Cron will run anything - long or short. However, if you intend to run thousands of jobs per day, then you may run into the problem that the maximum cron frequency resolves once per minute. If you need a higher speed, you will have to look for other solutions.
A possible alternative to Cron is Fat Controller, which works like cron, as it basically runs other programs, but has some advantages. The fat controller can perform several actions:
Demonstrate something - give it any PHP, Python, any script, even a Java application, and it can be demonized into the background process.
Mulitask anything - script/ . , , , , (.. , ), , script .
- - script , . , x ( ). , x script , cron x script, , script, , .
- , - , , !
-: http://www.4pmp.com/fatcontroller/
, , , .