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<DIV dir=ltr align=left><SPAN class=746312317-23022009><FONT face=Arial
color=#0000ff size=2>How many leases do you have in your dhcpd.conf? This
setting seemed to only really be noticable with 10k or more leases. You should
be fine with 3.1.2. </FONT></SPAN></DIV>
<DIV> </DIV>
<DIV align=left>Brad Dameron<BR><FONT color=#808080>Senior Systems
Engineer</FONT></DIV>
<DIV align=left><SPAN class=746312317-23022009><FONT
color=#808080>Clearw're</FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> dhcp-users-bounces@lists.isc.org
[mailto:dhcp-users-bounces@lists.isc.org] <B>On Behalf Of </B>T
MANIKANDAN-PKXR74<BR><B>Sent:</B> Friday, February 20, 2009 7:18
AM<BR><B>To:</B> Users of ISC DHCP<BR><B>Subject:</B> Source Tar Ball
Installation <BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009>Hi,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009> Based on the
comments received from Brad earlier on tuning DHCP for max performance, I
decided to upgrade My DHCP server to 3.1.2 from 3.0.5 and also include the HASH
adjustment for getting max performance.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009> My
initial version 3.0.5 is from Linux OS didn't have any dhcpd.h file,
</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009>I downloaded the
source tar ball from <A
href="http://ftp.isc.org/isc/dhcp/dhcp-3.1.2.tar.gz"><FONT
face="Times New Roman"
size=3>http://ftp.isc.org/isc/dhcp/dhcp-3.1.2.tar.gz</FONT></A> to /tmp/
directory and ran the following commands to build the new
release</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009>tar -zxvf
dhcp-3.1.2.tar.gz</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009>1.
./configure</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009>2.
make</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009>3.make
install</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009>and also I made the
following changes in syslog.conf </SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009>local6.*
-/var/log/dhcpd.log</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009>and changed the
LEASE_HASH_ from 100003 to 250007, </SPAN></FONT><FONT face=Arial size=2><SPAN
class=363215514-20022009>the file I edited is in the location
</SPAN></FONT><FONT face=Arial size=2><SPAN
class=363215514-20022009><STRONG>/tmp/dhcp-3.1.2/includes/</STRONG><BR></DIV></SPAN></FONT>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009>initially the
performance was around 40 Five way hand shakes per second from 3.0.5 and after
installing 3.1.2 it increased to 61 five way handshakes per second , and
some how I feel the changes made in hash adjustment is not effective, how do I
verify this change. or I need to do some additional steps in order to make the
hash adjustment effective</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009>did I make any
mistake in installing 3.1.2 </SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009>should I edit any
other file prior to configure or make or make install.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009>how the changes in
hash will be effective.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009>also in ver 3.0.5
from Linux OS I didn't find /includes/dhcpd.h at all is it normal
??</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=363215514-20022009>Request to guide me
in this regard.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009>Regards</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009>Mani</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN
class=363215514-20022009></SPAN></FONT> </DIV></DIV></BODY></HTML>