Fix usage provider stats and performance analysis UI

apps/aether-gateway/src/handlers/admin/observability/usage/analytics_routes/aggregation.rs

@@ -60,9 +60,15 @@ fn admin_usage_aggregation_by_provider_json(
             } else {
                 round_to(success_count as f64 / row.request_count as f64 * 100.0, 2)
             };
+            let provider_name = row
+                .display_name
+                .as_deref()
+                .map(str::trim)
+                .filter(|value| !value.is_empty())
+                .unwrap_or(row.group_key.as_str());
             json!({
                 "provider_id": row.group_key,
-                "provider": row.display_name.clone().unwrap_or_else(|| "Unknown".to_string()),
+                "provider": provider_name,
                 "request_count": row.request_count,
                 "total_tokens": row.total_tokens,
                 "effective_input_tokens": row.effective_input_tokens,

crates/aether-data/src/repository/usage/memory.rs

@@ -589,15 +589,20 @@ fn usage_matches_performance_percentiles_query(
         && item.status == "completed"
 }
 
+fn usage_reserved_provider_label(value: &str) -> bool {
+    matches!(
+        value.trim().to_ascii_lowercase().as_str(),
+        "unknown" | "unknow" | "pending"
+    )
+}
+
 fn usage_provider_performance_identity(item: &StoredRequestUsageAudit) -> Option<(String, String)> {
     let provider_id = item.provider_id.as_deref()?.trim();
-    let provider_id_status = provider_id.to_ascii_lowercase();
+    if provider_id.is_empty() || usage_reserved_provider_label(provider_id) {
-    if provider_id.is_empty() || matches!(provider_id_status.as_str(), "unknown" | "pending") {
         return None;
     }
     let provider_name = item.provider_name.trim();
-    let provider_name_status = provider_name.to_ascii_lowercase();
+    if usage_reserved_provider_label(provider_name) {
-    if matches!(provider_name_status.as_str(), "unknown" | "pending") {
         return None;
     }
     let display_name = if provider_name.is_empty() {
@@ -960,10 +965,10 @@ fn usage_output_tps_duration_ms(item: &StoredRequestUsageAudit) -> Option<u64> {
 
 fn usage_provider_display_name(item: &StoredRequestUsageAudit) -> Option<String> {
     let provider_name = item.provider_name.trim();
-    if provider_name.is_empty() || matches!(provider_name, "unknown" | "pending") {
+    if provider_name.is_empty() || usage_reserved_provider_label(provider_name) {
         None
     } else {
-        Some(item.provider_name.clone())
+        Some(provider_name.to_string())
     }
 }
 
@@ -1154,12 +1159,31 @@ impl UsageReadRepository for InMemoryUsageReadRepository {
                 continue;
             }
 
+            let provider_display_name =
+                if matches!(query.group_by, UsageAuditAggregationGroupBy::Provider) {
+                    match usage_provider_display_name(item) {
+                        Some(value) => Some(value),
+                        None => continue,
+                    }
+                } else {
+                    None
+                };
+
             let group_key = match query.group_by {
                 UsageAuditAggregationGroupBy::Model => item.model.clone(),
-                UsageAuditAggregationGroupBy::Provider => item
+                UsageAuditAggregationGroupBy::Provider => {
-                    .provider_id
+                    let display_name = provider_display_name
-                    .clone()
+                        .as_deref()
-                    .unwrap_or_else(|| "unknown".to_string()),
+                        .expect("provider display name is set for provider aggregation");
+                    item.provider_id
+                        .as_deref()
+                        .map(str::trim)
+                        .filter(|provider_id| {
+                            !provider_id.is_empty() && !usage_reserved_provider_label(provider_id)
+                        })
+                        .unwrap_or(display_name)
+                        .to_string()
+                }
                 UsageAuditAggregationGroupBy::ApiFormat => item
                     .api_format
                     .clone()
@@ -1174,8 +1198,7 @@ impl UsageReadRepository for InMemoryUsageReadRepository {
                 && (bucket.display_name.is_none()
                     || bucket.display_name.as_deref() == Some("Unknown"))
             {
-                bucket.display_name =
+                bucket.display_name = provider_display_name;
-                    usage_provider_display_name(item).or(Some("Unknown".to_string()));
             }
             bucket.request_count = bucket.request_count.saturating_add(1);
             bucket.total_tokens = bucket.total_tokens.saturating_add(item.total_tokens);
@@ -2909,7 +2932,8 @@ mod tests {
         UsageWriteRepository,
     };
     use aether_data_contracts::repository::usage::{
-        usage_body_ref, UsageBodyField, UsageProviderPerformanceQuery, UsageTimeSeriesGranularity,
+        usage_body_ref, UsageAuditAggregationGroupBy, UsageAuditAggregationQuery, UsageBodyField,
+        UsageProviderPerformanceQuery, UsageTimeSeriesGranularity,
     };
     use serde_json::json;
 
