nanog mailing list archives
Re: high performance open source DHCP solution?
From: Nick Colton <ncolton () allophone net>
Date: Wed, 20 Jul 2011 08:31:23 -0600
We were seeing similar issues with low leases, moved the dhcpd.leases file to a ramdisk and went from ~200 leases per second to something like 8,000 leases per second. On Tue, Jul 19, 2011 at 11:08 PM, George Herbert <george.herbert () gmail com>wrote:
220-ish per second sounds roughly like a 1-disk (or 2 mirrored disk) IOPS problem, personally... But any number of other things could be affecting it. The number should be thousands if your disk / filesytem RAM cache / server configuration aren't inadequate... On Tue, Jul 19, 2011 at 8:54 PM, Jimmy Hess <mysidia () gmail com> wrote:On Tue, Jul 19, 2011 at 9:21 PM, Rogelio <scubacuda () gmail com> wrote:The free DHCP solution, ISC, seems to be having scaling issues (i.e. handling only about 200 DHCPDISCOVER and 20 DHCPRENEW requests), and I was wondering if anyone had any open source suggestions of solutions that could scale much better?Where do you get that ISC DHCPD only handles 200 DHCPDISCOVER / 20DHCPRENEWrequests? That doesn't sound right. So I wonder what are youmeasuring?Is this a number of answers per second your implementation of ISC DHCPD is providing successfully? There are architectural facts about any environment besides what software is performing the DHCP task. How many I/Os + fsync()'s per second can this DHCP server handle that does only 20 renews? -- -JH _____ NANOG mailing list NANOG () nanog org https://mailman.nanog.org/mailman/listinfo/nanog-- -george william herbert george.herbert () gmail com _____ NANOG mailing list NANOG () nanog org https://mailman.nanog.org/mailman/listinfo/nanog
_____ NANOG mailing list NANOG () nanog org https://mailman.nanog.org/mailman/listinfo/nanog
Current thread:
- high performance open source DHCP solution? Rogelio (Jul 19)
- Re: high performance open source DHCP solution? Jimmy Hess (Jul 19)
- Re: high performance open source DHCP solution? George Herbert (Jul 19)
- Re: high performance open source DHCP solution? Nick Colton (Jul 20)
- Re: high performance open source DHCP solution? Jimmy Hess (Jul 20)
- Re: high performance open source DHCP solution? Walter Keen (Jul 20)
- Re: high performance open source DHCP solution? Joel Jaeggli (Jul 20)
- Re: high performance open source DHCP solution? George Herbert (Jul 20)
- Re: high performance open source DHCP solution? Eugen Leitl (Jul 20)
- Re: high performance open source DHCP solution? PC (Jul 21)
- Re: high performance open source DHCP solution? Florian Weimer (Jul 25)
- Re: high performance open source DHCP solution? Charles Morris (Jul 21)
- Re: high performance open source DHCP solution? Nick Colton (Jul 21)
- Re: high performance open source DHCP solution? George Herbert (Jul 19)
- Re: high performance open source DHCP solution? Jimmy Hess (Jul 19)
- Re: high performance open source DHCP solution? Jay Ashworth (Jul 20)