numcpus

3 files changed, 4 insertions, 2 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 634c020..a8b2a30 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -411,6 +411,7 @@ version = "0.26.0"
 dependencies = [
  "anyhow",
  "digest",
+ "num_cpus",
  "serde",
  "serde_yaml",
  "sha2",
diff --git a/Cargo.toml b/Cargo.toml
index 9c92b01..444263f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,6 +13,7 @@ edition = "2018"
 [dependencies]
 anyhow = "1"
 digest = "0.9"
+num_cpus = "1"
 serde = { version = "1", features = ["derive"] }
 serde_yaml = "0.8"
 sha2 = "0.9"
diff --git a/src/bin/summain.rs b/src/bin/summain.rs
index 8ec14f8..110d228 100644
--- a/src/bin/summain.rs
+++ b/src/bin/summain.rs
@@ -5,8 +5,8 @@ use summain::ManifestEntry;
 
 fn main() -> anyhow::Result<()> {
     let runtime = tokio::runtime::Builder::new_multi_thread()
-        .worker_threads(16)
-        .max_blocking_threads(16)
+        .worker_threads(2)
+        .max_blocking_threads(num_cpus::get())
         .build()?;
     runtime.block_on(async { async_main().await })?;
     Ok(())