ensure we allocate before timing starts in quicksort bench

rayon-rs · Feb 13, 2024 · 03317c8 · 03317c8
1 parent 0b8aa98
commit 03317c8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/rayon-demo/src/quicksort/bench.rs b/rayon-demo/src/quicksort/bench.rs
@@ -6,7 +6,7 @@ const BENCH_SIZE: usize = 250_000_000 / 512;
 
 fn bench_harness<F: FnMut(&mut [u32])>(mut f: F, b: &mut test::Bencher) {
     let base_vec = super::default_vec(BENCH_SIZE);
-    let mut sort_vec = vec![];
+    let mut sort_vec = base_vec.clone();
     b.iter(|| {
         sort_vec.clone_from(&base_vec);
         f(&mut sort_vec);