That's because TSO spawns a subtask for every command. There is probably little you can do about it besides VLF.

/re

Shmuel Metz (Seymour J.) wrote:

In <[EMAIL PROTECTED]>, on 07/12/2005
  at 10:34 AM, Paul Gilmartin <[EMAIL PROTECTED]> said:

I find that when I go to ISPF 3.4 and type 'D' before a few dozen
data set names, my terminal is unavailable for an uncomfortably long
time during processing.

That ties into the issue of allowing multiple sessions for the same
userid. A restructuring of TSO[1] to support multiple legacy (not
Unix) address spaces could solve your problem.

[1] Including VTIOC.



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