fix: add dhat

Cargo.lock

@@ -408,6 +408,22 @@ version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2a2330da5de22e8a3cb63252ce2abb30116bf5265e89c0e01bc17015ce30a476"
 
+[[package]]
+name = "dhat"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "98cd11d84628e233de0ce467de10b8633f4ddaecafadefc86e13b84b8739b827"
+dependencies = [
+ "backtrace",
+ "lazy_static",
+ "mintex",
+ "parking_lot",
+ "rustc-hash 1.1.0",
+ "serde",
+ "serde_json",
+ "thousands",
+]
+
 [[package]]
 name = "dirs"
 version = "6.0.0"
@@ -1296,6 +1312,12 @@ dependencies = [
  "adler2",
 ]
 
+[[package]]
+name = "mintex"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c505b3e17ed6b70a7ed2e67fbb2c560ee327353556120d6e72f5232b6880d536"
+
 [[package]]
 name = "mio"
 version = "1.0.4"
@@ -1463,6 +1485,7 @@ dependencies = [
  "async-trait",
  "color-eyre",
  "crossterm",
+ "dhat",
  "dirs",
  "fancy-regex",
  "foldhash 0.2.0",
@@ -1501,7 +1524,7 @@ dependencies = [
  "pin-project-lite",
  "quinn-proto",
  "quinn-udp",
- "rustc-hash",
+ "rustc-hash 2.1.1",
  "rustls",
  "socket2 0.6.0",
  "thiserror 2.0.16",
@@ -1521,7 +1544,7 @@ dependencies = [
  "lru-slab",
  "rand",
  "ring",
- "rustc-hash",
+ "rustc-hash 2.1.1",
  "rustls",
  "rustls-pki-types",
  "slab",
@@ -1753,6 +1776,12 @@ version = "0.1.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "56f7d92ca342cea22a06f2121d944b4fd82af56988c270852495420f961d4ace"
 
+[[package]]
+name = "rustc-hash"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
+
 [[package]]
 name = "rustc-hash"
 version = "2.1.1"
@@ -2131,6 +2160,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "thousands"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3bf63baf9f5039dadc247375c29eb13706706cfde997d0330d05aa63a77d8820"
+
 [[package]]
 name = "thread_local"
 version = "1.1.9"

Cargo.toml

@@ -11,6 +11,7 @@ color-eyre = "=0.6.5"
 crossterm = { version = "=0.28.1", features = [
     "event-stream",
 ], optional = true }
+dhat = { version = "=0.3.3", optional = true }
 dirs = "=6.0.0"
 fancy-regex = "=0.16.1"
 foldhash = "=0.2.0"
@@ -51,6 +52,7 @@ url = "=2.5.7"
 mimalloc = { version = "=0.1.48", optional = true, features = ["v3"] }
 
 [features]
+dhat = ["dep:dhat"]
 mimalloc = ["dep:mimalloc"]
 tui = ["dep:crossterm", "dep:futures", "dep:ratatui", "dep:tui-logger"]
 
@@ -58,3 +60,8 @@ tui = ["dep:crossterm", "dep:futures", "dep:ratatui", "dep:tui-logger"]
 strip = true
 lto = "fat"
 codegen-units = 1
+
+[profile.dhat]
+inherits = "release"
+debug = true
+strip = "none"

src/main.rs

@@ -47,6 +47,12 @@
     clippy::unwrap_used
 )]
 
+#[cfg(all(feature = "dhat", feature = "mimalloc"))]
+compile_error!(
+    "Features 'dhat-heap' and 'mimalloc' are mutually exclusive. Enable only \
+     one."
+);
+
 mod checker;
 mod config;
 #[cfg(feature = "tui")]
@@ -69,6 +75,10 @@ use tracing_subscriber::{
     layer::SubscriberExt as _, util::SubscriberInitExt as _,
 };
 
+#[cfg(feature = "dhat")]
+#[global_allocator]
+static GLOBAL: dhat::Alloc = dhat::Alloc;
+
 #[cfg(all(
     feature = "mimalloc",
     any(target_arch = "aarch64", target_arch = "x86_64"),
@@ -314,6 +324,9 @@ async fn run_without_tui(
 #[tokio::main]
 #[expect(clippy::unwrap_in_result)]
 async fn main() -> crate::Result<()> {
+    #[cfg(feature = "dhat")]
+    let _profiler = dhat::Profiler::new_heap();
+
     color_eyre::install().wrap_err("failed to install color_eyre hooks")?;
 
     let config = config::load_config().await?;