@@ -3044,6 +3068,37 @@ mod tests {
         assert_eq!(usage.total_tokens, 150);
     }
 
+    #[tokio::test]
+    async fn provider_aggregation_skips_unknown_provider_labels() {
+        let mut unknown = sample_usage("req-unknown-provider", 100);
+        unknown.provider_id = None;
+        unknown.provider_name = "unknown".to_string();
+
+        let mut typo_unknown = sample_usage("req-unknow-provider", 200);
+        typo_unknown.provider_id = Some("unknow".to_string());
+        typo_unknown.provider_name = "unknow".to_string();
+
+        let repository = InMemoryUsageReadRepository::seed(vec![
+            sample_usage("req-valid-provider", 300),
+            unknown,
+            typo_unknown,
+        ]);
+
+        let rows = repository
+            .aggregate_usage_audits(&UsageAuditAggregationQuery {
+                created_from_unix_secs: 0,
+                created_until_unix_secs: 1_000,
+                group_by: UsageAuditAggregationGroupBy::Provider,
+                limit: 10,
+            })
+            .await
+            .expect("aggregation should succeed");
+
+        assert_eq!(rows.len(), 1);
+        assert_eq!(rows[0].group_key, "provider-1");
+        assert_eq!(rows[0].display_name.as_deref(), Some("OpenAI"));
+    }
+
     #[tokio::test]
     async fn stale_pending_update_does_not_regress_finalized_usage() {
         let repository = InMemoryUsageReadRepository::default();

crates/aether-data/src/repository/usage/postgres/mod.rs

@@ -1363,12 +1363,11 @@ fn usage_audit_aggregation_sql_fragments(
             success_count_expr: "NULL::BIGINT",
         },
         UsageAuditAggregationGroupBy::Provider => UsageAuditAggregationSqlFragments {
-            filtered_extra_where: "",
+            filtered_extra_where: " AND BTRIM(COALESCE(\"usage\".provider_name, '')) <> '' AND lower(BTRIM(COALESCE(\"usage\".provider_name, ''))) NOT IN ('unknown', 'unknow', 'pending')",
             group_key_expr: "provider_group_key",
             display_name_expr: "provider_display_name",
             secondary_name_expr: "NULL::varchar",
-            aggregate_display_name_expr:
+            aggregate_display_name_expr: "MAX(display_name)",
-                "COALESCE(MAX(NULLIF(display_name, 'Unknown')), 'Unknown')",
             aggregate_secondary_name_expr: "NULL::varchar",
             avg_response_time_expr: "AVG(response_time_ms::DOUBLE PRECISION)",
             success_count_expr: "COALESCE(SUM(success_flag), 0)::BIGINT",
@@ -6474,12 +6473,17 @@ WITH filtered_usage AS (
   SELECT
     "usage".model AS model,
     "usage".user_id AS user_id,
-    COALESCE("usage".provider_id, 'unknown') AS provider_group_key,
+    CASE
+      WHEN BTRIM(COALESCE("usage".provider_id, '')) = ''
+        OR lower(BTRIM(COALESCE("usage".provider_id, ''))) IN ('unknown', 'unknow', 'pending')
+      THEN BTRIM("usage".provider_name)
+      ELSE BTRIM("usage".provider_id)
+    END AS provider_group_key,
     CASE
       WHEN BTRIM(COALESCE("usage".provider_name, '')) = ''
-        OR "usage".provider_name IN ('unknown', 'pending')
+        OR lower(BTRIM(COALESCE("usage".provider_name, ''))) IN ('unknown', 'unknow', 'pending')
-      THEN 'Unknown'
+      THEN NULL
-      ELSE "usage".provider_name
+      ELSE BTRIM("usage".provider_name)
     END AS provider_display_name,
     COALESCE("usage".api_format, 'unknown') AS api_format_group_key,
     GREATEST(COALESCE("usage".input_tokens, 0), 0) AS input_tokens,

crates/aether-data/src/repository/usage/postgres/tests.rs

@@ -414,6 +414,16 @@ fn usage_sql_aggregate_usage_audits_supports_daily_model_and_provider_aggregates
     );
 }
 
