diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index b7b3c0a..0e72a33 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -1,6 +1,7 @@
 name: benchmark
 
 on:
+  workflow_dispatch:
   schedule:
     - cron: '0 0 * * *'
   push:
diff --git a/.github/workflows/gcscan.yml b/.github/workflows/gcscan.yml
index 27999d5..4117e73 100644
--- a/.github/workflows/gcscan.yml
+++ b/.github/workflows/gcscan.yml
@@ -1,6 +1,9 @@
 name: gcscan
 
 on:
+  pull_request:
+    paths-ignore:
+      - README.md
   schedule:
     - cron: '0 0 * * *'
   push:
diff --git a/.github/workflows/memory.yml b/.github/workflows/memory.yml
index 3dcafa2..93a2b32 100644
--- a/.github/workflows/memory.yml
+++ b/.github/workflows/memory.yml
@@ -1,6 +1,9 @@
 name: memory
 
 on:
+  pull_request:
+    paths-ignore:
+      - README.md
   schedule:
     - cron: '0 0 * * *'
   push: