Re: [zones-discuss] [smf-discuss] Possible solution to automated installation of single user patches
On Mon, Sep 01, 2008 at 07:13:56PM +0200, Renaud Manus wrote: Sure :-) Both Sun Cluster and AVS introduce new services. Some of them (eg. global-devices system/nws_scm) are dependent on milestone/single-user and add filesystem/local as their dependent. If we were to move filesystem/local into ms/single-user, it would create a dependency loop between those services and SMF doesn't allow it. eg. fs/local - ms/single-user - system/nws_scm - fs/local Perhaps we need to split fs/local? ___ zones-discuss mailing list zones-discuss@opensolaris.org
[zones-discuss] Zones CPU resource management
hello, I am currently setting up a home server. It will be my main storage server, but I will also be consolidating other applications on it (voip server, video streaming, app server, ...) I plan to use a Quad-core processor (namely the Q6600) with 8GB of RAM. I have been reading all the docs I can find about resource management but there are still some areas unclear to me: - Can capped-cpu and cpu-share be used at the same time: It there is no contention Z1 use only 3 cpu and Z2 3 cpus max, but if there is contention have 75/25% sharing? - What is ZFS cpu usage ? (How much cpu should I reserve for the global zone ?) More specifically, my setup would be something like: Global zone:ZFS storage, NFS and Samba servers VOIP Zone: SIP PBX : should always have enough processing power to handle a few calls (home setup) download zone:handles all downloads (torrent /http). Low priority. Video streaming zone : use VLC to stream videos on the network (maybe later some VOD). Video encoding zone : should use all available cpus but low priority Database Zone: MySQl and/or Postgresql App Server Zone:SAMP stack and/or Glassfish I do not expect high load on these zones (this is not a business production server, mainly a development environment and home application with few concurrent calls). I am a bit at a loss on how to implement this. Is FSS and cpu-shares enough ? Should I use resource pools ? dynamic resource pools ? Thanks for your help, Vincent ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Zones CPU resource management
Hello Vincent, From your message, it appears that you do not need to use capped-cpu. However, if you find that you have a need to use both, it will work, although there is potential to confuse Solaris and/or yourself. For example, what happens if you set cpu-shares so that a zone must get at least 25% of 4 cores, but capped-cpu=0.5? Further, setting a CPU cap can prevent a zone from using CPU cycles that are otherwise unused. Why waste your expensive CPU? You do want to ensure that each zone gets enough processing cycles to accomplish its tasks. This can be achieved with cpu-shares. You might start by setting cpu-shares to 100 for the global zone, and 10 for each of the non-global zones. If you find that the system is frequently experiencing CPU contention, and one zone isn't getting enough CPU time, just increase that zone's share quantity. You might want to give the VOIP zone 50 shares instead of 10 because of the sensitivity to computational latency. Is the VOIP software multi-threaded? If not, then it will never use more than 25-30% of the CPU power of the system in any situation. It is important that the global zone gets all it needs. Otherwise you may interfere with proper operation of key infrastructure components like the paging daemon. Also, docs.sun.com says: The capped-cpu resource and the dedicated-cpu resource are incompatible. The cpu-shares rctl and the dedicated-cpu resource are incompatible. On Tue, Sep 2, 2008 at 1:38 PM, Vincent Boisard [EMAIL PROTECTED] wrote: hello, I am currently setting up a home server. It will be my main storage server, but I will also be consolidating other applications on it (voip server, video streaming, app server, ...) I plan to use a Quad-core processor (namely the Q6600) with 8GB of RAM. I have been reading all the docs I can find about resource management but there are still some areas unclear to me: - Can capped-cpu and cpu-share be used at the same time: It there is no contention Z1 use only 3 cpu and Z2 3 cpus max, but if there is contention have 75/25% sharing? - What is ZFS cpu usage ? (How much cpu should I reserve for the global zone ?) More specifically, my setup would be something like: Global zone:ZFS storage, NFS and Samba servers VOIP Zone: SIP PBX : should always have enough processing power to handle a few calls (home setup) download zone:handles all downloads (torrent /http). Low priority. Video streaming zone : use VLC to stream videos on the network (maybe later some VOD). Video encoding zone : should use all available cpus but low priority Database Zone: MySQl and/or Postgresql App Server Zone:SAMP stack and/or Glassfish I do not expect high load on these zones (this is not a business production server, mainly a development environment and home application with few concurrent calls). I am a bit at a loss on how to implement this. Is FSS and cpu-shares enough ? Should I use resource pools ? dynamic resource pools ? Thanks for your help, Vincent ___ zones-discuss mailing list zones-discuss@opensolaris.org -- --JeffV ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] [smf-discuss] Possible solution to automated installation of single user patches
Narendra Kumar S.S wrote: Is there any particular reason, why you are not proposing to move filesystem/local to single-user milestone. That was option #1 in my list. However, there were those who objected to changing the definition of single-user mode in this way. In addition, there are these late-breaking issues with Sun Cluster et al. That looks very simple fix Yes. and will solve all the problems. No. It would address the particular breakage that we're seeing today, but would not address the systemic problem that there is no agreement on when and how these services should be run. Re-read the proposal. It describes the issues and constraints. I believe that today (even without this most recent patchadd issue) there are a number of cases where we are avoid problems only because we've been lucky, and because we've worked around the problems in a few cases. ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Zones CPU resource management
Thanks for your help, Comments below ... On 9/2/08, Jeff Victor [EMAIL PROTECTED] wrote: Hello Vincent, From your message, it appears that you do not need to use capped-cpu. However, if you find that you have a need to use both, it will work, although there is potential to confuse Solaris and/or yourself. For example, what happens if you set cpu-shares so that a zone must get at least 25% of 4 cores, but capped-cpu=0.5? Further, setting a CPU cap can prevent a zone from using CPU cycles that are otherwise unused. Why waste your expensive CPU? You do want to ensure that each zone gets enough processing cycles to accomplish its tasks. This can be achieved with cpu-shares. You might start by setting cpu-shares to 100 for the global zone, and 10 for each of the non-global zones. If you find that the system is frequently experiencing CPU contention, and one zone isn't getting enough CPU time, just increase that zone's share quantity. You might want to give the VOIP zone 50 shares instead of 10 because of the sensitivity to computational latency. Is the VOIP software multi-threaded? If not, then it will never use more than 25-30% of the CPU power of the system in any situation. How long does the system take to adjust when there is a contention? Is it noticeable ? However, I will follow your advice and experiment ... It is important that the global zone gets all it needs. Otherwise you may interfere with proper operation of key infrastructure components like the paging daemon. I have noticed that prctl show 2 types for the cpu-shares: privileged (the one we set) and system (always max value ie 65K). What's the difference ? Also, docs.sun.com says: The capped-cpu resource and the dedicated-cpu resource are incompatible. The cpu-shares rctl and the dedicated-cpu resource are incompatible. thanks again for your help, Vincent On Tue, Sep 2, 2008 at 1:38 PM, Vincent Boisard [EMAIL PROTECTED] wrote: hello, I am currently setting up a home server. It will be my main storage server, but I will also be consolidating other applications on it (voip server, video streaming, app server, ...) I plan to use a Quad-core processor (namely the Q6600) with 8GB of RAM. I have been reading all the docs I can find about resource management but there are still some areas unclear to me: - Can capped-cpu and cpu-share be used at the same time: It there is no contention Z1 use only 3 cpu and Z2 3 cpus max, but if there is contention have 75/25% sharing? - What is ZFS cpu usage ? (How much cpu should I reserve for the global zone ?) More specifically, my setup would be something like: Global zone:ZFS storage, NFS and Samba servers VOIP Zone: SIP PBX : should always have enough processing power to handle a few calls (home setup) download