Velocity Reviews - Computer Hardware Reviews

Velocity Reviews > Newsgroups > Computing > Windows 64bit > Weired Performance Issue

Thread Tools

Weired Performance Issue

Posts: n/a
Dear All,

We are a large financial institution having IT solutions over diverse
platforms. Coming to the point we have a set of ASP.Net applications
that were running on Dell Power Edge 1950, Windows 2003 32 Bit
Standard Edition Service Pack 2 . The applications performance were

Later Management has decided to migrate the applications over Dell
R910 Server, Windows 2008 R2 64 Bit Server Standard with service pack
1. The migration steps were just to install all the software
components, no change has been made in the applications, the
applications were simply copy pasted to the new environment.

Since the migration the users start raising issues regarding
application performance. We have started looking all the layers
involved and finally come to the conclusion that application is
getting slow because the response time of the queries were
significantly slow over new 64 Bit server. The test we conducted were
simple, we executed sqlplus on both old 32 Bit and new 64 Bit Servers.
The query takes 0.88 seconds on windows 2003 and 4.45 seconds on
windows 2008 64 Bit server. This help us isolating the layer. We
Googled and have found similar problem reported over windows 2008
Server. We take following remedial steps.

4:- netsh int tcp set global RSS=disabled
5:- netsh int tcp set global Chimney=disabled
6:- netsh int tcp set global Autotuninglevel=Highlyrestricted also by
7:- disabled IPV4 Checksum offload from network card.
8:- disabled IPv4 Large Send Offload from network card.
9:- disabled IPv6 Checksum Offload from network card.
10:- disabled IPv6 Large Send Offload from network card.
11:- disabled TCP Connection Offload (IPv4).
12:- disabled TCP Connection Offload (IPv6).
13:- Disabled the SMB2 from registry.
14:- By disabled the IPv6 from network card also from registry.
15:- HKLM\System\CurrentControlSet\Services\TCPIP\Param eter
EnableTCPA (Enable 1 and disable
16:- Upgraded 64 Bit Oracle Client

But this still did not solve the problem, the query still taking too
much time on 64 Bit server then 32 Bit Server.

Kindly advice ways to resolve the issue


Reply With Quote
Posts: n/a
Sorry, not really my turf - did you copy/paste from the 32bit
environment directly into the 64bit?

You probably shouldn't do that?

Not at all sure what would have to change, though.

Best of luck!

Tony. . .
Reply With Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Weired problem with site-to-site vpn: only one side of the vpn works !? Dirk Westfal Cisco 5 03-14-2006 09:35 PM
Weired start page... =?Utf-8?B?QW5kcmV3?= ASP .Net 1 12-03-2005 02:49 AM
Server.Transfer in ASP.NET - weired problem Nedu N ASP .Net 5 03-06-2004 12:51 AM
Server.Transfer in ASP.NET - weired problem Nedu N ASP .Net 1 01-21-2004 12:51 AM
HELP! weired problem Brian H Computer Support 6 01-03-2004 02:11 AM