Re: [zones-discuss] dynamic pool objective, default
Brendan Gregg (a Sun Consultant from Australia) created a wonderful web page with examples and screen dump and showing how this works, how to set it up and how to test it. http://users.tpg.com.au/bdgcvb/zones.html You might find it very useful to start with and set one up. Greg Tillman wrote: Sorry, i'm fairly new to zones, trying to figure out what is probably pretty simple. If i set up pools for each zone with associated processor sets, each with a pset.min and pset.max, but don't set a dynamic pool objective, is there a default objective? or do the zones run with the minimum specified number of cpu's and never change? Thanks This message posted from opensolaris.org ___ zones-discuss mailing list zones-discuss@opensolaris.org -- Michael Barto Software Architect LogiQwest Inc. 16458 Bolsa Chica Street, # 15 Huntington Beach, CA 92649 http://www.logiqwest.com/ [EMAIL PROTECTED] Tel: 714 377 3705 Fax: 714 840 3937 Cell: 714 883 1949 'tis a gift to be simple This e-mail may contain LogiQwest proprietary information and should be treated as confidential. ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] dynamic pool objective, default
You don't have to enable Dynamic Resource Pools to associate a zone with a pset. Resource Pools is a standalone feature. Dynamic Resource Pools add dynamic (i.e. goal-satisfying re-configurations) behaviour to Resource Pools. Read what I said about CPU allocation and look at the comments in the code reference that I mailed earlier. Gary On Mon, Oct 23, 2006 at 11:23:46AM -0400, Tillman, Gregory wrote: > Dynamic pools pretty much have to be enabled to associate a pset with a > zone, don't they? So if I set pset.min=1, pset.max=2, it will run with > 1 CPU because I don't have a resource optimization objective? Just > trying to make sure I understand this. thanks. > > - greg > > > -Original Message- > From: Gary Pennington [mailto:[EMAIL PROTECTED] On Behalf Of > Gary Pennington > Sent: Monday, October 23, 2006 11:23 AM > To: Tillman, Gregory > Cc: zones-discuss@opensolaris.org > Subject: Re: [zones-discuss] dynamic pool objective, default > > There is no default objective. Each pset will have at least the minimum > number of CPUs, but may have more. No pset, other than the default pset, > can have more CPUs than pset.max. The number of CPUs allocated to a set > will not change unless someone intervenes manually (e.g. by transferring > a CPU between sets) or a resource optimisation objective is set and > dynamic pools are enabled. > > If you want more details about libpool's allocation strategy take a look > at: > > http://cvs.opensolaris.org/source/xref/on/usr/src/lib/libpool/common/poo > l_commit.c > > In particular the comment at line 902 for the pset_allocate_imp() > function should be enlightening. > > Gary > > On Mon, Oct 23, 2006 at 07:55:43AM -0700, Greg Tillman wrote: > > Sorry, i'm fairly new to zones, trying to figure out what is probably > pretty simple. If i set up pools for each zone with associated > processor sets, each with a pset.min and pset.max, but don't set a > dynamic pool objective, is there a default objective? or do the zones > run with the minimum specified number of cpu's and never change? > > Thanks > > > > > > This message posted from opensolaris.org > > ___ > > zones-discuss mailing list > > zones-discuss@opensolaris.org > > -- > Gary Pennington > Solaris Kernel Development, > Sun Microsystems > [EMAIL PROTECTED] > ___ > zones-discuss mailing list > zones-discuss@opensolaris.org -- Gary Pennington Solaris Kernel Development, Sun Microsystems [EMAIL PROTECTED] ___ zones-discuss mailing list zones-discuss@opensolaris.org
RE: [zones-discuss] dynamic pool objective, default
Dynamic pools pretty much have to be enabled to associate a pset with a zone, don't they? So if I set pset.min=1, pset.max=2, it will run with 1 CPU because I don't have a resource optimization objective? Just trying to make sure I understand this. thanks. - greg -Original Message- From: Gary Pennington [mailto:[EMAIL PROTECTED] On Behalf Of Gary Pennington Sent: Monday, October 23, 2006 11:23 AM To: Tillman, Gregory Cc: zones-discuss@opensolaris.org Subject: Re: [zones-discuss] dynamic pool objective, default There is no default objective. Each pset will have at least the minimum number of CPUs, but may have more. No pset, other than the default pset, can have more CPUs than pset.max. The number of CPUs allocated to a set will not change unless someone intervenes manually (e.g. by transferring a CPU between sets) or a resource optimisation objective is set and dynamic pools are enabled. If you want more details about libpool's allocation strategy take a look at: http://cvs.opensolaris.org/source/xref/on/usr/src/lib/libpool/common/poo l_commit.c In particular the comment at line 902 for the pset_allocate_imp() function should be enlightening. Gary On Mon, Oct 23, 2006 at 07:55:43AM -0700, Greg Tillman wrote: > Sorry, i'm fairly new to zones, trying to figure out what is probably pretty simple. If i set up pools for each zone with associated processor sets, each with a pset.min and pset.max, but don't set a dynamic pool objective, is there a default objective? or do the zones run with the minimum specified number of cpu's and never change? > Thanks > > > This message posted from opensolaris.org > ___ > zones-discuss mailing list > zones-discuss@opensolaris.org -- Gary Pennington Solaris Kernel Development, Sun Microsystems [EMAIL PROTECTED] ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] dynamic pool objective, default
There is no default objective. Each pset will have at least the minimum number of CPUs, but may have more. No pset, other than the default pset, can have more CPUs than pset.max. The number of CPUs allocated to a set will not change unless someone intervenes manually (e.g. by transferring a CPU between sets) or a resource optimisation objective is set and dynamic pools are enabled. If you want more details about libpool's allocation strategy take a look at: http://cvs.opensolaris.org/source/xref/on/usr/src/lib/libpool/common/pool_commit.c In particular the comment at line 902 for the pset_allocate_imp() function should be enlightening. Gary On Mon, Oct 23, 2006 at 07:55:43AM -0700, Greg Tillman wrote: > Sorry, i'm fairly new to zones, trying to figure out what is probably pretty > simple. If i set up pools for each zone with associated processor sets, each > with a pset.min and pset.max, but don't set a dynamic pool objective, is > there a default objective? or do the zones run with the minimum specified > number of cpu's and never change? > Thanks > > > This message posted from opensolaris.org > ___ > zones-discuss mailing list > zones-discuss@opensolaris.org -- Gary Pennington Solaris Kernel Development, Sun Microsystems [EMAIL PROTECTED] ___ zones-discuss mailing list zones-discuss@opensolaris.org
[zones-discuss] dynamic pool objective, default
Sorry, i'm fairly new to zones, trying to figure out what is probably pretty simple. If i set up pools for each zone with associated processor sets, each with a pset.min and pset.max, but don't set a dynamic pool objective, is there a default objective? or do the zones run with the minimum specified number of cpu's and never change? Thanks This message posted from opensolaris.org ___ zones-discuss mailing list zones-discuss@opensolaris.org
