Re: [Vserver] Maximum guest on one host
Thank you Adrien and Herbert for the links. I had already found those links except the Solucorp link. The solucorp link explains exactly what unification is doing, and the ramifications, in slightly more detail. I have more detailed questions; however, I'll save them for a new thread. Thanks again. John On 12/3/06, Herbert Poetzl [EMAIL PROTECTED] wrote: On Sun, Dec 03, 2006 at 10:47:11PM -0600, John Alberts wrote: I don't mean to hijack the thread here, but unification as a way to help his resource utilization, could someone please point me to a good resource for unification? http://linux-vserver.org/Special:Search?search=unification http://linux-vserver.org/Frequently_Asked_Questions#What_is_Unification_.28vunify.29.3F http://oldwiki.linux-vserver.org/alpha+util-vserver I have searched the vserver wiki, but there doesn't really seem to be anything on how to setup and use unification. Also, does unification change the upgrade/maintenance process? that really depends, with recent kernel versions (see http://linux-vserver.org/Feature_Matrix) CoW is supported for unified guests, which basically doesn't require any additional handling, except for a sweep through the files every now and then to re-unify common files ... if the guest maintenance is done from the host, older setups will benefit without giving up any freedom, otherwise you should know that the guest distro handles the immutable but unlinkable files gracefully, otherwise you'll get complaints from the guest admin ... HTH, Herbert Thanks John On 12/3/06, Herbert Poetzl [EMAIL PROTECTED] wrote: On Sun, Dec 03, 2006 at 02:16:55PM -0500, Adrien Laurent wrote: Hi, I have a project of giving away free voip servers using vserver. Each servers will be a minimal centos installation with few additionnal packages. you should make sure that you utilize unification in this case, as it will probably be the best shared resource in your setup (only config files will differ) so given the server is configured well, and all guests are 'idle' you can probably put 300+ there here some tips _for your_ setup: - make sure to use unification (saves disk space and most important memory for mappings and caches) - reduce the number of guest processes, maybe even to a single process (the VoIP app) plus a fake init - configure higher HZ values (1000Hz) disable preemption, get apic running, configure the hard cpu scheduler for timeslicing HTH, Herbert They will all have a public ip - no firewall. Considering that all the servers are idle - how many of them can a regular server (Pentium 3.0Ghz - 2go ram) handle ? Thanks, Adrien -- Adrien Laurent Chief Information Officer (514) 284-2020 x 202 [EMAIL PROTECTED] www.modulis.ca Technical questions? [EMAIL PROTECTED] ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
[Vserver] Maximum guest on one host
Hi, I have a project of giving away free voip servers using vserver. Each servers will be a minimal centos installation with few additionnal packages. They will all have a public ip - no firewall. Considering that all the servers are idle - how many of them can a regular server (Pentium 3.0Ghz - 2go ram) handle ? Thanks, Adrien -- Adrien Laurent Chief Information Officer (514) 284-2020 x 202 [EMAIL PROTECTED] www.modulis.ca Technical questions? [EMAIL PROTECTED] ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Maximum guest on one host
On Sunday 03 December 2006 14:16, Adrien Laurent wrote: we have one centos64 guest running and judging by that one, all idle doing nothing, loading nothing other than requirements to boot, my guess is 150-200.. but if activity/applications get loaded that may drop to 100 or so. these are just rough guesses on my part.. i am sure someone has a more scientific method to determine this, or maybe has something similar they can quote from experience. Hi, I have a project of giving away free voip servers using vserver. Each servers will be a minimal centos installation with few additionnal packages. They will all have a public ip - no firewall. Considering that all the servers are idle - how many of them can a regular server (Pentium 3.0Ghz - 2go ram) handle ? Thanks, Adrien -- Adrien Laurent Chief Information Officer (514) 284-2020 x 202 [EMAIL PROTECTED] www.modulis.ca Technical questions? [EMAIL PROTECTED] ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Chuck ...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. The Book of John, chapter 1, page 1, and end of book ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Maximum guest on one host
On Sun, Dec 03, 2006 at 02:16:55PM -0500, Adrien Laurent wrote: I have a project of giving away free voip servers using vserver. Interesting project. This has been one of my product ideas (for-profit, however). Each servers will be a minimal centos installation with few additionnal packages. They will all have a public ip - no firewall. Is this SIP? Asterisk? Considering that all the servers are idle - how many of them can a regular server (Pentium 3.0Ghz - 2go ram) handle ? How much would fit into a 4 GByte 2 GHz Opteron system? -- Eugen* Leitl a href=http://leitl.org;leitl/a http://leitl.org __ ICBM: 48.07100, 11.36820http://www.ativel.com 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE signature.asc Description: Digital signature ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Maximum guest on one host
