8 calls to drupal_cron_run()

cron.php in drupal/cron.php
Handles incoming requests to fire off regularly-scheduled tasks (cron jobs).
CronRunTestCase::testCronCacheExpiration in drupal/modules/system/system.test
Tests that hook_flush_caches() is not invoked on every single cron run.
DrupalWebTestCase::setUp in drupal/modules/simpletest/drupal_web_test_case.php
Sets up a Drupal site for running functional and integration tests.
install_finished in drupal/includes/install.core.inc
Finishes importing files at end of installation.
PollExpirationTestCase::testAutoExpire in drupal/modules/poll/poll.test
system_run_automated_cron in drupal/modules/system/system.module
Run the automated cron if enabled.
system_run_cron in drupal/modules/system/system.admin.inc
Menu callback: run cron manually.
system_run_cron_submit in drupal/modules/system/system.admin.inc
Submit callback; run cron.