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TIME_CONTROL is a system parameter that controls SMP debugging functions. This special parameter is use by VSI and is subject to change. Do not change this parameter unless VSI recommends that you do so.

TIME_CONTROL is an SMP bit mask parameter that controls debugging functions. The following bits are defined:

Bit Description
0 Obsolete
1 (EXE$V_SANITY) Disables the SMP sanity timer support
2 (EXE$V_NOSPINWAIT) Disables the functional behavior of the SMP spinwait support

TIME_CONTROL is a DYNAMIC parameter.