From 102707cf30d893c4f4e7120b69ae9e40241a453f Mon Sep 17 00:00:00 2001
From: "vn.py" <xiaoyou.chen@foxmail.com>
Date: Thu, 20 Jun 2019 15:46:49 +0800
Subject: [PATCH] [Mod]change load history data cache size

---
 vnpy/app/cta_strategy/backtesting.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/vnpy/app/cta_strategy/backtesting.py b/vnpy/app/cta_strategy/backtesting.py
index 45a1c48e..fa7a725e 100644
--- a/vnpy/app/cta_strategy/backtesting.py
+++ b/vnpy/app/cta_strategy/backtesting.py
@@ -1189,7 +1189,7 @@ def ga_optimize(parameter_values: list):
     return _ga_optimize(tuple(parameter_values))
 
 
-@lru_cache(maxsize=10)
+@lru_cache(maxsize=999)
 def load_bar_data(
     symbol: str,
     exchange: Exchange,
@@ -1203,7 +1203,7 @@ def load_bar_data(
     )
 
 
-@lru_cache(maxsize=10)
+@lru_cache(maxsize=999)
 def load_tick_data(
     symbol: str,
     exchange: Exchange,