sneak/routewatch
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Reduce WAL checkpoint interval from 30s to 5s

Browse Source 
Under heavy write load, 30 seconds is too long between checkpoints,
causing the WAL to grow and slow down read queries. More aggressive
checkpointing keeps the WAL small and maintains read performance.
This commit is contained in:
Jeffrey Paul 2026-01-01 06:48:58 -08:00
parent f1d7c21478
commit 4f62b280c5
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
internal/routewatch/dbmaintainer.go
View File

@ -14,7 +14,8 @@ import (
const (
// checkpointInterval is how often to run WAL checkpoint.
// Frequent checkpoints keep the WAL small, improving read performance.
checkpointInterval = 30 * time.Second
// Under heavy write load, we need aggressive checkpointing.
checkpointInterval = 5 * time.Second
// vacuumInterval is how often to run incremental vacuum.
// Since incremental vacuum only frees ~1000 pages (~4MB) per run,