run pytests in parallel

.github/workflows/benchmark.yml

@@ -48,7 +48,7 @@ jobs:
       run: |
         python -m pip install maturin
         rustup target add x86_64-unknown-linux-musl
-        python -m pip install pytest
+        python -m pip install pytest pytest-xdist
         python -m pip install mypy
         python -m pip install black
 

.github/workflows/build-test.yml

@@ -383,7 +383,7 @@ jobs:
           source venv/bin/activate
           git clone https://github.com/Chia-Network/clvm_tools.git --branch=main --single-branch
           pip install ./clvm_tools
-          pip install colorama maturin pytest chia-blockchain==2.1.2 clvm==0.9.8
+          pip install colorama maturin pytest pytest-xdist chia-blockchain==2.1.2 clvm==0.9.8
           maturin develop --release -m wheel/Cargo.toml
           pytest tests
           grcov . --binary-path target -s . --branch --ignore-not-existing --ignore='*/.cargo/*' --ignore='tests/*' --ignore='venv/*' -o rust_cov.info

pytest.ini

@@ -0,0 +1,2 @@
+[pytest]
+addopts = --verbose --tb=short -n auto