Magento Cron configuration

Magento Settings: System >> Configuration >> System > ‘Cron (Scheduled Tasks)’ tab.

• Generate schedules every: 60
• Schedule ahead for: 1
• Missed if not run within: 60
• History cleanup every: 120
• Success history lifetime: 120
• Failure history lifetime: 120

$ crontab -e 

# Execute the Magneto cron every 15 minutes
*/15 * * * * /bin/sh /path/to/magento/cron.sh