;string&gt;</code></td>
 <td><code>-g</code></td>
-<td>Specify the GID of the user for which the redirection is not applied. (same default value as -u param)  (default ``)</td>
+<td>Specify the GID of the user for which the redirection is not applied (same default value as -u param).  (default ``)</td>
 </tr>
 <tr>
 <td><code>--proxy-uid &lt;string&gt;</code></td>
 <td><code>-u</code></td>
-<td>Specify the UID of the user for which the redirection is not applied. Typically, this is the UID of the proxy container  (default ``)</td>
+<td>Specify the UID of the user for which the redirection is not applied. Typically, this is the UID of the proxy container.  (default ``)</td>
 </tr>
 <tr>
 <td><code>--redirect-dns</code></td>
 <td></td>
-<td>Enable capture of dns traffic by istio-agent </td>
+<td>Enable capture of dns traffic by istio-agent. </td>
 </tr>
 <tr>
 <td><code>--restore-format</code></td>
 <td><code>-f</code></td>
-<td>Print iptables rules in iptables-restore interpretable format </td>
+<td>Print iptables rules in iptables-restore interpretable format. </td>
 </tr>
 <tr>
 <td><code>--run-validation</code></td>
 <td></td>
-<td>Validate iptables </td>
+<td>Validate iptables. </td>
 </tr>
 <tr>
 <td><code>--skip-rule-apply</code></td>
 <td></td>
-<td>Skip iptables apply </td>
+<td>Skip iptables apply. </td>
 </tr>
 <tr>
 <td><code>--vklog &lt;Level&gt;</code></td>
@@ -1352,6 +1352,12 @@ These environment variables affect the behavior of the <code>pilot-agent</code>
 <td>If true, Istio will enable the Dual Stack feature.</td>
 </tr>
 <tr>
+<td><code>ISTIO_ENABLE_CONTROLLER_QUEUE_METRICS</code></td>
+<td>Boolean</td>
+<td><code>false</code></td>
+<td>If enabled, publishes metrics for queue depth, latency and processing times.</td>
+</tr>
+<tr>
 <td><code>ISTIO_ENABLE_HTTP2_PROBING</code></td>
 <td>Boolean</td>
 <td><code>true</code></td>
@@ -2202,6 +2208,9 @@ Only applies when traffic from all groups (i.e. &#34;*&#34;) is being redirected
 <tr><td><code>pilot_total_xds_rejects</code></td><td><code>Sum</code></td><td>Total number of XDS responses from pilot rejected by proxy.</td></tr>
 <tr><td><code>pilot_virt_services</code></td><td><code>LastValue</code></td><td>Total virtual services known to pilot.</td></tr>
 <tr><td><code>pilot_vservice_dup_domain</code></td><td><code>LastValue</code></td><td>Virtual services with dup domains.</td></tr>
+<tr><td><code>pilot_worker_queue_depth</code></td><td><code>LastValue</code></td><td>Depth of the controller queues</td></tr>
+<tr><td><code>pilot_worker_queue_duration</code></td><td><code>Distribution</code></td><td>Time taken to process an item</td></tr>
+<tr><td><code>pilot_worker_queue_latency</code></td><td><code>Distribution</code></td><td>Latency before the item is processed</td></tr>
 <tr><td><code>pilot_xds</code></td><td><code>LastValue</code></td><td>Number of endpoints connected to this pilot using XDS.</td></tr>
 <tr><td><code>pilot_xds_cds_reject</code></td><td><code>LastValue</code></td><td>Pilot rejected CDS configs.</td></tr>
 <tr><td><code>pilot_xds_config_size_bytes</code></td><td><code>Distribution</code></td><td>Distribution of configuration sizes pushed to clients</td></tr>
diff --git a/content/zh/docs/reference/commands/pilot-discovery/index.html b/content/zh/docs/reference/commands/pilot-discovery/index.html
index 346f681b22..602b3d799d 100644
--- a/content/zh/docs/reference/commands/pilot-discovery/index.html
+++ b/content/zh/docs/reference/commands/pilot-discovery/index.html
@@ -671,6 +671,12 @@ These environment variables affect the behavior of the <code>pilot-discovery</co
 <td>If true, Istio will enable the Dual Stack feature.</td>
 </tr>
 <tr>
+<td><code>ISTIO_ENABLE_CONTROLLER_QUEUE_METRICS</code></td>
+<td>Boolean</td>
+<td><code>false</code></td>
+<td>If enabled, publishes metrics for queue depth, latency and processing times.</td>
+</tr>
+<tr>
 <td><code>ISTIO_ENABLE_HTTP2_PROBING</code></td>
 <td>Boolean</td>
 <td><code>true</code></td>
@@ -1394,6 +1400,9 @@ These environment variables affect the behavior of the <code>pilot-discovery</co
 <tr><td><code>pilot_total_xds_rejects</code></td><td><code>Sum</code></td><td>Total number of XDS responses from pilot rejected by proxy.</td></tr>
 <tr><td><code>pilot_virt_services</code></td><td><code>LastValue</code></td><td>Total virtual services known to pilot.</td></tr>
 <tr><td><code>pilot_vservice_dup_domain</code></td><td><code>LastValue</code></td><td>Virtual services with dup domains.</td></tr>
+<tr><td><code>pilot_worker_queue_depth</code></td><td><code>LastValue</code></td><td>Depth of the controller queues</td></tr>
+<tr><td><code>pilot_worker_queue_duration</code></td><td><code>Distribution</code></td><td>Time taken to process an item</td></tr>
+<tr><td><code>pilot_worker_queue_latency</code></td><td><code>Distribution</code></td><td>Latency before the item is processed</td></tr>
 <tr><td><code>pilot_xds</code></td><td><code>LastValue</code></td><td>Number of endpoints connected to this pilot using XDS.</td></tr>
 <tr><td><code>pilot_xds_cds_reject</code></td><td><code>LastValue</code></td><td>Pilot rejected CDS configs.</td></tr>
 <tr><td><code>pilot_xds_config_size_bytes</code></td><td><code>Distribution</code></td><td>Distribution of configuration sizes pushed to clients</td></tr>