diff --git a/.gitignore b/.gitignore
index 2014045..9a75e6a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,6 @@
 /target
 /test
 *~
+
+flamegraph.svg
+perf*
diff --git a/Cargo.toml b/Cargo.toml
index dc938ca..8f3742c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,6 +7,12 @@ edition = "2018"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
+[profile.release]
+opt-level = 3
+lto = "fat"
+codegen-units = 1
+panic = "unwind"
+
 [features]
 default = ["threads"]