diff --git a/commerce.install b/commerce.install
index 03f4dbc..941ffd3 100644
--- a/commerce.install
+++ b/commerce.install
@@ -323,3 +323,33 @@ function commerce_update_7102() {
     ->execute();
   return t('The module weight for Commerce has been increased.');
 }
+
+/**
+ * Implements hook_requirements().
+ */
+function commerce_requirements($phase) {
+  $requirements = array();
+  // Ensure translations don't break at install time.
+  $t = get_t();
+
+  if ($phase === 'runtime') {
+    // Check database transaction isolation level.
+    $results = db_query("SELECT variable_value IsolationLevel
+      FROM information_schema.session_variables
+      WHERE variable_name = 'tx_isolation'
+    ")->fetchAssoc();
+    $iso_level = reset($results);
+    if (strcasecmp($iso_level, 'READ-COMMITTED') !== 0) {
+      $requirements['commerce_tx_iso'] = array(
+        'title' => $t('Commerce Performance'),
+        'severity' => REQUIREMENT_INFO,
+        'value' => $t('Transaction Isolation Level: @value', array('@value' => $iso_level)),
+        'description' => $t('Drupal can suffer from deadlock issues related to fields that effects Commerce a lot, for the best database performance, set the transaction isolation level to READ-COMMITTED. Inside settings.php add this below the $databases array <p><code>@line</code></p>.', array(
+          '@line' => '$databases[\'default\'][\'default\'][\'init_commands\'][\'isolation\'] = "SET SESSION tx_isolation=\'READ-COMMITTED\'";',
+        )),
+      );
+    }
+  }
+
+  return $requirements;
+}
\ No newline at end of file