Better than queueing would be to fork subshell processes and using "wait" - spawn no more processes than your box can handle at a time (using a $MAXPROC), "wait" until it's done, then proceed. If you want to get fancy, implement some pipelining so you don't have to wait for all child procs to finish, but the basic concept is simple.
I wouldn't use a scheduler, that's just unnecessary.
Proposal - Q Standardized Post Line Numbering
I can't find it right now, but Q said to go back and reread posts.
I'd like to propose that we start number the lines of each post. It is clear by now that the lines in each Q post are not usually meant to be taken together - or can also be taken apart in the future. It would help tremendously for Q post research if we can get all major distributors of Q posts to start numbering each line. All important texts are line numbered, and I think it is time we do the same here.
So what is the "ask"? That we can agree this would be useful and that our glorious tool builders would agree to do this as well for the us and masses. Thank you for all you do!