use jemallocator override_allocator_on_supported_platforms feature

Author: killzoner

Cargo.lock

@@ -44,23 +44,23 @@ clap = { version = "4.5.49", default-features = true, features = [
   "derive",
   "env",
 ] }
-tokio = { version = "1.48.0", default-features = false, features = [
-  "macros",
-  "rt-multi-thread",
-] }
-
-
-[dev-dependencies.tikv-jemallocator]
-features = [
+tikv-jemalloc-sys = { version = "0.6.1", default-features = false }
+tikv-jemallocator = { version = "0.6.1", features = [
   # https://github.com/tikv/jemallocator/blob/master/jemalloc-sys/README.md#features
   # https://github.com/jemalloc/jemalloc/blob/dev/TUNING.md
   "background_threads_runtime_support",
   "background_threads",
   "stats",
   "unprefixed_malloc_on_supported_platforms",
   "profiling",
-]
-version = "0.6.1"
+  # override the system allocator even outside Rust code.
+  # https://github.com/tikv/jemallocator/blob/0.6.1/jemalloc-sys/README.md?plain=1#L91.
+  "override_allocator_on_supported_platforms",
+] }
+tokio = { version = "1.48.0", default-features = false, features = [
+  "macros",
+  "rt-multi-thread",
+] }
 
 [features]
 default = ["pprof"]

Cargo.toml

@@ -12,6 +12,11 @@ use tokio::{
 #[global_allocator]
 static ALLOC: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
 
+// Override the system allocator even outside Rust code.
+// See https://github.com/tikv/jemallocator/blob/0.6.1/jemalloc-sys/README.md?plain=1#L91.
+#[cfg(not(target_env = "msvc"))]
+use tikv_jemalloc_sys as _;
+
 /// Global jemalloc allocator config for memory profiling.
 /// Define this at the root of your app.
 #[allow(non_upper_case_globals)]