IBM Mainframe Forum

Is there a way under TSO/ISPF to get the unix SLEEP command to sleep for less than one second?
I tried various methods but no joy.
It can be that this implementation of the SLEEP command does not support subsecond invocation?

I think the "normal" sleep is only in an integer number of seconds (which can be expressed as minutes or hours). Some implementations allow the "number of seconds" to be fractional, but probably not OMVS. "man sleep" should say exactly (or implicitly).

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Steve Coalbran (Fri Oct 07, 2016 11:14 am)

I did the RTFM on the manual as SA23-2280-02 but it was not precise as to whether subseconds were allowed.
I see that under certain implementations (e.g. bsh) it is.
I will try something else.
I am guessing that this could be done in assembler using ECB but my ASM sadly lapsed many years ago!

Reading the Fine Manual, I'd say for sure it has to be integers, only because that is "normal" behaviour, and no hint of doing otherwise. Nothing useful from searching for "micro" or "milli" or anything associated .

issuing man sleep on apple and on 3 different linux distributions
reported for all ...



so I guess that issuing the man sleep under Unix System Services would return the same

I replaced the potential with a
No melt-down in the CPU.