Source Tar Ball Installation
Tom Schmitt
TomSchmitt at gmx.de
Tue Mar 3 15:45:59 UTC 2009
Hi,
one questions to your numbers:
How (using what tool) do you measure the number of handshakes per second?
Tom.
-------- Original-Nachricht --------
> Datum: Mon, 2 Mar 2009 14:12:11 +0800
> Von: "T MANIKANDAN-PKXR74" <manikandan.t at motorola.com>
> An: "Users of ISC DHCP" <dhcp-users at lists.isc.org>
> Betreff: RE: Source Tar Ball Installation
> Hi ,
>
> To conclude this mail Chain, we have done the testing based on the
> recommendation we received from experts.
>
> 1. To increase the Capacity performance of DHCP server
>
> disabling Ping-check, and writing the leases to ram disk increase
> the capacity approximately 25X (25 Times the normal Performance) , By
> dividing the 10.0/8 into various pools with max of 251 per pool you can
> achieve the 25 X capacity performance.
>
>
> 2. To increase the Performance of service startup time
>
> Increase the Hash table size for LEASE_HASH_SIZE in
> /includes/dhcpd.h
>
> Incase any of my understandings is to be changed or reviewed please
> mention your comments.
>
>
> Regards
> Mani
>
>
> ________________________________
>
> From: T MANIKANDAN-PKXR74
> Sent: Friday, February 27, 2009 10:05 AM
> To: 'Users of ISC DHCP'
> Subject: RE: Source Tar Ball Installation
>
>
> Hi,
>
> The LEASE_HASH_SIZE parameter really improves the service startup
> time for my 10.0/8 network from 20 minutes to some seconds but I didn't
> see any improvement in the 5 way handshakes performance, this is my
> observation.
>
> and by implementing ping-check off and writing the leases to a ram
> disk instead of Hard disk betters the performance for 10.0/24 subnet
> around 2300 5 way handshakes per second and for 10.0/8 the performance
> remains the same around 92 five way handshakes per second.
>
> Is there a way to increase the performance when the subnet is 10.0/8
> why the performance is degrading ?? any help is appreciated.
>
> Thanks & Regards
> Mani
>
>>
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