Set the default number of threads to n_cpu-1 (#372)

mozilla · Jan 9, 2020 · c7a8ef4 · c7a8ef4
1 parent 01be516
commit c7a8ef4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/main.rs b/src/main.rs
@@ -23,7 +23,7 @@ use std::{process, thread};
 use grcov::*;
 
 fn main() {
-    let default_num_threads = (num_cpus::get() * 2).to_string();
+    let default_num_threads = 1.max(num_cpus::get() - 1).to_string();
 
     let matches = App::new("grcov")
                           .version(crate_version!())