411 reputation
25
bio website loadrunnerbythehour.com
location North Carolina
age 45
visits member for 2 years, 11 months
seen May 5 at 13:30

One half of the dynamic duo at PerfBytes radio, PerfBytes


Sep
28
answered Measuring end user application performance?
Sep
28
answered Looking for application performance tracking software
Sep
26
answered Measuring and visualing web application performance using apache logs?
Sep
26
answered What is the best way to compare the performance of different servers?
Sep
23
answered SQL Server 2008 R2 Express and VMware
Sep
23
answered Slow performance on VMWare Linux server after Tomcat install
Sep
22
answered Would rebooting the server in a schedule be good idea for performance?
Sep
19
answered Ubuntu Enterprise Cloud - NCs down and time synchronization
Sep
14
comment Windows 7 naming problem
That is a reasonable assumption and one I considered, but I opted in the end to take the poster's literal expression of all networking under DHCP
Sep
14
comment Server configuration - dealing with 350 similtaneous use
Yes, it is preventable. The number of handshakes back and forth for different elements combined with the sizes will impact severely your network performance in such a case. Minimize the number of file content elements, make them as small as possible, even enabling compression on the server. Likewise with the graphics, pick a network friendly format and optimize the color pallete to eliminate extra weight. If SSL is involved, only use it where Personally identifiable information is present, otherwise it adds overhead to the site. Expand the server cache so it hits disk less. ...
Sep
14
answered Windows 7 naming problem
Sep
14
answered Server configuration - dealing with 350 similtaneous use
Sep
13
answered Opensource SSL VPN for laptop to home network?
Sep
12
answered SQL server Vs MySql vs Oracle for a large government project
Sep
9
answered Why would a heavily disk intensive application run faster on a SAN than on a Physical Disk?
Sep
2
awarded  Commentator
Sep
2
comment What are the drawbacks of running a database inside a virtual machine? How do I overcome them?
Do not get me wrong, I am not trying to "blame" virtualization here. I am a very happy user of the same technology in specific areas of my IT infrastructure. There are bad IT decisions chasing cost savings being lead by non-IT folks and bad applications that are leading the way to poor performance in virtualized/cloud environments. These bad decisions keep my organization very busy.
Sep
2
comment What are the drawbacks of running a database inside a virtual machine? How do I overcome them?
I only have a decade worth of in-the-field observations to draw from. Where I am generally called primarily falls into two categories related to poor performance, environments are horribly oversubscribed, with IT decisions being driven by accounting managers unfamiliar with technology and with applications which are poorly designed/have high clock dependencies which are not well sorted for performance. In all cases the delta from physical to virtual us more than a few %. In some cases both are present. My observations may be biased by spending most of my time fixing these issues.
Sep
2
comment What are the drawbacks of running a database inside a virtual machine? How do I overcome them?
"I am not totally virtualization averse as I use the technology every day as a part of a services delivery practice, but where performance is the primary_concern_(as_it_is_in_my_field) I do not recommend or deploy virtualized solutions"
Sep
2
comment What are the drawbacks of running a database inside a virtual machine? How do I overcome them?
Unfortunately neither Microsoft nor Novell really embraced fully the directory model for both administrator and user namespaces as Banyan pioneered, for if they had platform consolidation would have been very easy. An admin could then simply migrate a service from one host to another and retain the same logical namespace as resolved by the directory server without users having any knowledge of systems being changed in the background.