+#[test]
+fn usage_sql_provider_aggregation_excludes_unknown_provider_labels() {
+    let source = include_str!("mod.rs");
+    assert!(source.contains(
+        r#"lower(BTRIM(COALESCE(\"usage\".provider_name, ''))) NOT IN ('unknown', 'unknow', 'pending')"#
+    ));
+    assert!(source.contains("MAX(display_name)"));
+    assert!(!source.contains("COALESCE(MAX(NULLIF(display_name, 'Unknown')), 'Unknown')"));
+}
+
 #[test]
 fn usage_sql_summarize_total_tokens_by_api_key_ids_supports_daily_aggregates() {
     let source = include_str!("mod.rs");

frontend/src/features/usage/composables/__tests__/useUsageData.spec.ts

@@ -163,4 +163,60 @@ describe('useUsageData', () => {
     expect(availableModels.value).toEqual(['gpt-5'])
     expect(availableProviders.value).toEqual(['OpenAI'])
   })
+
+  it('filters placeholder providers from admin provider stats', async () => {
+    const isAdminPage = ref(true)
+    const { loadStats, providerStats, availableProviders } = useUsageData({ isAdminPage })
+    const dateRange = { preset: 'last7days', tz_offset_minutes: 0 }
+
+    getUsageStatsMock.mockResolvedValueOnce({
+      total_requests: 4,
+      total_tokens: 400,
+      total_cost: 1,
+      avg_response_time: 0,
+    })
+    getUsageByProviderMock.mockResolvedValueOnce([
+      {
+        provider: 'OpenAI',
+        request_count: 3,
+        total_tokens: 300,
+        total_cost: 1.23,
+        actual_cost: 1.5,
+        avg_response_time_ms: 1250,
+        success_rate: 100,
+      },
+      {
+        provider: 'Unknown',
+        request_count: 1,
+        total_tokens: 100,
+        total_cost: 0,
+        actual_cost: 0,
+        avg_response_time_ms: 0,
+        success_rate: 100,
+      },
+      {
+        provider: 'unknow',
+        request_count: 1,
+        total_tokens: 100,
+        total_cost: 0,
+        actual_cost: 0,
+        avg_response_time_ms: 0,
+        success_rate: 100,
+      },
+      {
+        provider: 'pending',
+        request_count: 1,
+        total_tokens: 100,
+        total_cost: 0,
+        actual_cost: 0,
+        avg_response_time_ms: 0,
+        success_rate: 100,
+      },
+    ])
+
+    await loadStats(dateRange)
+
+    expect(providerStats.value.map(item => item.provider)).toEqual(['OpenAI'])
+    expect(availableProviders.value).toEqual(['OpenAI'])
+  })
 })

frontend/src/features/usage/composables/useUsageData.ts

@@ -32,6 +32,11 @@ export interface FilterParams {
   status?: string
 }
 
+function isUsageProviderVisible(provider: string | undefined | null): provider is string {
+  const normalized = provider?.trim().toLowerCase()
+  return !!normalized && !['unknown', 'unknow', 'pending'].includes(normalized)
+}
+
 export function useUsageData(options: UseUsageDataOptions) {
   const { isAdminPage } = options
 
@@ -157,7 +162,8 @@ export function useUsageData(options: UseUsageDataOptions) {
             return true
           }
 
-          providerStats.value = providerData.map(item => ({
+          const visibleProviderData = providerData.filter(item => isUsageProviderVisible(item.provider))
+          providerStats.value = visibleProviderData.map(item => ({
             provider: item.provider,
             requests: item.request_count,
             totalTokens: item.total_tokens || 0,
@@ -175,7 +181,7 @@ export function useUsageData(options: UseUsageDataOptions) {
               : '-'
           }))
 
