Use jemalloc instead of the system allocator for Rust

docker/app/run-development

@@ -1,5 +1,8 @@
 #!/usr/bin/env sh
 
+# For compatibility with musl libc
+export CARGO_FEATURE_DISABLE_INITIAL_EXEC_TLS=1
+
 background() {
   while :; do
     mix run -e 'Philomena.Release.update_channels()'

native/furbooru_markdown/Cargo.lock

@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "adler"
 version = "1.0.2"
@@ -213,11 +215,18 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "fs_extra"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2022715d62ab30faffd124d40b76f4134a550a87792276512b18d63272333394"
+
 [[package]]
 name = "furbooru_markdown"
 version = "0.1.1"
 dependencies = [
  "comrak",
+ "jemallocator",
  "lazy_static",
  "log",
  "pretty_env_logger",
@@ -283,6 +292,27 @@ version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b71991ff56294aa922b450139ee08b3bfc70982c6b2c7562771375cf73542dd4"
 
+[[package]]
+name = "jemalloc-sys"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d3b9f3f5c9b31aa0f5ed3260385ac205db665baa41d49bb8338008ae94ede45"
+dependencies = [
+ "cc",
+ "fs_extra",
+ "libc",
+]
+
+[[package]]
+name = "jemallocator"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43ae63fcfc45e99ab3d1b29a46782ad679e98436c3169d15a167a1108a724b69"
+dependencies = [
+ "jemalloc-sys",
+ "libc",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"

native/furbooru_markdown/Cargo.toml

@@ -16,6 +16,7 @@ regex = "1"
 log = "0"
 pretty_env_logger = "0"
 rustler = "0.22.0"
+jemallocator = "0.3.2"
 
 [profile.release]
 opt-level = 3

native/furbooru_markdown/src/lib.rs

@@ -2,6 +2,10 @@ use comrak::{markdown_to_html, ComrakOptions};
 use lazy_static::lazy_static;
 use regex::{Captures, Regex};
 use rustler::Term;
+use jemallocator::Jemalloc;
+
+#[global_allocator]
+static GLOBAL: Jemalloc = Jemalloc;
 
 mod atoms {
     rustler::atoms! {