diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 80213f394f7ff120b9f7c4aea4bab729c3fa9e2f..61dd0d633ba893d2c00eba72fd340a2a628ac754 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -22,11 +22,20 @@ before_script:
 git--gcc:
   image: registry.dune-project.org/joe/dune-perftool-ci/perftool-base:git
   script: duneci-standard-test
+  tags:
+    - "cores:20"
+    - "perftool"
 
 git--clang:
   image: registry.dune-project.org/joe/dune-perftool-ci/perftool-base:git
   script: duneci-standard-test --opts=/duneci/opts.clang
+  tags:
+    - "cores:20"
+    - "perftool"
 
 git--pacxx:
   image: registry.dune-project.org/joe/dune-perftool-ci/pacxx-perftool-base:git
   script: duneci-standard-test --opts=/duneci/opts.pacxx
+  tags:
+    - "cores:20"
+    - "perftool"