Shell Programming and Scripting

I need to run as many (thousands) very small cron jobs within a duration of 5 minutes and repeatedly through out the day. This kind of requirement would be up against system resources and limitations such as nproc, maxuprc, numbers of cron jobs allowed in crontab, RSS, SWAP, CPU and others that I don't know. The problem is typical knapsack problem, maximize number of jobs within constrains.

1. A typical cron job is to monitor responsiveness of a webpage. A simplified one-liner would be: time -p wget http://domain.com where domain.com is varied.

2. I have root access

3. At the other thread I read the below script, what is the purpose of the wait command? Can I use the above one-liner as a job in this example? 4. In general, what do I have to do? What strategy?

Thanks in advance, your advise appreciated.

The processes job1, job2 and job3 are all run in the background (thanks to the "&").

The "wait" command still stop until all previously spawned background processes are finished.

What happened if the wait wasn't there?

I found an answer for the wait question here: Zombie process - Wikipedia, the free encyclopedia
Anyway, any suggestion for my knapsack problem?