-          availableProviders.value = providerData.map(item => item.provider).filter(Boolean).sort()
+          availableProviders.value = visibleProviderData.map(item => item.provider).sort()
         } catch (error) {
           if (requestId !== loadStatsRequestId) {
             return true
@@ -245,22 +251,24 @@ export function useUsageData(options: UseUsageDataOptions) {
         actual_cost: item.actual_total_cost_usd
       }))
 
-      providerStats.value = (userData.summary_by_provider || []).map((item) => ({
+      providerStats.value = (userData.summary_by_provider || [])
-        provider: item.provider,
+        .filter((item) => isUsageProviderVisible(item.provider))
-        requests: item.requests || 0,
+        .map((item) => ({
-        totalTokens: item.total_tokens || 0,
+          provider: item.provider,
-        effectiveInputTokens: item.effective_input_tokens || 0,
+          requests: item.requests || 0,
-        totalInputContext: item.total_input_context || 0,
+          totalTokens: item.total_tokens || 0,
-        outputTokens: item.output_tokens || 0,
+          effectiveInputTokens: item.effective_input_tokens || 0,
-        cacheReadTokens: item.cache_read_tokens || 0,
+          totalInputContext: item.total_input_context || 0,
-        cacheCreationTokens: item.cache_creation_tokens || 0,
+          outputTokens: item.output_tokens || 0,
-        cacheHitRate: item.cache_hit_rate || 0,
+          cacheReadTokens: item.cache_read_tokens || 0,
-        totalCost: item.total_cost_usd || 0,
+          cacheCreationTokens: item.cache_creation_tokens || 0,
-        successRate: item.success_rate || 0,
+          cacheHitRate: item.cache_hit_rate || 0,
-        avgResponseTime: (item.avg_response_time_ms ?? 0) > 0
+          totalCost: item.total_cost_usd || 0,
-          ? `${((item.avg_response_time_ms ?? 0) / 1000).toFixed(2)}s`
+          successRate: item.success_rate || 0,
-          : '-'
+          avgResponseTime: (item.avg_response_time_ms ?? 0) > 0
-      }))
+            ? `${((item.avg_response_time_ms ?? 0) / 1000).toFixed(2)}s`
+            : '-'
+        }))
 
       // 用户页面：记录直接从 userData 获取（数量较少）
       // 使用 mergeRecordStatus 保护已有的活跃状态，避免轮询更新被覆盖
@@ -273,7 +281,7 @@ export function useUsageData(options: UseUsageDataOptions) {
       const providers = new Set<string>()
       currentRecords.value.forEach(record => {
         if (record.model) models.add(record.model)
-        if (record.provider) providers.add(record.provider)
+        if (isUsageProviderVisible(record.provider)) providers.add(record.provider)
       })
       availableModels.value = Array.from(models).sort()
       availableProviders.value = Array.from(providers).sort()
@@ -427,9 +435,9 @@ export function useUsageData(options: UseUsageDataOptions) {
       const mergedStatus = statusProgressed ? record.status : existing.status
       const protectStatus = mergedStatus !== record.status
 
-      // 确定是否需要保护 provider（避免 pending/unknown 覆盖已有的正确值）
+      // 确定是否需要保护 provider（避免 pending/unknown/unknow 覆盖已有的正确值）
-      const isPendingProvider = !record.provider || record.provider === 'pending' || record.provider === 'unknown'
+      const isPendingProvider = !isUsageProviderVisible(record.provider)
-      const hasValidExistingProvider = existing.provider && existing.provider !== 'pending' && existing.provider !== 'unknown'
+      const hasValidExistingProvider = isUsageProviderVisible(existing.provider)
       const protectProvider = isPendingProvider && hasValidExistingProvider
 
