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perf(GetBlobsTab, NewPayloadTab): downsample chart data to 400 points #356

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Merged
mattevans merged 1 commit into from
Dec 16, 2025
Merged

perf(GetBlobsTab, NewPayloadTab): downsample chart data to 400 points #356

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12 changes: 11 additions & 1 deletion src/pages/ethereum/execution/timings/components/GetBlobsTab/GetBlobsTab.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -255,13 +255,23 @@ export function GetBlobsTab({ data, isLoading }: GetBlobsTabProps): JSX.Element
themeColors.secondary,
];

// Downsample to ~400 points max per series to keep chart performant
const MAX_POINTS_PER_SERIES = 400;

const slotDurationByClientSeries = elClientList.map((client, index) => {
const slotMap = clientSlotData.get(client) ?? new Map();
const sortedSlots = Array.from(slotMap.entries()).sort((a, b) => a[0] - b[0]);

// Downsample if needed - take every Nth point to stay under max
let sampledSlots = sortedSlots;
if (sortedSlots.length > MAX_POINTS_PER_SERIES) {
const step = Math.ceil(sortedSlots.length / MAX_POINTS_PER_SERIES);
sampledSlots = sortedSlots.filter((_, i) => i % step === 0);
}

return {
name: client,
data: sortedSlots.map(([slot, duration]) => [slot, duration]) as [number, number][],
data: sampledSlots.map(([slot, duration]) => [slot, duration]) as [number, number][],
color: clientColors[index % clientColors.length],
};
});
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12 changes: 11 additions & 1 deletion src/pages/ethereum/execution/timings/components/NewPayloadTab/NewPayloadTab.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -219,13 +219,23 @@ export function NewPayloadTab({ data }: NewPayloadTabProps): JSX.Element {
});

// Create series for the per-slot by-client chart
// Downsample to ~400 points max per series to keep chart performant
const MAX_POINTS_PER_SERIES = 400;

const slotDurationByClientSeries = elClientList.map((client, index) => {
const slotMap = clientSlotData.get(client) ?? new Map();
const sortedSlots = Array.from(slotMap.entries()).sort((a, b) => a[0] - b[0]);

// Downsample if needed - take every Nth point to stay under max
let sampledSlots = sortedSlots;
if (sortedSlots.length > MAX_POINTS_PER_SERIES) {
const step = Math.ceil(sortedSlots.length / MAX_POINTS_PER_SERIES);
sampledSlots = sortedSlots.filter((_, i) => i % step === 0);
}

return {
name: client,
data: sortedSlots.map(([slot, duration]) => [slot, duration]) as [number, number][],
data: sampledSlots.map(([slot, duration]) => [slot, duration]) as [number, number][],
color: clientColors[index % clientColors.length],
};
});
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