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Full Discussion: Assign a process to a core on start
Operating Systems Solaris Assign a process to a core on start Post 302910727 by jlliagre on Sunday 27th of July 2014 05:58:18 PM
Old 07-27-2014
Quote:
Originally Posted by sreejesh
In Ubuntu it is possible to start a process in a specified core using taskset command (taskset 0 myproc it will execute myproc in core 0).
It won't. You should actually run
Code:
taskset 1 myproc

to bind your process to core #0.
Quote:
I know it is possible a process(pid) can bind to a core using pbind. But my requirement is to start a process in a specified core.

How it is possible in Solaris?
You can still use pbind. Just wrap your command with a script that bind itself to the required core then execute the command. As a processor binding is inherited, that would fulfill the requirement. eg:

Code:
#!/bin/ksh
pbind -b 0 $$
exec myproc "$@"

Beware that achenle's processor set suggestion (psrset) is about exclusive processor binding while both Linux taskset and Solaris pbind create non-exclusive binding, i.e. the processor can still be used by other processes. This might not be what you expect.
This User Gave Thanks to jlliagre For This Post:
sreejesh
 

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LEARN ABOUT FREEBSD

gcore

GCORE(1)						    BSD General Commands Manual 						  GCORE(1)

NAME

     gcore -- get core images of running process

SYNOPSIS

     gcore [-f] [-s] [-c core] [executable] pid

DESCRIPTION

     The gcore utility creates a core image of the specified process, suitable for use with gdb(1).  By default, the core is written to the file
     ``core.<pid>''.  The process identifier, pid, must be given on the command line.

     The following options are available:

     -c      Write the core file to the specified file instead of ``core.<pid>''.

     -f      Dumps all available segments, excluding only malformed and undumpable segments.  Unlike the default invocation, this flag dumps map-
	     pings of devices which may invalidate the state of device transactions or trigger other unexpected behavior.  As a result, this flag
	     should only be used when the behavior of the application and any devices it has mapped is fully understood and any side effects can
	     be controlled or tolerated.

     -s      Stop the process while gathering the core image, and resume it when done.	This guarantees that the resulting core dump will be in a
	     consistent state.	The process is resumed even if it was already stopped.	The same effect can be achieved manually with kill(1).

FILES

     core.<pid> 	the core image

HISTORY

     A gcore utility appeared in 4.2BSD.

BUGS

     Because of the ptrace(2) usage gcore may not work with processes which are actively being investigated with truss(1) or gdb(1).  Addition-
     ally, interruptable sleeps may exit with EINTR.

     The gcore utility is not compatible with the original 4.2BSD version.

BSD
								   July 14, 2010							       BSD
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