diff --git a/README.md b/README.md
index d611d17..9f72edf 100644
--- a/README.md
+++ b/README.md
@@ -162,6 +162,12 @@ profile env 默认放在：
 node ./scripts/run-profile.mjs default
 ```
 
+如果已经由 state 记录了当前活跃 profile，也可以直接不传 profile 参数：
+
+```bash
+node ./scripts/run-profile.mjs --prefer-state-profile
+```
+
 ## 如何恢复
 
 Windows:
diff --git a/scripts/run-profile.mjs b/scripts/run-profile.mjs
index 7eb8cdd..22828dd 100644
--- a/scripts/run-profile.mjs
+++ b/scripts/run-profile.mjs
@@ -55,7 +55,15 @@ function parseEnvFile(content) {
 
 function getProfileName(options) {
   const positional = options._?.[0];
-  return `${options.profile || positional || process.env.CODEX_RETRY_GATEWAY_PROFILE || "default"}`;
+  return `${options.profile || positional || process.env.CODEX_RETRY_GATEWAY_PROFILE || ""}`.trim();
+}
+
+function resolveDefaultRequestedProfileName(existingState) {
+  const stateProfileName = `${existingState?.profile_name || ""}`.trim();
+  if (stateProfileName) {
+    return stateProfileName;
+  }
+  return process.env.CODEX_RETRY_GATEWAY_DEFAULT_PROFILE || "default";
 }
 
 function resolvePreferredProfileName({ requestedProfileName, existingState, preferStateProfile, profilesDir }) {
@@ -246,7 +254,6 @@ async function ensureCodexPointsToGateway({ paths, codexConfigPath, providerCont
 
 async function main() {
   const options = parseOptions(process.argv, { booleanFlags: ["no-codex-config-update", "prefer-state-profile"] });
-  const requestedProfileName = getProfileName(options);
   const profilesDir = options.profilesDir || DEFAULT_PROFILES_DIR;
   const stateRoot = options.stateRoot || process.env.CODEX_RETRY_GATEWAY_STATE_ROOT || DEFAULT_STATE_ROOT;
   const codexConfigPath =
@@ -261,6 +268,7 @@ async function main() {
   await ensureDirectory(paths.backupDir);
 
   const existingState = await readJsonFile(paths.statePath);
+  const requestedProfileName = getProfileName(options) || resolveDefaultRequestedProfileName(existingState);
   const profileName = resolvePreferredProfileName({
     requestedProfileName,
     existingState,
diff --git a/ui-src/src/App.tsx b/ui-src/src/App.tsx
index 1764c54..ec476a4 100644
--- a/ui-src/src/App.tsx
+++ b/ui-src/src/App.tsx
@@ -310,6 +310,17 @@ function durationSeconds(value?: number | null) {
   return typeof value === "number" && Number.isFinite(value) ? `${(value / 1000).toFixed(2)} s` : "-";
 }
 
+function secondsSince(value: string | null | undefined, nowMs: number) {
+  if (!value) {
+    return "-";
+  }
+  const atMs = new Date(value).getTime();
+  if (Number.isNaN(atMs)) {
+    return "-";
+  }
+  return `${Math.max(0, (nowMs - atMs) / 1000).toFixed(1)} s`;
+}
+
 function bytesFormat(value?: number | null) {
   if (typeof value !== "number" || !Number.isFinite(value)) {
     return "-";
@@ -478,6 +489,7 @@ export default function App() {
   const [latestLogSeq, setLatestLogSeq] = useState(0);
   const [requestQuery, setRequestQuery] = useState("");
   const [requestFilter, setRequestFilter] = useState("all");
+  const [nowMs, setNowMs] = useState(() => Date.now());
   const [ruleForm, setRuleForm] = useState<RuleFormState>(ruleFormFromStatus(null));
   const [profileForm, setProfileForm] = useState<ProfileFormState>(defaultProfileForm);
   const [ruleMessage, setRuleMessage] = useState<MessageState>({ text: "", tone: "" });
@@ -668,6 +680,7 @@ export default function App() {
     if (page !== "requests") {
       return;
     }
+    setNowMs(Date.now());
     const timer = window.setTimeout(() => {
       loadRequests().catch((error) => {
         setRuleMessage({ text: error?.message || String(error), tone: "error" });
@@ -676,6 +689,16 @@ export default function App() {
     return () => window.clearTimeout(timer);
   }, [page, requestQuery, requestFilter]);
 
+  useEffect(() => {
+    if (page !== "requests") {
+      return;
+    }
+    const timer = window.setInterval(() => {
+      setNowMs(Date.now());
+    }, 1000);
+    return () => window.clearInterval(timer);
+  }, [page]);
+
   async function saveProfile(event: FormEvent) {
     event.preventDefault();
     setProfileMessage({ text: "正在保存 profile...", tone: "" });
@@ -1019,7 +1042,7 @@ export default function App() {
                                 <span className="meta-pill meta-stream">
                                   <span className="meta-key">流</span>
                                   {entry.response_stream
-                                    ? `${numberFormat(entry.stream_chunk_count)} chunk / ${bytesFormat(entry.response_bytes_received)}`
+                                    ? `${numberFormat(entry.stream_chunk_count)} chunk / ${bytesFormat(entry.response_bytes_received)} / ${secondsSince(entry.last_activity_at || entry.usage_last_updated_at, nowMs)}`
                                     : "-"}
                                 </span>
                                 <span className="meta-pill meta-received">