diff --git a/scripts/run_integration_tests.sh b/scripts/run_integration_tests.sh
index 8998d0aa4..d7f825eaa 100755
--- a/scripts/run_integration_tests.sh
+++ b/scripts/run_integration_tests.sh
@@ -159,7 +159,7 @@ cp target/release/cloud-hypervisor $VFIO_DIR
 
 # Enable KSM with some reasonable parameters so that it won't take too long
 # for the memory to be merged between two processes.
-sudo bash -c "echo 10000 > /sys/kernel/mm/ksm/pages_to_scan"
+sudo bash -c "echo 1000000 > /sys/kernel/mm/ksm/pages_to_scan"
 sudo bash -c "echo 10 > /sys/kernel/mm/ksm/sleep_millisecs"
 sudo bash -c "echo 1 > /sys/kernel/mm/ksm/run"
 
diff --git a/src/main.rs b/src/main.rs
index 1e0061779..372096de5 100755
--- a/src/main.rs
+++ b/src/main.rs
@@ -4311,7 +4311,7 @@ mod tests {
             let new_pss = new_pss as f32;
 
             if mergeable {
-                aver!(tb, new_pss < (old_pss * 0.9));
+                aver!(tb, new_pss < (old_pss * 0.95));
             } else {
                 aver!(tb, (old_pss * 0.95) < new_pss && new_pss < (old_pss * 1.05));
             }