SharePoint extremely slow when using Managed Navigation with friendly links
My site was almost ready last week before I decided to apply permissions to sites and sub-sites. I've implemented a mega menu with 6 static display levels using term store. All links in term store were converted to friendly URLs from Simple links last week. Now the site performance has reduced drastically. From being a fast site it has gone down to being extremely slow taking about 20 seconds or more for a page to load! The users of the site are not happy and neither am I. I am wondering if there is any way the performance can be improved?SPIisLatency and SPRequestDuration Response Headers in SPO Pages
wbaer, this is primarily for you. I hate to be a persistent pain-in-the-butt ... but I know that I and several other folks out here would love to get some official position on this: When troubleshooting SPO performance issues, the SPIisLatency and SPRequestDuration headers are critical. For every customer who complains that "SharePoint Online is slow," I can immediately use these two headers to hone-in on whether the issue is page weight, sub-optimal development, potential internal network issues, or some combination of the two. I wrote a blog post to help users leverage these response headers in troubleshooting (https://sharepointinterface.com/2017/07/07/the-five-minute-page-performance-troubleshooting-guide-for-sharepoint-online/), but for some time now the presence of those two headers on a page that is returned from SPO has been spotty at best. It looked like the headers came back for a while after I sent you and Chris McNulty a note (and spoke with Chris on a couple of occasions), and I officially declared the headers to be back at one point. At DevConnections last week, I was giving a performance troubleshooting session, went to find the headers, and was once again left holding the bag in front of a live audience. For example, this is from the home page of the SPO root site in one of my tenants: Notice: no SPRequestDuration and SPIisLatency headers. Please, please: are these headers supposed to be present? Are they for some reason being phased-out because something "better" is being developed? It's getting harder and harder to tell live audiences, "Hey, they're supposed to be there. Let's pretend they're there." I'd like to know what exactly is going on. Could you please take a moment to comment? - Sean
