From c8f7040fe57d5f16a0a54c2cd85424511d537ad3 Mon Sep 17 00:00:00 2001
From: Runxi Yu <me@runxiyu.org>
Date: Sun, 09 Mar 2025 16:33:51 +0800
Subject: [PATCH] index: Show allocated bytes

---
 http_handle_index.go | 6 ++++++
 templates/index.tmpl | 9 ++++++---

diff --git a/http_handle_index.go b/http_handle_index.go
index 4632526ed5fcd102e51d8cbb5a7252fa4cef1959..623c6194c9c7c0d3704c31b88565a2f311fddd39 100644
--- a/http_handle_index.go
+++ b/http_handle_index.go
@@ -5,6 +5,7 @@ package main
 
 import (
 	"net/http"
+	"runtime"
 )
 
 func handle_index(w http.ResponseWriter, r *http.Request, params map[string]any) {
@@ -17,5 +18,10 @@ 		http.Error(w, "Error querying groups: "+err.Error(), http.StatusInternalServerError)
 		return
 	}
 	params["groups"] = groups
+
+	// Memory currently allocated
+	memstats := runtime.MemStats{}
+	runtime.ReadMemStats(&memstats)
+	params["mem"] = memstats.Alloc
 	render_template(w, "index", params)
 }
diff --git a/templates/index.tmpl b/templates/index.tmpl
index 2aa5729ac033d35d300764e8e1fef837710fad53..917e7feaa23616a7cf8624b4a686400ad30cb75e 100644
--- a/templates/index.tmpl
+++ b/templates/index.tmpl
@@ -53,11 +53,14 @@ 					<tr>
 						<th scope="row">SSH fingerprint</th>
 						<td><code>{{- .global.server_public_key_fingerprint -}}</code></td>
 					</tr>
+					<tr>
+						<th scope="row">Memory usage</th>
+						<td>
+							Allocated {{ .mem }} bytes <a href="/:/gc/" class="btn btn-danger">Collect garbage</a>
+						</td>
+					</tr>
 				</tbody>
 			</table>
-		</div>
-		<div class="padding-wrapper">
-			<a href="/:/gc" class="btn btn-danger">Run the garbage collector</a>
 		</div>
 		<footer>
 			{{- template "footer" . -}}

-- 
2.48.1