Added mimalloc as allocator

Cargo.lock

@@ -648,6 +648,15 @@ version = "0.2.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a7f823d141fe0a24df1e23b4af4e3c7ba9e5966ec514ea068c93024aa7deb765"
 
+[[package]]
+name = "libmimalloc-sys"
+version = "0.1.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d1b8479c593dba88c2741fc50b92e13dbabbbe0bd504d979f244ccc1a5b1c01"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "linked-hash-map"
 version = "0.5.4"
@@ -712,6 +721,15 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "mimalloc"
+version = "0.1.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb74897ce508e6c49156fd1476fc5922cbc6e75183c65e399c765a09122e5130"
+dependencies = [
+ "libmimalloc-sys",
+]
+
 [[package]]
 name = "mime"
 version = "0.3.16"
@@ -1201,6 +1219,7 @@ dependencies = [
  "figment",
  "hmac",
  "jwt",
+ "mimalloc",
  "openssl",
  "rand",
  "rocket",

Cargo.toml

@@ -36,8 +36,9 @@ chrono = { version = "*", features = [ "serde" ] }
 base64 = "0.13.0"
 # Reading in configuration files
 figment = { version = "*", features = [ "yaml" ] }
+mimalloc = { version = "0.1.26", default_features = false }
 
 [profile.release]
-lto = true
+lto = "fat"
 panic = "abort"
 codegen-units = 1

src/main.rs

@@ -28,6 +28,9 @@ pub mod errors;
 pub mod guards;
 pub(crate) mod schema;
 
+#[global_allocator]
+static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
+
 #[database("postgres_rb")]
 pub struct RbDbConn(diesel::PgConnection);