From 9e0df6a5b4b947a1ba7ee7ef57b28c89671a5968 Mon Sep 17 00:00:00 2001
From: Fangrui Song <i@maskray.me>
Date: Sat, 8 Sep 2018 16:16:29 -0700
Subject: [PATCH] diagnostics

---
 Initialization-options.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Initialization-options.md b/Initialization-options.md
index 1fbf128..a6a6294 100644
--- a/Initialization-options.md
+++ b/Initialization-options.md
@@ -14,6 +14,20 @@ If empty, cache will be stored in memory.
 
 Additional arguments or excluded arguments for `compile_commands.json` entries.
 
+## `diagnostics.onOpen: true` `diagnostics.onChange: true` `diagnostics.onSave: false`
+
+By default, diagnostics are emitted when opening a document or a change is made.
+Diagnostics require parsing the document. If it is slow for you, consider:
+
+```javascript
+{
+  "diagnostics": {
+    "onChange": false,
+    "onSave": true
+  }
+}
+```
+
 ## `index.threads`: number of indexer threads
 
 If `index.threads` is 0, use `std::thread::hardware_concurrency()`. If you want to control peak memory usage, set it to a small integer.