diff --git a/src/main.rs b/src/main.rs
index f1c1de52d..07480c4c6 100755
--- a/src/main.rs
+++ b/src/main.rs
@@ -2519,16 +2519,17 @@ mod tests {
                 .args(&[
                     "--backend",
                     format!(
-                        "ip={},mask=255.255.255.0,sock=/tmp/vunet.sock",
+                        "ip={},mask=255.255.255.0,sock=/tmp/vunet.sock,num_queues=4,queue_size=1024",
                         guest.network.host_ip
                     )
                     .as_str(),
                 ])
                 .spawn()
                 .unwrap();
+            thread::sleep(std::time::Duration::new(10, 0));
 
             let mut cloud_child = Command::new("target/release/cloud-hypervisor")
-                .args(&["--cpus", "boot=1"])
+                .args(&["--cpus", "boot=4"])
                 .args(&["--memory", "size=512M,file=/dev/shm"])
                 .args(&["--kernel", guest.fw_path.as_str()])
                 .args(&[
@@ -2546,11 +2547,16 @@ mod tests {
                 ])
                 .args(&[
                     "--vhost-user-net",
-                    format!("mac={},sock=/tmp/vunet.sock", guest.network.guest_mac).as_str(),
+                    format!(
+                        "mac={},sock=/tmp/vunet.sock,num_queues=4,queue_size=1024",
+                        guest.network.guest_mac
+                    )
+                    .as_str(),
                 ])
                 .spawn()
                 .unwrap();
 
+            thread::sleep(std::time::Duration::new(10, 0));
             // 1 network interface + default localhost ==> 2 interfaces
             // It's important to note that this test is fully exercising the
             // vhost-user-net implementation and the associated backend since
@@ -2568,6 +2574,29 @@ mod tests {
                 2
             );
 
+            thread::sleep(std::time::Duration::new(10, 0));
+
+            // The following pci devices will appear on guest with PCI-MSI
+            // interrupt vectors assigned.
+            // 1 virtio-console with 3 vectors: config, Rx, Tx
+            // 1 virtio-blk     with 2 vectors: config, Request
+            // 1 virtio-blk     with 2 vectors: config, Request
+            // 1 virtio-rng     with 2 vectors: config, Request
+            // Since virtio-net has 2 queue pairs, its vectors is as follows:
+            // 1 virtio-net     with 5 vectors: config, Rx (2), Tx (2)
+            // Based on the above, the total vectors should 14.
+            aver_eq!(
+                tb,
+                guest
+                    .ssh_command("grep -c PCI-MSI /proc/interrupts")
+                    .unwrap_or_default()
+                    .trim()
+                    .parse::<u32>()
+                    .unwrap_or_default(),
+                14
+            );
+
+            thread::sleep(std::time::Duration::new(10, 0));
             guest.ssh_command("sudo shutdown -h now")?;
             thread::sleep(std::time::Duration::new(5, 0));
             let _ = cloud_child.kill();