migration is ok again (remains probleme of ram consuming > 4Go for users

web/modules/dev/migrate_booster/README.md

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+Copied from https://www.drupal.org/sandbox/onkeltem/2828817 and added the patch from https://www.drupal.org/project/2828817/issues/2919993
+
+# About
+
+On Drupal 7 we could disable hooks while running migrations:
+
+    https://www.drupal.org/node/2136601
+
+This module adds a similar feature. You can disable hooks 
+in settings.php or by editing configuratoin object `migrate_booster.settings`.
+
+There are two ways to disable hooks: 
+
+1) Disable specific hooks and modules: 
+
+```
+$config['migrate_booster.settings']['hooks'] = [
+  # Entity insert
+  'entity_insert' => [
+    'workbench_moderation',
+    'pathauto',
+    'xmlsitemap',
+  ],
+  # Entity presave
+  'entity_presave' => [
+    'xmlsitemap',
+  ],
+  # Entity predelete
+  'entity_predelete' => [
+    'flag',
+  ],
+];
+```
+
+2) Disable all hooks of specific modules:
+
+```
+$config['migrate_booster.settings']['modules'] = [
+  'workbench_moderation',
+  'pathauto',
+  'xmlsitemap',
+];
+```