Mailing List Archive

[lvs-users] IPVS capacity
Hi all

I'm trying to figure out how many simultaneous conections can handle a
single ipvs server.

Our server has this settings
2 cores CPU at 2,8Ghz,
512 MB RAM
2.6.32 linux kernel
NAT method
ipvsadm-1.25-10.el6.x86_64
default hashing size table (2^12=4096) in kernel

It will handle one VIP to a pool of real servers providing remote
application acces to customer users

I've read the doc
http://www.linuxvirtualserver.org/performance/lvs.ps.gz (2001) so I
assume that I can expect rougly 4000 conections/sec before servers
begin to delay requests. It is correct?

I asume that it linearly depends on VIPs used, so if I set up 2VIPs I
can expect 2000 conecctions/sec per VIP

I will apreciate experiences and docs about ipvs capacity an how to
scale for larger number of conecctions

Thanks in advance
Alice
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http://www.linuxvirtualserver.org/

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Re: [lvs-users] IPVS capacity [ In reply to ]
>From my experience you can either do 50,000 TPS with tiny packets , or 850
MB/s with bigger ones.... assuming a 1GB/s pipe i.e. you can saturate the
bandwidth available.

http://blog.loadbalancer.org/what-do-you-mean-my-pipe-is-saturated/
http://haproxy.1wt.eu/10g.html

Most of our customers hit real server (cluster) limits or bandwidth limits
before stressing LVS even on our lowest end hardware which is Atom based.




On 16 March 2014 10:08, <amankiewicz@hushmail.com> wrote:

> Hi all
>
> I'm trying to figure out how many simultaneous conections can handle a
> single ipvs server.
>
> Our server has this settings
> 2 cores CPU at 2,8Ghz,
> 512 MB RAM
> 2.6.32 linux kernel
> NAT method
> ipvsadm-1.25-10.el6.x86_64
> default hashing size table (2^12=4096) in kernel
>
> It will handle one VIP to a pool of real servers providing remote
> application acces to customer users
>
> I've read the doc
> http://www.linuxvirtualserver.org/performance/lvs.ps.gz (2001) so I
> assume that I can expect rougly 4000 conections/sec before servers
> begin to delay requests. It is correct?
>
> I asume that it linearly depends on VIPs used, so if I set up 2VIPs I
> can expect 2000 conecctions/sec per VIP
>
> I will apreciate experiences and docs about ipvs capacity an how to
> scale for larger number of conecctions
>
> Thanks in advance
> Alice
> _______________________________________________
> Please read the documentation before posting - it's available at:
> http://www.linuxvirtualserver.org/
>
> LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
> Send requests to lvs-users-request@LinuxVirtualServer.org
> or go to http://lists.graemef.net/mailman/listinfo/lvs-users
>



--
Regards,

Malcolm Turnbull.

Loadbalancer.org Ltd.
Phone: +44 (0)870 443 8779
http://www.loadbalancer.org/
_______________________________________________
Please read the documentation before posting - it's available at:
http://www.linuxvirtualserver.org/

LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
Send requests to lvs-users-request@LinuxVirtualServer.org
or go to http://lists.graemef.net/mailman/listinfo/lvs-users
Re: [lvs-users] IPVS capacity [ In reply to ]
Thank you, That's much more TPS/bandwith than we expect to handle.

Regards
Alice

On domingo, 16 de marzo de 2014 at 7:05 PM, "Malcolm Turnbull"
wrote:>From my experience you can either do 50,000 TPS with tiny
packets , or 850
MB/s with bigger ones.... assuming a 1GB/s pipe i.e. you can saturate
the
bandwidth available.

http://blog.loadbalancer.org/what-do-you-mean-my-pipe-is-saturated/
http://haproxy.1wt.eu/10g.html

Most of our customers hit real server (cluster) limits or bandwidth
limits
before stressing LVS even on our lowest end hardware which is Atom
based.
On 16 March 2014 10:08, wrote:

> Hi all
>
> I'm trying to figure out how many simultaneous conections can handle
a
> single ipvs server.
>
> Our server has this settings
> 2 cores CPU at 2,8Ghz,
> 512 MB RAM
> 2.6.32 linux kernel
> NAT method
> ipvsadm-1.25-10.el6.x86_64
> default hashing size table (2^12=4096) in kernel
>
> It will handle one VIP to a pool of real servers providing remote
> application acces to customer users
>
> I've read the doc
> http://www.linuxvirtualserver.org/performance/lvs.ps.gz (2001) so I
> assume that I can expect rougly 4000 conections/sec before servers
> begin to delay requests. It is correct?
>
> I asume that it linearly depends on VIPs used, so if I set up 2VIPs
I
> can expect 2000 conecctions/sec per VIP
>
> I will apreciate experiences and docs about ipvs capacity an how to
> scale for larger number of conecctions
>
> Thanks in advance
> Alice
> _______________________________________________
> Please read the documentation before posting - it's available at:
> http://www.linuxvirtualserver.org/
>
> LinuxVirtualServer.org mailing list -
lvs-users@LinuxVirtualServer.org
> Send requests to lvs-users-request@LinuxVirtualServer.org
> or go to http://lists.graemef.net/mailman/listinfo/lvs-users
>
--
Regards,

Malcolm Turnbull.

Loadbalancer.org Ltd.
Phone: +44 (0)870 443 8779
http://www.loadbalancer.org/
_______________________________________________
Please read the documentation before posting - it's available at:
http://www.linuxvirtualserver.org/

LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
Send requests to lvs-users-request@LinuxVirtualServer.org
or go to http://lists.graemef.net/mailman/listinfo/lvs-users
_______________________________________________
Please read the documentation before posting - it's available at:
http://www.linuxvirtualserver.org/

LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
Send requests to lvs-users-request@LinuxVirtualServer.org
or go to http://lists.graemef.net/mailman/listinfo/lvs-users