max_jobs: default to 2 if we can't compute it, use ceil instead of floor

cachix · Oct 15, 2024 · 6e73d13 · 6e73d13
1 parent e345a2c
commit 6e73d13
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/devenv/src/cli.rs b/devenv/src/cli.rs
@@ -349,9 +349,9 @@ pub fn default_system() -> String {
 fn max_jobs() -> u8 {
     let num_cpus = std::thread::available_parallelism().unwrap_or_else(|e| {
         eprintln!("Failed to get number of logical CPUs: {}", e);
-        std::num::NonZeroUsize::new(1).unwrap()
+        std::num::NonZeroUsize::new(4).unwrap()
     });
-    (num_cpus.get() / 2).try_into().unwrap()
+    num_cpus.get().div_ceil(2) as u8
 }
 
 #[cfg(test)]