       // 如果需要保护状态，说明本地数据比后端更新，应该保留本地的所有实时更新字段

frontend/src/views/admin/PerformanceAnalysis.vue

@@ -342,70 +342,88 @@
             </section>
           </div>
 
-          <div class="grid grid-cols-1 gap-4 xl:grid-cols-2">
+          <div class="grid grid-cols-1 items-stretch gap-4 xl:grid-cols-2">
-            <section class="rounded-xl border border-border/70 bg-card/60 p-4">
+            <section class="flex h-full flex-col rounded-xl border border-border/70 bg-card/60 p-4">
               <div class="flex items-center justify-between gap-3">
                 <h3 class="text-sm font-semibold">
                   最近错误
                 </h3>
-                <span class="text-xs text-muted-foreground">
+                <div class="flex items-center gap-2">
-                  {{ formatMetricNumber(resilienceStatus?.error_statistics.total_errors) }} / 24h
+                  <Button
-                </span>
+                    v-if="hasMoreRecentErrors"
+                    variant="ghost"
+                    size="sm"
+                    class="h-7 gap-1 px-2 text-xs"
+                    :title="recentErrorsExpanded ? '收起最近错误' : '展开最近错误'"
+                    @click="recentErrorsExpanded = !recentErrorsExpanded"
+                  >
+                    <component
+                      :is="recentErrorsExpanded ? ChevronUp : ChevronDown"
+                      class="h-3.5 w-3.5"
+                    />
+                    {{ recentErrorsExpanded ? '收起' : `展开 ${recentErrors.length}` }}
+                  </Button>
+                  <span class="text-xs text-muted-foreground">
+                    {{ formatMetricNumber(resilienceStatus?.error_statistics.total_errors) }} / 24h
+                  </span>
+                </div>
               </div>
 
               <div
                 v-if="!recentErrors.length"
-                class="mt-4 rounded-lg border border-dashed border-border/70 px-3 py-4 text-sm text-muted-foreground"
+                class="mt-4 flex-1 rounded-lg border border-dashed border-border/70 px-3 py-4 text-sm text-muted-foreground"
               >
                 当前没有最近错误。
               </div>
 
               <div
                 v-else
-                class="mt-4 space-y-3"
+                class="mt-4 min-h-0 flex-1"
               >
-                <article
+                <div :class="recentErrorsListClass">
-                  v-for="item in recentErrors"
+                  <article
-                  :key="item.error_id"
+                    v-for="item in visibleRecentErrors"
-                  class="rounded-lg border border-border/60 bg-background/50 px-3 py-3"
+                    :key="item.error_id"
-                >
+                    class="rounded-lg border border-border/60 bg-background/50 px-3 py-3"
-                  <div class="flex items-start justify-between gap-4">
-                    <div>
-                      <div class="text-sm font-medium">
-                        {{ item.error_type }}
-                      </div>
-                      <div class="mt-1 text-xs text-muted-foreground">
-                        {{ item.operation }}
-                      </div>
-                    </div>
-                    <span class="shrink-0 text-xs text-muted-foreground">
-                      {{ formatDate(item.timestamp) }}
-                    </span>
-                  </div>
-
-                  <div class="mt-2 flex flex-wrap gap-2">
-                    <Badge variant="outline">
-                      HTTP {{ item.context.status_code ?? '-' }}
-                    </Badge>
-                    <Badge variant="outline">
-                      {{ item.context.provider_name || item.context.provider_id || '未知上游' }}
-                    </Badge>
-                    <Badge variant="outline">
-                      {{ item.context.api_format || item.context.model || '未知格式' }}
-                    </Badge>
-                  </div>
-
-                  <p
-                    v-if="item.context.error_message"
-                    class="mt-2 break-words text-xs text-muted-foreground"
                   >
-                    {{ item.context.error_message }}
+                    <div class="flex items-start justify-between gap-4">
-                  </p>
+                      <div>
-                </article>
+                        <div class="text-sm font-medium">
+                          {{ item.error_type }}
+                        </div>
+                        <div class="mt-1 text-xs text-muted-foreground">
+                          {{ item.operation }}
+                        </div>
+                      </div>
+                      <span class="shrink-0 text-xs text-muted-foreground">
+                        {{ formatDate(item.timestamp) }}
+                      </span>
+                    </div>
+
+                    <div class="mt-2 flex flex-wrap gap-2">
+                      <Badge variant="outline">
+                        HTTP {{ item.context.status_code ?? '-' }}
+                      </Badge>
+                      <Badge variant="outline">
+                        {{ item.context.provider_name || item.context.provider_id || '未知上游' }}
+                      </Badge>
+                      <Badge variant="outline">
+                        {{ item.context.api_format || item.context.model || '未知格式' }}
+                      </Badge>
+                    </div>
+
+                    <p
+                      v-if="item.context.error_message"
+                      class="mt-2 line-clamp-2 break-words text-xs text-muted-foreground"
+                    >
+                      {{ item.context.error_message }}
+                    </p>
+                  </article>
+                </div>
               </div>
             </section>
 