zone:handles all downloads (torrent /http). Low priority. Video streaming zone : use VLC to stream videos on the network (maybe later some VOD). Video encoding zone : should use all available cpus but low priority Database Zone: MySQl and/or Postgresql App Server Zone:SAMP stack and/or Glassfish I do not expect high load on these zones (this is not a business production server, mainly a development environment and home application with few concurrent calls). I am a bit at a loss on how to implement this. Is FSS and cpu-shares enough ? Should I use resource pools ? dynamic resource pools ? Thanks for your help, Vincent ___ zones-discuss mailing list zones-discuss@opensolaris.org -- --JeffV ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Zones CPU resource management
See http://tinyurl.com/5jwe3l , but here's the brief version: Basic, which can be modified by the owner of the calling process Privileged, which can be modified only by privileged (superuser) callers System, which is fixed for the duration of the operating system instance On Tue, Sep 2, 2008 at 8:01 PM, Vincent Boisard [EMAIL PROTECTED] wrote: Thanks for your help, Comments below ... On 9/2/08, Jeff Victor [EMAIL PROTECTED] wrote: Hello Vincent, From your message, it appears that you do not need to use capped-cpu. However, if you find that you have a need to use both, it will work, although there is potential to confuse Solaris and/or yourself. For example, what happens if you set cpu-shares so that a zone must get at least 25% of 4 cores, but capped-cpu=0.5? Further, setting a CPU cap can prevent a zone from using CPU cycles that are otherwise unused. Why waste your expensive CPU? You do want to ensure that each zone gets enough processing cycles to accomplish its tasks. This can be achieved with cpu-shares. You might start by setting cpu-shares to 100 for the global zone, and 10 for each of the non-global zones. If you find that the system is frequently experiencing CPU contention, and one zone isn't getting enough CPU time, just increase that zone's share quantity. You might want to give the VOIP zone 50 shares instead of 10 because of the sensitivity to computational latency. Is the VOIP software multi-threaded? If not, then it will never use more than 25-30% of the CPU power of the system in any situation. How long does the system take to adjust when there is a contention? Is it noticeable ? However, I will follow your advice and experiment ... It is important that the global zone gets all it needs. Otherwise you may interfere with proper operation of key infrastructure components like the paging daemon. I have noticed that prctl show 2 types for the cpu-shares: privileged (the one we set) and system (always max value ie 65K). What's the difference ? Also, docs.sun.com says: The capped-cpu resource and the dedicated-cpu resource are incompatible. The cpu-shares rctl and the dedicated-cpu resource are incompatible. thanks again for your help, Vincent On Tue, Sep 2, 2008 at 1:38 PM, Vincent Boisard [EMAIL PROTECTED] wrote: hello, I am currently setting up a home server. It will be my main storage server, but I will also be consolidating other applications on it (voip server, video streaming, app server, ...) I plan to use a Quad-core processor (namely the Q6600) with 8GB of RAM. I have been reading all the docs I can find about resource management but there are still some areas unclear to me: - Can capped-cpu and cpu-share be used at the same time: It there is no contention Z1 use only 3 cpu and Z2 3 cpus max, but if there is contention have 75/25% sharing? - What is ZFS cpu usage ? (How much cpu should I reserve for the global zone ?) More specifically, my setup would be something like: Global zone:ZFS storage, NFS and Samba servers VOIP Zone: SIP PBX : should always have enough processing power to handle a few calls (home setup) download zone:handles all downloads (torrent /http). Low priority. Video streaming zone : use VLC to stream videos on the network (maybe later some VOD). Video encoding zone : should use all available cpus but low priority Database Zone: MySQl and/or Postgresql App Server Zone:SAMP stack and/or Glassfish I do not expect high load on these zones (this is not a business production server, mainly a development environment and home application with few concurrent calls). I am a bit at a loss on how to implement this. Is FSS and cpu-shares enough ? Should I use resource pools ? dynamic resource pools ? -- --JeffV ___ zones-discuss mailing list zones-discuss@opensolaris.org
