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The scheduler uses fc_dptbl(4), the fixed class scheduler (or dispatcher) parameter table, to manage fixed class LWPs. A default version of fc_dptbl is delivered with the system, and you can change it to suit local needs. First, save a backup copy of the default version of fc_dptbl. fc_dptbl is specified in the space.c file in the /etc/conf/pack.d/fc directory. It is automatically built into the kernel as part of system configuration.
You can change the size and values of fc_dptbl depending on your local needs. The default values have a long history of good performance over a wide range of environments. Changing the values is not likely to help much, and inappropriate values can have a dramatic negative effect on system performance.
The fc_dptbl has only two columns, one for global priorities and the other for the time slice (or quantum). For a discussion of the table entries, see ``Time-Sharing parameter table ts_dptbl''.