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Optimize frontend polling: visibility API, range-based intervals, skip redundant redraws

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Adds Page Visibility API to StatsPanel, templates, and capsule detail
pages so polling pauses when the browser tab is hidden. Capsule metrics
now use range-appropriate poll intervals (10s for 5m/10m, up to 120s for
24h) instead of a flat 10s. Chart updates are skipped when the data
fingerprint hasn't changed, avoiding unnecessary Canvas redraws.
This commit is contained in:
Rafeed M. Bhuiyan
2026-04-11 06:20:29 +06:00
parent dbad418093
commit 21b82c2283
4 changed files with 77 additions and 10 deletions
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11
frontend/src/lib/api/metrics.ts
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@ -21,5 +21,14 @@ export async function fetchSandboxMetrics(id: string, range: MetricRange): Promi
export const METRIC_RANGES: MetricRange[] = ['5m', '10m', '1h', '6h', '24h'];
// All ranges poll every 10 seconds.
// Poll interval varies by range — shorter ranges need fresher data.
export const METRIC_POLL_INTERVALS: Record<MetricRange, number> = {
'5m': 10_000,
'10m': 10_000,
'1h': 30_000,
'6h': 60_000,
'24h': 120_000,
};
/** @deprecated Use METRIC_POLL_INTERVALS instead */
export const METRIC_POLL_INTERVAL = 10_000;