From b74077c19ef882b3d2022d05e6f736feda3f8894 Mon Sep 17 00:00:00 2001
From: Peter Zhu <peter@peterzhu.ca>
Date: Mon, 10 Feb 2025 13:40:16 -0500
Subject: [PATCH] [ruby/mmtk] Set Immix as the default plan

https://github.com/ruby/mmtk/commit/e52b973611
---
 gc/mmtk/src/api.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gc/mmtk/src/api.rs b/gc/mmtk/src/api.rs
index 91718cead6..a3c6d56bb4 100644
--- a/gc/mmtk/src/api.rs
+++ b/gc/mmtk/src/api.rs
@@ -93,7 +93,7 @@ fn mmtk_builder_default_parse_heap_mode(heap_min: usize, heap_max: usize) -> GCT
 
 fn mmtk_builder_default_parse_plan() -> PlanSelector {
     let plan_str = std::env::var("MMTK_PLAN")
-        .unwrap_or("MarkSweep".to_string());
+        .unwrap_or("Immix".to_string());
 
     match plan_str.as_str() {
         "NoGC" => PlanSelector::NoGC,