page_cache_fastpath in developer/hooks/core.php
Outputs a cached page.
page_get_cache in includes/bootstrap.inc
Retrieve the current page from the cache.
page_set_cache in includes/common.inc
Store the current page in the cache.
system_elements in modules/system/system.module
Implementation of hook_elements().
theme_install_page in includes/theme.maintenance.inc
Generate a themed installation page.
watchdog in includes/bootstrap.inc
Log a system message.
_block_get_cache_id in modules/block/block.module
Assemble the cache_id to use for a given block.