diff --git a/src/IDF/Project.php b/src/IDF/Project.php
index 28d3d48..05931c2 100644
--- a/src/IDF/Project.php
+++ b/src/IDF/Project.php
@@ -366,7 +366,8 @@ class IDF_Project extends Pluf_Model
     public function getRepositorySize($force=false)
     {
         $last_eval = $this->getConf()->getVal('repository_size_check_date', 0);
-        if (!$force and $last_eval > time()-172800) {
+        if (Pluf::f('idf_no_size_check', false) or
+            (!$force and $last_eval > time()-172800)) {
             return $this->getConf()->getVal('repository_size', -1);
         }
         $this->getConf()->setVal('repository_size_check_date', time());
diff --git a/src/IDF/Views/Admin.php b/src/IDF/Views/Admin.php
index 49a1685..f7525a8 100644
--- a/src/IDF/Views/Admin.php
+++ b/src/IDF/Views/Admin.php
@@ -357,7 +357,8 @@ function IDF_Views_Admin_getForgeSize($force=false)
         }
     }
     $last_eval = $conf->getVal('downloads_size_check_date', 0);
-    if (!$force and $last_eval > time()-172800) {
+    if (Pluf::f('idf_no_size_check', false) or
+              (!$force and $last_eval > time()-172800)) {
         $res['downloads'] = $conf->getVal('downloads_size', 0);
     } else {
         $conf->setVal('downloads_size_check_date', time());
@@ -368,7 +369,8 @@ function IDF_Views_Admin_getForgeSize($force=false)
         $conf->setVal('downloads_size', $res['downloads']);
     }
     $last_eval = $conf->getVal('attachments_size_check_date', 0);
-    if (!$force and $last_eval > time()-172800) {
+    if (Pluf::f('idf_no_size_check', false) or
+        (!$force and $last_eval > time()-172800)) {
         $res['attachments'] = $conf->getVal('attachments_size', 0);
     } else {
         $conf->setVal('attachments_size_check_date', time());
@@ -379,7 +381,8 @@ function IDF_Views_Admin_getForgeSize($force=false)
         $conf->setVal('attachments_size', $res['attachments']);
     }
     $last_eval = $conf->getVal('database_size_check_date', 0);
-    if (!$force and $last_eval > time()-172800) {
+    if (Pluf::f('idf_no_size_check', false) or
+        (!$force and $last_eval > time()-172800)) {
         $res['database'] = $conf->getVal('database_size', 0);
     } else {
         $conf->setVal('database_size_check_date', time());
diff --git a/src/IDF/conf/idf.php-dist b/src/IDF/conf/idf.php-dist
index 36d69b2..e927fce 100644
--- a/src/IDF/conf/idf.php-dist
+++ b/src/IDF/conf/idf.php-dist
@@ -235,4 +235,9 @@ $cfg['allowed_scm'] = array('git' => 'IDF_Scm_Git',
 # $cfg['hg_path'] = 'hg';
 # $cfg['git_path'] = 'git'; 
 
+# If you do not want to have calculations of the repositories, attachments
+# and downloads size, set it to true. You can set to false some
+# times to times to check the size.
+# $cfg['idf_no_size_check'] = false;
+
 return $cfg;