diff --git a/suites/hg/benchmarks/debug-update-cache.pbd b/suites/hg/benchmarks/debug-update-cache.pbd
new file mode 100644
index 0000000000000000000000000000000000000000..6f2c771509c1c1956e05d1bbd81b2d50281725e8_c3VpdGVzL2hnL2JlbmNobWFya3MvZGVidWctdXBkYXRlLWNhY2hlLnBiZA==
--- /dev/null
+++ b/suites/hg/benchmarks/debug-update-cache.pbd
@@ -0,0 +1,14 @@
+[meta]
+format="0"
+name="debug-update-cache"
+method="simple-command"
+
+[run]
+copy-data-env = true
+
+[simple-command]
+command='hg debugupdatecache'
+cwd = "DATA-VARS:mercurial.main-repo-path"
+
+[simple-command.variants.dimensions.pre-state.warm]
+default=true