-            <section class="rounded-xl border border-border/70 bg-card/60 p-4">
+            <section class="flex h-full flex-col rounded-xl border border-border/70 bg-card/60 p-4">
               <div class="flex items-center justify-between gap-3">
                 <h3 class="text-sm font-semibold">
                   熔断历史与建议
@@ -488,25 +506,6 @@
       </div>
     </Card>
 
-    <div class="grid grid-cols-1 gap-4 lg:grid-cols-2">
-      <Card class="p-4">
-        <PercentileChart
-          title="响应延迟百分位"
-          :series="percentiles"
-          mode="response"
-          :loading="percentileLoading"
-        />
-      </Card>
-      <Card class="p-4">
-        <PercentileChart
-          title="首字节延迟百分位"
-          :series="percentiles"
-          mode="ttfb"
-          :loading="percentileLoading"
-        />
-      </Card>
-    </div>
-
     <Card class="space-y-4 p-4">
       <div class="flex flex-col gap-2 sm:flex-row sm:items-center sm:justify-between">
         <div>
@@ -778,6 +777,25 @@
       </Card>
     </div>
 
+    <div class="grid grid-cols-1 gap-4 lg:grid-cols-2">
+      <Card class="p-4">
+        <PercentileChart
+          title="响应延迟百分位"
+          :series="percentiles"
+          mode="response"
+          :loading="percentileLoading"
+        />
+      </Card>
+      <Card class="p-4">
+        <PercentileChart
+          title="首字节延迟百分位"
+          :series="percentiles"
+          mode="ttfb"
+          :loading="percentileLoading"
+        />
+      </Card>
+    </div>
+
     <div class="grid grid-cols-1 gap-4 lg:grid-cols-2">
       <Card class="p-4">
         <ErrorDistributionChart
@@ -815,6 +833,8 @@ import {
   AlertTriangle,
   Cable,
   CheckCircle2,
+  ChevronDown,
+  ChevronUp,
   FilterX,
   GitBranch,
   Gauge,
@@ -857,16 +877,18 @@ import { formatDate, formatNumber } from '@/utils/format'
 import { log } from '@/utils/logger'
 import {
   buildProviderPerformanceChartData,
+  formatDurationMs,
   formatProviderPerformanceMetric,
 } from './performanceAnalysisHelpers'
 
 const LIVE_REFRESH_INTERVAL_MS = 10_000
+const RECENT_ERRORS_COLLAPSED_LIMIT = 3
 const DEFAULT_PROVIDER_PERFORMANCE_SLOW_THRESHOLD_MS = 10_000
 
 type ProviderPerformanceBooleanFilter = 'all' | 'true' | 'false'
 type ProviderPerformanceParams = NonNullable<Parameters<typeof adminApi.getProviderPerformance>[0]>
 
-const timeRange = ref<DateRangeParams>(getDateRangeFromPeriod('last30days'))
+const timeRange = ref<DateRangeParams>(getDateRangeFromPeriod('last7days'))
 const { error: showError } = useToast()
 
 const percentiles = ref<PercentileItem[]>([])
@@ -895,6 +917,7 @@ const liveRefreshing = ref(false)
 const liveReady = ref(false)
 const liveLoadError = ref<string | null>(null)
 const liveLastUpdatedAt = ref<string | null>(null)
+const recentErrorsExpanded = ref(false)
 
 let percentilesRequestId = 0
 let errorsRequestId = 0
@@ -1203,6 +1226,16 @@ const errorTrendChartData = computed(() => ({
 }))
 
