raheel - Developer IT

Upgrading my home network to Gigabit Ethernet and Wireless-N turns out slower than before

- by Raheel Khan

My home network has three desktops, three laptops and some NAS drives. All desktops and NAS drives support Gigabit LAN and all laptops support Wireless-N. I was running a 100 BaseT switch though. I recently purchased a Gigabit Ethernet Switch and an Wireless-N ADSL Modem-Router. After upgrading, I noticed that the wireless file transfer speeds from laptop-to-NAS and vice versa became terribly slow. Possibly even slower than before the upgrade. The transfer speeds from desktop-to-NAS (wired) have improved though. As an example, copying a 50GB file from laptop-to-NAS was estimated at 15 hours! Is there something I can do to improve this? Also, should I consider buying a dedicated wireless access point for speed rather than using the Wireless modem-router?

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How to tell if you are connected to Wireless B, G or N?

- by Raheel Khan

I am using Windows 7 on all wired desktops and wireless laptops in my home network. I recently upgraded my Ethernet switch to Gigabit and instantly noticed an increase in throughput in wired devices. I also bought a Wireless-N WAP but with degredation in wireless file transfer speeds. I have been told that a number of reasons could affect wireless speeds including which WAP is used, how many wireless devices are connected, which security mode is used, etc. However, that remains irrelevant to my question. Each of my laptops claim to support Wireless-N but I cannot seem to figure out how to determine if the laptops are truly running Wireless-N or are connected to the WAP through some sort of mixed-mode. I do not have control of the WAP device so cannot tell what mode it is running in. Is there a way to tell which mode is being used and what the throughput is for each connected device without having access to the WAP interface?

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XCode: deleting included resources causing problems

- by raheel

If I try to delete some image resources from my (iPhone) XCode project via Finder, XCode will complain with errors on next build that it can't find these files. If I try to delete them via XCode's 'Delete' command, XCode crashes everytime without fail. Any solutions? Hints?

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Recognizing individual voices

- by raheel

I plan to write a conversation analysis software, which will recognize the individual speakers, their pitch and intensity. Pitch and intensity are somewhat straightforward (pitch via autocorrelation). How would I go about recognizing individual speakers? For starters I can assume that only one person speaks at a time.

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MasterPage Page_Load hits before Grid_ItemCommand

- by Raheel Khan

I am using the session object to store success/error messages based on user actions. On each postback, the message is set on ItemCommend and retrieved on the Page_Load of the master page. Once retrieved, the message is deleted from the session. The problem is that the master page's Page_Load gets called before the ItemCommand gets called so the message does not show up until the next refresh or postback. How is this situation normally handled? Is there some other event we can code against?

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Drupal 7: Unable to find the wrapper "public"

- by Raheel Hasan

Can anyone help me with this major issue I have. I have downloaded my Drupal 7 site running fine on current server, but I cant run it on localhost or on the new server where I am trying to move it... It just gives me the "White Screen of Death"... and after commenting "set_error_handler" in boostrap.inc, I find out that the errors are all related to "public://" wrapper. This is how all the errors look like: Warning: is_dir() [function.is-dir]: Unable to find the wrapper "public" - did you forget to enable it when you configured PHP All these errors are coming from the following file: /includes/file.inc

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links for 2011-03-09

- by Bob Rhubart

Is there a Telecommunications Reference Architecture? (Telecommunications Architecture Corner) The answer is "yes," and Raul Goycoolea shares the details. (tags: oracle otn enterprisearchitecture) Oracle@info360: Advance Beyond Point Solutions To An Enterprise Content Strategy (Oracle Enterprise 2.0 Blog) Kellsey Ruppel shares information on some of the speakers at the upcoming info360/AIIM conference. (tags: oracle otn enterprise2.0 aiim info360) ERP in the Cloud for Local Government | Oracle Blog | Capgemini | Consulting, Technology, Outsourcing In these times of austerity, Local Authorities are facing significant reductions in budgets (on average over 30%). Now that the easier savings have been realised, Councils are faced with two options, cutting services or revolutionary changes to the way they do things today. (tags: oracle capgemini cloud) Mobile HR Apps "Good, so we have we have plenty of commercial applications making use of the smart phone," says Raheel Khan. "But what about core backend business applications?" (tags: oracle mobilecomputing) Policy Administration is the Top 2011 IT Priority for Insurers (Oracle Insurance) "Insurers can no longer rely on inflexible policy administration systems that impede their ability to rapidly configure and bring to innovative new products, add riders, support changing business processes and take advantage of market opportunities." - Helen Pitts (tags: oracle otn enterprisearchitecture) Free: Oracle Technology Network Architect Day - Denver - March 23 The live one-day event in Denver brings together architects from a broad range of disciplines and domains to share insights and expertise in the use of Oracle technologies to meet the challenges today’s architects regularly face. The event is free, but seating is limited. (tags: oracle otn enterprisearchitecture cloud optimization) InfoQ: Randy Shoup on Evolvable Systems Randy Shoup discusses evolvable systems: how to run different versions of a system in parallel during migrations, decoupling a system with events, schemas at eBay and much more. (tags: ping.fm)

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