From 140ce9faad4997533df8977d498d814e2a4a8367 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Leosvel=20P=C3=A9rez=20Espinosa?=
 <leosvel.perez.espinosa@gmail.com>
Date: Fri, 13 Feb 2026 16:27:39 +0100
Subject: [PATCH 1/2] feat(core): use jemalloc with tuned decay timers for
 native module

---
 .cargo/config.toml     |  3 +++
 Cargo.lock             | 21 +++++++++++++++++++++
 packages/nx/Cargo.toml |  5 +++++
 packages/nx/src/lib.rs |  6 ++++++
 4 files changed, 35 insertions(+)

diff --git a/.cargo/config.toml b/.cargo/config.toml
index e70bce47ee47df..2e9a2981dd00f9 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -1,3 +1,6 @@
+[env]
+JEMALLOC_SYS_WITH_MALLOC_CONF = "dirty_decay_ms:1000,muzzy_decay_ms:0"
+
 [build]
 target-dir = 'dist/target'
 
diff --git a/Cargo.lock b/Cargo.lock
index f1a6e00e2c18c2..69bd5432345cb8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2214,6 +2214,7 @@ dependencies = [
  "tempfile",
  "terminal-colorsaurus",
  "thiserror 1.0.69",
+ "tikv-jemallocator",
  "tokio",
  "tokio-util",
  "tracing",
@@ -3832,6 +3833,26 @@ dependencies = [
  "zune-jpeg",
 ]
 
+[[package]]
+name = "tikv-jemalloc-sys"
+version = "0.6.1+5.3.0-1-ge13ca993e8ccb9ba9847cc330696e02839f328f7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd8aa5b2ab86a2cefa406d889139c162cbb230092f7d1d7cbc1716405d852a3b"
+dependencies = [
+ "cc",
+ "libc",
+]
+
+[[package]]
+name = "tikv-jemallocator"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0359b4327f954e0567e69fb191cf1436617748813819c94b8cd4a431422d053a"
+dependencies = [
+ "libc",
+ "tikv-jemalloc-sys",
+]
+
 [[package]]
 name = "time"
 version = "0.3.44"
diff --git a/packages/nx/Cargo.toml b/packages/nx/Cargo.toml
index 518088d7da9d0c..a7360e68285b82 100644
--- a/packages/nx/Cargo.toml
+++ b/packages/nx/Cargo.toml
@@ -76,6 +76,11 @@ winapi = { version = "0.3", features = ["fileapi", "psapi"] }
 [target.'cfg(windows)'.build-dependencies]
 winres = "0.1"
 
+# Windows excluded: tikv-jemalloc-sys fails to build with MSVC (spaces in cl.exe path break configure).
+# Track https://github.com/tikv/jemallocator/pull/99 for upstream fix.
+[target.'cfg(any(target_os = "linux", target_os = "macos"))'.dependencies]
+tikv-jemallocator = { version = "0.6", features = ["disable_initial_exec_tls"] }
+
 [target.'cfg(all(not(windows), not(target_family = "wasm")))'.dependencies]
 mio = "1.0"
 nix = { version = "0.30.0", features = ["process", "signal"] }
diff --git a/packages/nx/src/lib.rs b/packages/nx/src/lib.rs
index f513d125dd37ea..ab4ab71748bdc2 100644
--- a/packages/nx/src/lib.rs
+++ b/packages/nx/src/lib.rs
@@ -4,4 +4,10 @@
 #[macro_use]
 extern crate napi_derive;
 
+// Windows excluded: tikv-jemalloc-sys fails to build with MSVC.
+// Track https://github.com/tikv/jemallocator/pull/99
+#[cfg(any(target_os = "linux", target_os = "macos"))]
+#[global_allocator]
+static GLOBAL: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
+
 pub mod native;

From e66370e5ecd73eefa7d246ff09e896f6cabd009e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Leosvel=20P=C3=A9rez=20Espinosa?=
 <leosvel.perez.espinosa@gmail.com>
Date: Mon, 16 Feb 2026 10:38:32 +0100
Subject: [PATCH 2/2] chore(repo): add C build tools for jemalloc in Linux
 Docker builds

---
 .github/workflows/publish.yml | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 4efada7c9c4bc1..b65d6c218b1f31 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -174,7 +174,7 @@ jobs:
               bash -c "
                 set -e
                 echo 'https://dl-cdn.alpinelinux.org/alpine/edge/community' >> /etc/apk/repositories
-                apk add --no-cache curl xz openjdk21
+                apk add --no-cache curl xz openjdk21 build-base lld
 
                 # Set up Java 21
                 export JAVA_HOME=/usr/lib/jvm/java-21-openjdk
@@ -194,6 +194,10 @@ jobs:
                 npm i -g pnpm@${PNPM_VERSION} --force
                 pnpm --version
 
+                # Help clang find GCC runtime (crtbeginS.o, libgcc) and use lld for jemalloc build
+                GCC_DIR=\$(dirname \$(find /usr/lib/gcc -name crtbeginS.o | head -1))
+                export CFLAGS=\"\${CFLAGS} -fuse-ld=lld --gcc-install-dir=\${GCC_DIR}\"
+
                 # Install deps and run native build
                 pnpm install --frozen-lockfile
                 rustup target add x86_64-unknown-linux-musl
@@ -230,6 +234,9 @@ jobs:
               node --version
               npm --version
 
+              # Help clang find GCC runtime (crtbeginS.o, libgcc) and use lld for jemalloc build
+              export CFLAGS="${CFLAGS} -fuse-ld=lld --gcc-toolchain=/usr/aarch64-unknown-linux-gnu"
+
               npm i -g pnpm@${PNPM_VERSION} --force
               pnpm --version
 
@@ -260,7 +267,7 @@ jobs:
               bash -c "
                 set -e
                 echo 'https://dl-cdn.alpinelinux.org/alpine/edge/community' >> /etc/apk/repositories
-                apk add --no-cache curl xz openjdk21
+                apk add --no-cache curl xz openjdk21 build-base lld
 
                 # Set up Java 21
                 export JAVA_HOME=/usr/lib/jvm/java-21-openjdk
@@ -280,6 +287,10 @@ jobs:
                 npm i -g pnpm@${PNPM_VERSION} --force
                 pnpm --version
 
+                # Help clang find GCC runtime (crtbeginS.o, libgcc) and use lld for jemalloc build
+                GCC_DIR=\$(dirname \$(find /aarch64-linux-musl-cross/lib/gcc -name crtbeginS.o | head -1))
+                export CFLAGS=\"\${CFLAGS} -fuse-ld=lld --gcc-install-dir=\${GCC_DIR}\"
+
                 # Install deps and run native build
                 pnpm install --frozen-lockfile
                 rustup target add aarch64-unknown-linux-musl