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Jason KidmanFlag for United States of America

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Tablet PCs slow responsiveness relative to other local non-tablet PCs.

I would appreciate input/ideas on the potential causes and steps for the following:

I am troubleshooting a client complaint of slow responsiveness of two tablet pc's when using eClinicalWorks. Other local non-tablet devices do not exhibit the problem.

Primary complaint: Approximately one second delay when opening windows and clicking within the eCW application. The functions are generally viewing, editing, and saving customer records. The app is accessing data stored on a local MySql database.

TabletPC 1: Dell XPS 12 9Q23; Windows 10 Pro 64 bit; Intel(R) Core(TM) i7-3537U CPU @ 2.00GHz; Memory: 7.9 GB;
TabletPC 2: Dell XPS 12 9Q33; Windows 10 Pro 64 bit; Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz; Memory: 7.9 GB;

CPU, Storage, and Memory utilization are consistently at 25% or less.

Users report slow downs around 6:30AM and 3PM.

Network connectivity is typically over wireless access points, however delays persisted when hard line access was setup for troubleshooting purposes. The performance issue remains for both wireless and wired configurations. Ping times are consistently low.

Other devices such as Dell Optiplex desktops, Dell Latitude laptops, and HP Elitebook laptops running Windows 7 Pro on the same WAPs do not experience the delay. In some cases these other devices are of lower spec hardware.

Steps taken:
  1. Updated Wireless card drivers.
  2. Ruled out WiFi issues by testing using hard line connection. Issue persists.
  3. Uninstalled or Disabled some extraneous programs.
  4. Anti-virus software removed.
  5. DNS settings confirmed correct for clients and server.

Possibilities under consideration:
  • Superfetch causing hard-drive slow down.
  • Firmware/Driver updates for SSDs.

Thanks in advance!
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Thank you!

A closer look shows only one machine averaging 25% CPU load, the other averages under 5%. While this indicates as not to be the primary cause of the latency, I will review the one machine for a CPU over-utilization source.

I will visit the boot storm and iPv6 ideas at next opportunity, and update this thread.
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Thanks McKnife, will do. Whether the eCW suite will run in safe mode is as yet unknown, but I will try.
Thanks for the input guys. Unfortunately I haven't had hands-on time with this client since the original post. It's a busy time for them and they rarely give up their machines. I have my short to-do list and will update accordingly.

1. Check Task Manager for app hoarding CPU utilization.
2. Review time-of-day relevance.
3. Try running in safe mode with networking.
4. Run app in Windows 7 compatibility mode.
5. Disable iPv6 in the NIC.
The author may need more time to troubleshoot.
Jason, your feedback is awaited.