From a8e1e123ca12b037846b5d906fbfd91d30ece544 Mon Sep 17 00:00:00 2001
From: root <root@s52867.vps.hosting>
Date: Fri, 27 Feb 2026 17:59:20 +0000
Subject: [PATCH] =?UTF-8?q?tune:=20backfill=E6=94=B9500ms/=E6=89=B9(CPU100?=
 =?UTF-8?q?%=E2=86=92=E5=B9=B3=E8=A1=A1=E6=A8=A1=E5=BC=8F)?=
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---
 backend/backfill_agg_trades.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/backfill_agg_trades.py b/backend/backfill_agg_trades.py
index 10bc0eb..249ddbf 100644
--- a/backend/backfill_agg_trades.py
+++ b/backend/backfill_agg_trades.py
@@ -27,7 +27,7 @@ logger = logging.getLogger("backfill")
 BINANCE_FAPI = "https://fapi.binance.com/fapi/v1"
 HEADERS = {"User-Agent": "Mozilla/5.0 ArbitrageEngine/backfill"}
 BATCH_SIZE = 1000
-SLEEP_MS = 200  # PG并发无锁，全速拉取
+SLEEP_MS = 500  # 平衡速度与CPU负载
 
 
 # ─── DB helpers ──────────────────────────────────────────────────