takusuki.comのpostgresql.conf-2025/9/28ver
# =========================
# 基本
# =========================
max_connections = 512
shared_buffers = 30GB
work_mem = 16MB
maintenance_work_mem = 2GB
# =========================
# 並列処理
# =========================
max_worker_processes = 24
max_parallel_workers_per_gather = 4
max_parallel_maintenance_workers = 4
max_parallel_workers = 24
# =========================
# WAL
# =========================
checkpoint_timeout = 30min
checkpoint_completion_target = 0.9
wal_buffers = -1
max_wal_size = 16GB
min_wal_size = 2GB
# =========================
# I/O
# =========================
random_page_cost = 1.1
effective_io_concurrency = 200
effective_cache_size = 70GB
default_statistics_target = 200
# =========================
# VACUUM
# =========================
autovacuum = on
autovacuum_max_workers = 5
autovacuum_naptime = 20s
autovacuum_work_mem = 1GB
#発火基準
autovacuum_vacuum_scale_factor = 0.05
autovacuum_analyze_scale_factor = 0.05
autovacuum_vacuum_threshold = 50
autovacuum_analyze_threshold = 50
vacuum_cost_limit = 4000
vacuum_cost_delay = 5ms
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