On 12/3/06, Eugen Leitl [EMAIL PROTECTED] wrote: On Sun, Dec 03, 2006 at 02:16:55PM -0500, Adrien Laurent wrote: I have a project of giving away free voip servers using vserver. Interesting project. This has been one of my product ideas (for-profit, however). we'll keep it non-profit. If we have the ressources we might also provide free north american communications Each servers will be a minimal centos installation with few additionnal packages. They will all have a public ip - no firewall. Is this SIP? Asterisk? yes, sip/iax with asterisk Considering that all the servers are idle - how many of them can a regular server (Pentium 3.0Ghz - 2go ram) handle ? How much would fit into a 4 GByte 2 GHz Opteron system? -- Eugen* Leitl a href=http://leitl.org;leitl/a http://leitl.org __ ICBM: 48.07100, 11.36820http://www.ativel.com 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.2.2 (GNU/Linux) iD8DBQFFcytOdbAkQ4sp9r4RAnLZAKCPlWVzeojFjcEZ7OtZO5Gono4BuACgiuSA eZHR8H4iEq4t7mhk9viVHR0= =6reb -END PGP SIGNATURE- ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver -- Adrien Laurent Chief Information Officer (514) 284-2020 x 202 [EMAIL PROTECTED] www.modulis.ca Technical questions? [EMAIL PROTECTED] ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Maximum guest on one host
On Sun, Dec 03, 2006 at 02:16:55PM -0500, Adrien Laurent wrote: Hi, I have a project of giving away free voip servers using vserver. Each servers will be a minimal centos installation with few additionnal packages. you should make sure that you utilize unification in this case, as it will probably be the best shared resource in your setup (only config files will differ) so given the server is configured well, and all guests are 'idle' you can probably put 300+ there here some tips _for your_ setup: - make sure to use unification (saves disk space and most important memory for mappings and caches) - reduce the number of guest processes, maybe even to a single process (the VoIP app) plus a fake init - configure higher HZ values (1000Hz) disable preemption, get apic running, configure the hard cpu scheduler for timeslicing HTH, Herbert They will all have a public ip - no firewall. Considering that all the servers are idle - how many of them can a regular server (Pentium 3.0Ghz - 2go ram) handle ? Thanks, Adrien -- Adrien Laurent Chief Information Officer (514) 284-2020 x 202 [EMAIL PROTECTED] www.modulis.ca Technical questions? [EMAIL PROTECTED] ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Maximum guest on one host
I don't mean to hijack the thread here, but unification as a way to help his resource utilization, could someone please point me to a good resource for unification? I have searched the vserver wiki, but there doesn't really seem to be anything on how to setup and use unification. Also, does unification change the upgrade/maintenance process? Thanks John On 12/3/06, Herbert Poetzl [EMAIL PROTECTED] wrote: On Sun, Dec 03, 2006 at 02:16:55PM -0500, Adrien Laurent wrote: Hi, I have a project of giving away free voip servers using vserver. Each servers will be a minimal centos installation with few additionnal packages. you should make sure that you utilize unification in this case, as it will probably be the best shared resource in your setup (only config files will differ) so given the server is configured well, and all guests are 'idle' you can probably put 300+ there here some tips _for your_ setup: - make sure to use unification (saves disk space and most important memory for mappings and caches) - reduce the number of guest processes, maybe even to a single process (the VoIP app) plus a fake init - configure higher HZ values (1000Hz) disable preemption, get apic running, configure the hard cpu scheduler for timeslicing HTH, Herbert They will all have a public ip - no firewall. Considering that all the servers are idle - how many of them can a regular server (Pentium 3.0Ghz - 2go ram) handle ? Thanks, Adrien -- Adrien Laurent Chief Information Officer (514) 284-2020 x 202 [EMAIL PROTECTED] www.modulis.ca Technical questions? [EMAIL PROTECTED] ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
Re: [Vserver] Maximum guest on one host
On Sun, Dec 03, 2006 at 10:47:11PM -0600, John Alberts wrote: I don't mean to hijack the thread here, but unification as a way to help his resource utilization, could someone please point me to a good resource for unification? http://linux-vserver.org/Special:Search?search=unification http://linux-vserver.org/Frequently_Asked_Questions#What_is_Unification_.28vunify.29.3F http://oldwiki.linux-vserver.org/alpha+util-vserver I have searched the vserver wiki, but there doesn't really seem to be anything on how to setup and use unification. Also, does unification change the upgrade/maintenance process? that really depends, with recent kernel versions (see http://linux-vserver.org/Feature_Matrix) CoW is supported for unified guests, which basically doesn't require any additional handling, except for a sweep through the files every now and then to re-unify common files ... if the guest maintenance is done from the host, older setups will benefit without giving up any freedom, otherwise you should know that the guest distro handles the immutable but unlinkable files gracefully, otherwise you'll get complaints from the guest admin ... HTH, Herbert Thanks John On 12/3/06, Herbert Poetzl [EMAIL PROTECTED] wrote: On Sun, Dec 03, 2006 at 02:16:55PM -0500, Adrien Laurent wrote: Hi, I have a project of giving away free voip servers using vserver. Each servers will be a minimal centos installation with few additionnal packages. you should make sure that you utilize unification in this case, as it will probably be the best shared resource in your setup (only config files will differ) so given the server is configured well, and all guests are 'idle' you can probably put 300+ there here some tips _for your_ setup: - make sure to use unification (saves disk space and most important memory for mappings and caches) - reduce the number of guest processes, maybe even to a single process (the VoIP app) plus a fake init - configure higher HZ values (1000Hz) disable preemption, get apic running, configure the hard cpu scheduler for timeslicing HTH, Herbert They will all have a public ip - no firewall. Considering that all the servers are idle - how many of them can a regular server (Pentium 3.0Ghz - 2go ram) handle ? Thanks, Adrien -- Adrien Laurent Chief Information Officer (514) 284-2020 x 202 [EMAIL PROTECTED] www.modulis.ca Technical questions? [EMAIL PROTECTED] ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver ___ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
