[142915] in North American Network Operators' Group
Re: high performance open source DHCP solution?
daemon@ATHENA.MIT.EDU (George Herbert)
Wed Jul 20 01:09:34 2011
In-Reply-To: <CAAAwwbUmqqZojYe=QM6_EJH79vs35V+OMw6uh13GHdUeNqRTrQ@mail.gmail.com>
Date: Tue, 19 Jul 2011 22:08:39 -0700
From: George Herbert <george.herbert@gmail.com>
To: Jimmy Hess <mysidia@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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 / 20 DHCPRE=
NEW
> requests? =A0 =A0That doesn't sound right. =A0 So I wonder what are you m=
easuring?
>
> 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 =A0I/Os =A0+ fsync()'s =A0per second can this DHCP server handle
> that does only 20 renews?
>
> --
> -JH
>
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-- =
-george william herbert
george.herbert@gmail.com
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