diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 69194a46cc..01170df28f 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - main
+      - eio
   pull_request:
   schedule:
     # Prime the caches every Monday
diff --git a/bench.Dockerfile b/bench.Dockerfile
new file mode 100644
index 0000000000..6128f445e3
--- /dev/null
+++ b/bench.Dockerfile
@@ -0,0 +1,10 @@
+FROM ocaml/opam:debian-ocaml-5.1
+RUN sudo ln -sf /usr/bin/opam-2.1 /usr/bin/opam
+WORKDIR bench-dir
+RUN sudo chown opam .
+COPY *.opam ./
+RUN opam remote add origin https://github.com/ocaml/opam-repository.git && opam update
+RUN opam pin -yn --with-version=dev .
+RUN opam install -y --deps-only --with-test .
+COPY . ./
+RUN make bench
diff --git a/examples/dune b/examples/dune
index 28f453fd47..828487455d 100644
--- a/examples/dune
+++ b/examples/dune
@@ -62,4 +62,7 @@
 
 (mdx
  (files merkle_proofs.md)
- (libraries irmin irmin-cli irmin-git.unix ppx_irmin))
+ (package irmin-cli)
+ (libraries irmin irmin-cli irmin-git.unix ppx_irmin)
+ (enabled_if (<> %{model} "ppc64"))
+ )