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perf: hash-sizes analytics reads from memory store

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Last remaining full-table scan on packets from SQLite.
All packet reads now go through pktStore (in-memory).
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2026-03-20 05:13:13 +00:00
parent 0b4590e48d
commit cd01da5a64
1 changed files with 2 additions and 7 deletions
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server.js
+2 -7
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@@ -1118,13 +1118,8 @@ app.get('/api/analytics/channels', (req, res) => {
app.get('/api/analytics/hash-sizes', (req, res) => {
const _c = cache.get('analytics:hash-sizes'); if (_c) return res.json(_c);
// Get all packets with raw_hex and non-empty paths, extract hash_size from path_length byte
const packets = db.db.prepare(`
SELECT raw_hex, path_json, timestamp, payload_type, decoded_json
FROM packets
WHERE raw_hex IS NOT NULL AND path_json IS NOT NULL AND path_json != '[]'
ORDER BY timestamp DESC
`).all();
// Get all packets with raw_hex and non-empty paths from memory store
const packets = pktStore.filter(p => p.raw_hex && p.path_json && p.path_json !== '[]');
const distribution = { 1: 0, 2: 0, 3: 0 };
const byHour = {}; // hour bucket → { 1: n, 2: n, 3: n }