 const recentErrors = computed(() => resilienceStatus.value?.recent_errors ?? [])
+const hasMoreRecentErrors = computed(() => recentErrors.value.length > RECENT_ERRORS_COLLAPSED_LIMIT)
+const visibleRecentErrors = computed(() => (
+  recentErrorsExpanded.value
+    ? recentErrors.value
+    : recentErrors.value.slice(0, RECENT_ERRORS_COLLAPSED_LIMIT)
+))
+const recentErrorsListClass = computed(() => [
+  'space-y-3',
+  recentErrorsExpanded.value ? 'max-h-[360px] overflow-y-auto pr-1' : '',
+])
 const resilienceRecommendations = computed(() => resilienceStatus.value?.recommendations ?? [])
 
 const healthStatusVariant = computed<'success' | 'warning' | 'destructive' | 'outline'>(() => {
@@ -1396,7 +1429,7 @@ const providerLatencyChartOptions = computed(() => ({
   scales: {
     y: {
       ticks: {
-        callback: (value: string | number) => `${value}ms`,
+        callback: (value: string | number) => formatDurationMs(Number(value), 0),
       },
     },
   },

frontend/src/views/admin/__tests__/performanceAnalysisHelpers.spec.ts

@@ -1,6 +1,7 @@
 import { describe, expect, it } from 'vitest'
 import {
   buildProviderPerformanceChartData,
+  formatDurationMs,
   formatProviderPerformanceMetric,
 } from '../performanceAnalysisHelpers'
 import type { ProviderPerformanceItem, ProviderPerformanceTimelineItem } from '@/api/admin'
@@ -13,6 +14,14 @@ describe('performanceAnalysisHelpers', () => {
     expect(formatProviderPerformanceMetric(18.456, '/s')).toBe('18.46/s')
   })
 
+  it('formats millisecond metrics as seconds above one second', () => {
+    expect(formatDurationMs(999, 0)).toBe('999ms')
+    expect(formatDurationMs(1000, 0)).toBe('1.00s')
+    expect(formatDurationMs(80148, 0)).toBe('80.15s')
+    expect(formatProviderPerformanceMetric(80148, 'ms', 0)).toBe('80.15s')
+    expect(formatProviderPerformanceMetric(99.456, 'ms')).toBe('99.46ms')
+  })
+
   it('builds stable provider trend datasets with null gaps', () => {
     const providers: Pick<ProviderPerformanceItem, 'provider_id' | 'provider'>[] = [
       { provider_id: 'provider-a', provider: 'OpenAI' },

frontend/src/views/admin/performanceAnalysisHelpers.ts

@@ -25,9 +25,26 @@ export function formatProviderPerformanceMetric(
   if (value == null || Number.isNaN(value)) {
     return '-'
   }
+  if (suffix === 'ms') {
+    return formatDurationMs(value, decimals)
+  }
   return `${value.toFixed(decimals)}${suffix}`
 }
 
+export function formatDurationMs(
+  value: number | null | undefined,
+  msDecimals = 0,
+  secondsDecimals = 2
+): string {
+  if (value == null || Number.isNaN(value)) {
+    return '-'
+  }
+  if (Math.abs(value) >= 1000) {
+    return `${(value / 1000).toFixed(secondsDecimals)}s`
+  }
+  return `${value.toFixed(msDecimals)}ms`
+}
+
 export function buildProviderPerformanceChartData(
   timeline: ProviderPerformanceTimelineItem[],
   metric: ProviderPerformanceMetricKey,

frontend/src/views/shared/Usage.vue

@@ -495,10 +495,12 @@ async function pollActiveRequests() {
           record.target_model = update.target_model
         }
         // 管理员接口返回额外字段
-        // 只有当返回的 provider 不是 pending/unknown 时才更新，避免覆盖已有的正确值
+        // 只有当返回的 provider 不是 pending/unknown/unknow 时才更新，避免覆盖已有的正确值
-        if ('provider' in update && typeof update.provider === 'string' &&
+        if ('provider' in update && typeof update.provider === 'string') {
-            update.provider !== 'pending' && update.provider !== 'unknown') {
+          const updateProviderLabel = update.provider.trim().toLowerCase()
-          record.provider = update.provider
+          if (updateProviderLabel && !['pending', 'unknown', 'unknow'].includes(updateProviderLabel)) {
+            record.provider = update.provider
+          }
         }
         if ('api_key_name' in update) {
           record.api_key_name = typeof update.api_key_name === 'string' ? update.api_key_name : undefined