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.Dd September 23, 2008 .Dt PSRSET 8 .Os .Sh NAME .Nm psrset .Nd control processor sets .Sh SYNOPSIS .Nm .Op Ar setid ... .Nm .Fl a Ar setid Ar cpuid Ar ... .Nm .Fl b Ar setid Ar pid Ar ... .Nm .Fl c Op Ar cpuid Ar ... .Nm .Fl d Ar setid .Nm .Fl e Ar setid Ar command .Nm .Fl i Op Ar setid ... .Nm .Fl p .Nm .Fl r Ar cpuid Ar ... .Nm .Fl u Ar pid Ar ... .Sh DESCRIPTION The .Nm command can be used to control and inspect processor sets.
p The system always contains at least one processor set: the default set. The default set must contain at least one online processor (CPU) at all times.
p Available options: l -tag -width indent t Fl a Assign one or more processors (CPUs) to the set .Ar setid . In the current implementation, a CPU may only be present in one set. CPU IDs are as reported and used by the .Xr cpuctl 8 command. t Fl b Bind one or more processes to the set .Ar setid . All LWPs within the processes will be affected. Bindings are inherited when new LWPs or processes are forked. However, setting a new binding on a parent process does not affect the bindings of its existing child processes. t Fl c Create a new processor set. If successful, the ID of the new set will be printed. If a list of CPU IDs is provided, those CPUs will be assigned to the set upon creation. Otherwise, the set will be created empty. t Fl d Delete the processor set specified by .Ar setid . Any LWPs bound to the set will be re-bound to the default processor set. t Fl e Execute a command within the processor set specified by .Ar setid . t Fl i List all processor sets. For each set, print the member CPUs. If .Nm is run without any options, it behaves as if .Fl i were given. t Fl p List all CPUs. For each CPU, print the associated processor set. t Fl r Remove a CPU from its current set, and return it back to the default processor set. t Fl u Bind the specified processes to the system default processor set. .El .Sh SEE ALSO .Xr pset 3 , .Xr cpuctl 8 , .Xr schedctl 8 .Sh HISTORY The .Nm command first appeared in .Nx 5.0 .