Re: [zones-discuss] FSS and processor sets
Ketan, Adding to Steffen's comments: if you are not using zones, or if you are configuring multiple zones to share a processor set, you would use the poolcfg(1M) command to set pool.scheduler to FSS. See also libpool(3LIB) and resource_controls(5). On Thu, Jun 11, 2009 at 9:02 AM, Steffen Weiberle wrote: > On 06/11/09 08:38, Ketan wrote: >> >> I read somewhere which says """FSS can be assigned to processor sets, >> resulting in more sensitive control of priorities on a server than raw >> processor sets"" can any one tell me how we can assign FSS to processor set >> and how it works ? >> Thanx . > > If you create manual resource pools, you can also assign shares to the zones > assigned to the pool so they can 'share' the CPUs in the pool. > > So if you create a resource pool P with N CPUs, and you assign zones a, b, > and c to pool P, with shares of 100, 200, and 300, respectively, when all N > CPUs are utilized by the zones, the scheduler with give zone a 100/600*N, > zone b 200/600*N, and zone c 300/600*N of the resources (barring other > constraints such as blocking on I/O). > > This does not work if you use the dedicated-cpu directive, as it create a > resource pool for the zone, and there is one-to-one relationship between the > pool and the zone. > > Within a zone you can also use FSS for projects. > > Steffen > ___ > zones-discuss mailing list > zones-discuss@opensolaris.org > -- --JeffV ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] FSS and processor sets
On 06/11/09 08:38, Ketan wrote: I read somewhere which says """FSS can be assigned to processor sets, resulting in more sensitive control of priorities on a server than raw processor sets"" can any one tell me how we can assign FSS to processor set and how it works ? Thanx . If you create manual resource pools, you can also assign shares to the zones assigned to the pool so they can 'share' the CPUs in the pool. So if you create a resource pool P with N CPUs, and you assign zones a, b, and c to pool P, with shares of 100, 200, and 300, respectively, when all N CPUs are utilized by the zones, the scheduler with give zone a 100/600*N, zone b 200/600*N, and zone c 300/600*N of the resources (barring other constraints such as blocking on I/O). This does not work if you use the dedicated-cpu directive, as it create a resource pool for the zone, and there is one-to-one relationship between the pool and the zone. Within a zone you can also use FSS for projects. Steffen ___ zones-discuss mailing list zones-discuss@opensolaris.org
[zones-discuss] FSS and processor sets
I read somewhere which says """FSS can be assigned to processor sets, resulting in more sensitive control of priorities on a server than raw processor sets"" can any one tell me how we can assign FSS to processor set and how it works ? Thanx . -- This message posted from opensolaris.org ___ zones-discuss mailing list zones-discuss@opensolaris.org
