What module will show me all sql queries being run on the loaded page? My site is running slow and I suspect its a module, but not sure which one. Is there a module that can display all the sql queries being run on a loaded page? If there isn't maybe there is a command line tool that others use to monitor this data?
The Devel module has a query log option, which when enabled will show every query that's been run for a request at the footer of the page.

You can enable it at admin/config/development/devel once the module's installed.