diff --git a/Cargo.lock b/Cargo.lock
index ed7d97d9..1f8535f8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1328,6 +1328,16 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "memory-stats"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34f79cf9964c5c9545493acda1263f1912f8d2c56c8a2ffee2606cb960acaacc"
+dependencies = [
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "mime"
 version = "0.3.17"
@@ -1568,6 +1578,7 @@ dependencies = [
  "humantime",
  "humantime-serde",
  "log",
+ "memory-stats",
  "mime_guess",
  "num_cpus",
  "once_cell",
diff --git a/Cargo.toml b/Cargo.toml
index 4d2dbef9..497805f1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -31,6 +31,7 @@ http = "1.1.0"
 humantime = "2.1.0"
 humantime-serde = "1.1.1"
 log = "0.4.21"
+memory-stats = { version = "1.1.0", features = ["always_use_statm"] }
 mime_guess = "2.0.4"
 num_cpus = "1.16.0"
 once_cell = "1.19.0"
diff --git a/TODO.md b/TODO.md
index 8183e339..163a07e7 100644
--- a/TODO.md
+++ b/TODO.md
@@ -23,3 +23,4 @@
 - [x] add remark for config
 - [ ] support multi host for location?
 - [ ] support set upstream_keepalive_pool_size
+- [ ] graceful restart for admin web
diff --git a/src/proxy/server.rs b/src/proxy/server.rs
index d1748808..48d5a12d 100644
--- a/src/proxy/server.rs
+++ b/src/proxy/server.rs
@@ -9,8 +9,10 @@ use crate::utils;
 use async_trait::async_trait;
 use base64::{engine::general_purpose::STANDARD, Engine};
 use bytes::Bytes;
+use bytesize::ByteSize;
 use http::StatusCode;
 use log::{error, info};
+use memory_stats::memory_stats;
 use once_cell::sync::Lazy;
 use pingora::http::ResponseHeader;
 use pingora::listeners::TlsSettings;
@@ -167,6 +169,8 @@ struct ServerStats {
     processing: i32,
     accepted: u64,
     hostname: String,
+    physical_mem_mb: usize,
+    physical_mem: String,
 }
 
 pub struct ServerServices {
@@ -269,10 +273,17 @@ impl Server {
         Ok(ServerServices { lb, bg_services })
     }
     async fn send_stats_response(&self, session: &mut Session, ctx: &mut State) {
+        let mut physical_mem = 0;
+        if let Some(value) = memory_stats() {
+            physical_mem = value.physical_mem;
+        }
+
         let buf = serde_json::to_vec(&ServerStats {
             accepted: self.accepted.load(Ordering::Relaxed),
             processing: self.processing.load(Ordering::Relaxed),
             hostname: HOST_NAME.to_string(),
+            physical_mem: ByteSize(physical_mem as u64).to_string_as(true),
+            physical_mem_mb: physical_mem / (1024 * 1024),
         })
         .unwrap_or_default();