fix case with only one benchmark

Author: DaltheCow

src/guidellm/benchmark/output.py

@@ -27,9 +27,9 @@
     StatusDistributionSummary,
 )
 from guidellm.presentation import UIDataBuilder
+from guidellm.presentation.injector import create_report
 from guidellm.scheduler import strategy_display_str
 from guidellm.utils import Colors, split_text_list_by_length
-from guidellm.utils.injector import create_report
 
 __all__ = [
     "GenerativeBenchmarksConsole",

src/ui/lib/store/slices/benchmarks/benchmarks.selectors.ts

@@ -59,11 +59,6 @@ const getDefaultMetricValues = () => ({
 export const selectInterpolatedMetrics = createSelector(
   [selectBenchmarks, selectSloState],
   (benchmarks, sloState) => {
-    const sortedByRPS = benchmarks
-      ?.slice()
-      ?.sort((bm1, bm2) => (bm1.requestsPerSecond > bm2.requestsPerSecond ? 1 : -1));
-    const requestRates = sortedByRPS?.map((bm) => bm.requestsPerSecond) || [];
-    const { enforcedPercentile, currentRequestRate } = sloState;
     const metricData: {
       [K in keyof BenchmarkMetrics | 'mean']: {
         enforcedPercentileValue: number;
@@ -77,6 +72,14 @@ export const selectInterpolatedMetrics = createSelector(
       throughput: getDefaultMetricValues(),
       mean: getDefaultMetricValues(),
     };
+    if ((benchmarks?.length || 0) < 2) {
+      return metricData;
+    }
+    const sortedByRPS = benchmarks
+      ?.slice()
+      ?.sort((bm1, bm2) => (bm1.requestsPerSecond > bm2.requestsPerSecond ? 1 : -1));
+    const requestRates = sortedByRPS?.map((bm) => bm.requestsPerSecond) || [];
+    const { enforcedPercentile, currentRequestRate } = sloState;
     const metrics: (keyof BenchmarkMetrics)[] = [
       'ttft',
       'tpot',