From 8a403cde0012e9f26600ec20cdfab39f75e02074 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Fri, 30 Oct 2020 03:02:00 -0500
Subject: [PATCH] Defer esphome persistent storage writes until after startup
 (#42600)

Avoid disk I/O during startup as it can cause delays when
a user has many esphome devices.
---
 homeassistant/components/esphome/entry_data.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/homeassistant/components/esphome/entry_data.py b/homeassistant/components/esphome/entry_data.py
index 8f273b682ff..54da1ed5562 100644
--- a/homeassistant/components/esphome/entry_data.py
+++ b/homeassistant/components/esphome/entry_data.py
@@ -31,6 +31,8 @@ if TYPE_CHECKING:
 
 DATA_KEY = "esphome"
 
+SAVE_DELAY = 120
+
 # Mapping from ESPHome info type to HA platform
 INFO_TYPE_TO_PLATFORM = {
     BinarySensorInfo: "binary_sensor",
@@ -159,7 +161,7 @@ class RuntimeEntryData:
         for service in self.services.values():
             store_data["services"].append(service.to_dict())
 
-        await self.store.async_save(store_data)
+        self.store.async_delay_save(lambda: store_data, SAVE_DELAY)
 
 
 def _attr_obj_from_dict(cls, **kwargs):