Cyber Monday verdict is in: Kohls having serious trouble keeping up

Industry News No Responses »
Nov 302009

Using our own browser-based monitoring service, we’ve been watching some of the top retailers this morning to see how they fare during the Cyber Monday onslaught as US shoppers return to work after the Thanksgiving holiday. Of the sites that we’ve been monitoring, very few have had any problems so far.

While Amazon, Kmart, Macy’s, Walmart, and Best Buy all experienced minor site performance problems, only Kohls so far as outright failed. Starting around 7AM PST their home page response time went from 2.5 seconds to, in some cases, over 25 seconds (a 10X slowdown). At one point it was completely offline.

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Posted by Patrick Lightbody at 11:45 am

Optimizing WordPress performance by disabling plugins and using BrowserMob's monitoring service

Industry News No Responses »
Nov 242009

We were recently delighted to see a detailed writeup about optimizing WordPress by Rob Havasy, a blogger by night and business analyst by day. He’s been running his WordPress-powered blog since May 2009 and everything had been going quite nicely until recently:

But I noticed a sudden decrease in performance earlier this week and couldn’t understand why. I was having both resource issues on the server (PHP was consuming too much processor capacity and my host automatically killing the process occasionally) and an overall slowness on the pages. How would I track down what was going on?

This is a preview of Optimizing WordPress performance by disabling plugins and using BrowserMob’s monitoring service. Read the full post (160 words, estimated 38 secs reading time)
Posted by Patrick Lightbody at 2:56 pm

Why your site could be slow, even with low CPU/RAM/disk utilization

Load Testing Tips 3 Responses »
Nov 162009

We often have customers ask us why their site appeared to slow down significantly, despite the fact that their CPU, RAM, and disk utilization did not rise in utilization significantly. While those three metrics are often good indicators of why systems can “slow down”, there are many other causes of performance problems. Today, we’re going to discuss one common root cause for slow websites that often gets overlooked: connection management.

This is a preview of Why your site could be slow, even with low CPU/RAM/disk utilization. Read the full post (589 words, estimated 2:21 mins reading time)
Posted by Patrick Lightbody at 9:25 am
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