Menu Builder Batch

This module uses the batch API for building the Drupal menu routers and links.

It provides a link for building the menu without need to process the modules page.

It also overwrites the submission of the form found in the admin/build/modules page.

Rather than processing everything at once, the menu is built apart from theme registry and such things.

This is really useful if you can't increase your PHP memory limit.

So, if your project has a lot of menu callbacks, you usually get a memory overflow when you try to build the menu.

If that's your case, this module can help you.