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Top Forums UNIX for Dummies Questions & Answers Max number of concurrent processes Post 42 by Neo on Wednesday 27th of September 2000 04:59:04 PM
Old 09-27-2000
Sorry, can't imagine why anyone would want to configure a UNIX kernel for more 64,000 concurrent processes.

What you are basically saying is that an administrator
could do a 'ps -aux' command to look at the process table
and would see 64,000 processes!

With the inexpensive price of CPUs, memory, disks, etc.
this is simply not a practical way to set up any platform.

But,to answer your question, albeit indirectly, there are normally formulas for kernel parameters associated with the OS. You can't just 'increase processes' without lowering another value i.e. 'file descriptors' or perhaps other kernel parameters (don't have the formulas handy, sorry).

The README files in the kernel configuration directory tree should have the formulas. Could you post these formulas?
 

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ptree(1)						      General Commands Manual							  ptree(1)

NAME
ptree - prints the process tree hierarchy SYNOPSIS
[pid1|username1 [pid2|username2]...] DESCRIPTION
prints the process tree of all processes that match the specified arguments. While printing the tree, the child processes are indented to the right from their respective parent processes. Options Prints the tree starting from the children of (usually pid 0). The default is to print the tree starting from the children of (pid 1). Operands pid Print the process tree for the process ID number specified by pid. username Print the process tree for all the processes from the user specified by username. Note that only username (and not user ID) can be specified for this instance. If no operands are specified, then prints the process tree of all processes starting from the children of or (if is specified). EXTERNAL INFLUENCES
Environment Variables If is not specified or is null, it defaults to (see lang(5)). EXAMPLES
Print the process tree for pid 100 and for all processes owned by WARNINGS
Process information can change while is running; the tree displayed by is only a snapshot in time. Some data printed for defunct processes is irrelevant. Users of must not rely on the exact field widths and spacing of its output, as these will vary depending on the system and the release of HP-UX. SEE ALSO
pgrep(1), pkill(1), ps(1), fork(2). ptree(1)
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