uses tikv_jemallocator::Jemalloc as the global allocator

solana-labs#16346 switched default allocator from jemalloc to system allocator, but that has shown regressions in form of higher ram usage causing nodes go OOM. This commit sets jemalloc as the default allocator.
behzadnouri · Sep 23, 2021 · 1dcfec5 · 1dcfec5
1 parent a70fd8e
commit 1dcfec5
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diff --git a/Cargo.lock b/Cargo.lock
diff --git a/validator/Cargo.toml b/validator/Cargo.toml
@@ -49,6 +49,9 @@ solana-version = { path = "../version", version = "=1.8.0" }
 solana-vote-program = { path = "../programs/vote", version = "=1.8.0" }
 symlink = "0.1.0"
 
+[target.'cfg(not(target_env = "msvc"))'.dependencies]
+jemallocator = {package = "tikv-jemallocator", version = "0.4.1"}
+
 [target."cfg(unix)".dependencies]
 libc = "0.2.102"
 signal-hook = "0.2.3"

diff --git a/validator/src/main.rs b/validator/src/main.rs
@@ -86,6 +86,13 @@ use {
     },
 };
 
+#[cfg(not(target_env = "msvc"))]
+use jemallocator::Jemalloc;
+
+#[cfg(not(target_env = "msvc"))]
+#[global_allocator]
+static GLOBAL: Jemalloc = Jemalloc;
+
 #[derive(Debug, PartialEq)]
 enum Operation {
     Initialize,