URGENT Help required regarding the use of FORK system call Post: 8111

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Top Forums UNIX for Advanced & Expert Users URGENT Help required regarding the use of FORK system call Post 8111 by Perderabo on Friday 5th of October 2001 02:26:55 PM

10-05-2001

Administrator Emeritus

Well, a few general comments...cracking a program into 5 subprocesses like this makes sense only if you have 5 or more cpu's available.

To have children a process must never fork(). To have no zombies, a process must issue a wait() each time a child dies. A process can catch SIGCHLD to be notified of the death of a child.

I would try to drive my processing time per record down and use buffered i/o. Make sure that you don't fork any processes per record.

Finally, if your program sucks, the client will not give you any brownie points for the fact that it was on time. And if it's a few days late but perfect, he will forget the lateness eventually. Don't sacrifice the quality for the timetable, it's not worth it.

Perderabo

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