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8 .TH PBIND 1M "Feb 25, 2008"
10 pbind \- control and query bindings of processes or LWPs
14 \fBpbind\fR \fB-b\fR \fIprocessor_id\fR \fIpid\fR [\fI/lwpid\fR]...
19 \fBpbind\fR \fB-e\fR \fIprocessor_id\fR \fIcmd\fR [\fIargs\fR...]
24 \fBpbind\fR [\fB-q\fR] [\fIpid\fR [\fI/lwpid\fR]]...
29 \fBpbind\fR \fB-Q\fR [\fIprocessor_id\fR]...
34 \fBpbind\fR \fB-u\fR \fIpid\fR [\fI/lwpid\fR]...
39 \fBpbind\fR \fB-U\fR [\fIprocessor_id\fR]...
44 \fBpbind\fR controls and queries bindings of processes and LWPs (lightweight
45 processes) to processors. \fBpbind\fR can also remove processor bindings that
46 were previously established.
49 When an LWP is bound to a processor, it will be executed only by that processor
50 except when the LWP requires a resource that is provided only by another
51 processor. The binding is not exclusive, that is, the processor is free to
52 execute other LWPs as well.
55 Bindings are inherited, so new LWPs and processes created by a bound LWP will
56 have the same binding. Binding an interactive shell to a processor, for
57 example, binds all commands executed by the shell.
60 The \fIprocessor_id\fR must be present and on-line. Use the
61 \fBpsrinfo(1M)\fR command to determine which processors are
65 Superusers may bind or unbind any process or LWP, while other users can bind or
66 unbind any process or LWP for which they have permission to signal, that is,
67 any process that has the same effective user ID as the user.
70 The following options are supported:
74 \fB\fB-b\fR \fIprocessor_id\fR\fR
78 Binds all or a subset of the LWPs of the specified processes to
85 \fB-e\fR \fIprocessor_id\fR
89 Execute a command while bound to \fIprocessor_id\fR.
99 Displays the bindings of the specified processes or of all processes. If a
100 process is composed of multiple LWPs which have different bindings and the LWPs
101 are not explicitly specified, the bindings of only one of the bound LWPs will
102 be displayed. The bindings of a subset of LWPs can be displayed by appending
103 "/lwpids" to the process \fBID\fRs. Multiple LWPs may be selected using "-" and
104 "," delimiters. See EXAMPLES.
114 Displays the LWPs bound to the specified list of processors, or all LWPs with
115 processor bindings. For processes composed of multiple LWPs, the bindings of
116 individual LWPs will be displayed.
126 Removes the bindings of all or a subset of the LWPs of the specified processes,
127 allowing them to be executed on any on-line processor.
137 Removes the bindings of all LWPs bound to the specified list of processors, or
138 to any processor if no argument is specified.
143 The following operands are supported:
151 The process \fBID\fR of the process to be controlled or queried.
161 The set of LWP IDs of the specified process to be controlled or queried. The
162 syntax for selecting \fBLWP\fR \fBID\fRs is as follows:
166 2,3,4-8 LWP IDs 2, 3, and 4 through 8
167 -4 LWPs whose IDs are 4 or below
168 4- LWPs whose IDs are 4 or above
177 \fB\fIprocessor_id\fR\fR
181 The processor \fBID\fR of the processor to be controlled or queried.
187 \fB\fIcmd\fR \fI[args...]\fR
191 The command to execute along with optional arguments.
196 \fBExample 1 \fRBinding Processes
199 The following example binds processes 204 and 223 to processor 2:
204 example% \fBpbind -b 2 204 223\fR
205 process id 204: was 2, now 2
206 process id 223: was 3, now 2
212 \fBExample 2 \fRUnbinding a Process
215 The following example unbinds process 204:
220 example% \fBpbind -u 204\fR
226 \fBExample 3 \fRQuerying Bindings
229 The following example queries bindings. It demonstrates that process 1 is bound
230 to processor 0, process 149 has at least one LWP bound to CPU3, and process 101
236 example% \fBpbind -q 1 149 101\fR
239 process id 101: not bound
245 \fBExample 4 \fRQuerying LWP Bindings
248 The following example queries bindings of LWPs. It demonstrates that LWP 1 of
249 process 149 is bound to CPU3, and LWP 2 of process 149 is not bound.
254 example% \fBpbind -q 149/1-2\fR
256 lwp id 149/2: not bound
262 \fBExample 5 \fRQuerying LWP Bindings for Processor 2:
265 The following example queries all LWPs bound to processor 2:
270 example% \fBpbind -Q 2\fR
278 \fBExample 6 \fRExecuting a bound command:
281 The following example executes ls while bound to processor 6:
286 example% \fBpbind -e 6 ls -la
293 The following exit values are returned:
301 Successful completion.
316 \fBpsradm\fR(1M), \fBpsrinfo\fR(1M), \fBpsrset\fR(1M), \fBprocessor_bind\fR(2),
317 \fBprocessor_info\fR(2), \fBsysconf\fR(3C), \fBattributes\fR(5)
321 \fB\fBpbind: cannot query pid 31: No such process\fR\fR
325 The process specified did not exist or has exited.
331 \fB\fBpbind: cannot bind pid 31: Not owner\fR\fR
335 The user does not have permission to bind the process.
341 \fB\fBpbind: cannot bind pid 31: Invalid argument\fR\fR
345 The specified processor is not on-line.
351 \fBpbind: failed to exec\fR \fIcmd\fR
355 Could not resolve the \fIcmd\fR from \fBPATH\fR.