scx.rusty: init

pkgs/os-specific/linux/scx/default.nix

@@ -68,6 +68,7 @@ let
     { layered = import ./scx_layered; }
     { rlfifo = import ./scx_rlfifo; }
     { rustland = import ./scx_rustland; }
+    { rusty = import ./scx_rusty; }
     { csheds = import ./scx_csheds.nix; }
   ];
 in

pkgs/os-specific/linux/scx/scx_rusty/default.nix

@@ -0,0 +1,38 @@
+{
+  stdenv,
+  lib,
+  mkScxScheduler,
+}:
+
+mkScxScheduler "rust" {
+  schedulerName = "scx_rusty";
+
+  cargoRoot = "scheds/rust/scx_rusty";
+  cargoLock.lockFile = ./Cargo.lock;
+  postPatch = ''
+    rm Cargo.toml Cargo.lock
+    ln -fs ${./Cargo.lock} scheds/rust/scx_rusty/Cargo.lock
+  '';
+
+  preBuild = ''
+    cd scheds/rust/scx_rusty
+  '';
+
+  installPhase = ''
+    runHook preInstall
+    mkdir -p $out/bin
+    cp target/${stdenv.targetPlatform.config}/release/scx_rusty $out/bin/
+    runHook postInstall
+  '';
+
+  meta = {
+    description = "Sched-ext Rust userspace scheduler";
+    longDescription = ''
+      Multi-domain, BPF/userspace hybrid scheduler. BPF portion of the scheduler does
+      a simple round robin in each domain, and the userspace portion calculates the load
+      factor of each domain, and informs BPF of how tasks should be load balanced accordingly.
+      Rusty is designed to be flexible, accommodating different architectures and workloads.
+    '';
+    mainProgram = "scx_rusty";
+  };
+}

pkgs/os-specific/linux/scx/update.sh

@@ -40,7 +40,7 @@ jq \
 
 rm -f Cargo.toml Cargo.lock
 
-for scheduler in bpfland lavd layered rlfifo rustland; do
+for scheduler in bpfland lavd layered rlfifo rustland rusty; do
   pushd "scheds/rust/scx_$scheduler"
 
   cargo generate-lockfile