Current time: 03-09-2021, 08:56 PM Hello There, Guest! (LoginRegister)

Post Reply 
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Not Modified Content Downloading?
02-24-2015, 07:01 AM
Post: #5
RE: Not Modified Content Downloading?
For your css inlining question, there was a pretty good twitter thread on the tooling for extracting the critical css recently:

For the cached pages question, if the client is asking and the server is responding with a 304 that means it is still doing a validation check and isn't truly cached in the browser (which is why the connection needs to be set up). As to why it takes so long, it looks like the CPU is pegged for some reason - I'd be more inclined to blame the EC2 instance though it does seem to happen pretty consistently on that test.

Those really long TTFB's are certainly server processing and getting visibility into that usually requires installing something like New Relic (or instrumenting the code). Coming in from China will add some network RTT to the TTFB but it's on the order of 250ms and is dwarfed by the server time.
Visit this user's website Find all posts by this user
Quote this message in a reply
Post Reply 

Messages In This Thread
RE: Not Modified Content Downloading? - pmeenan - 02-24-2015 07:01 AM

Forum Jump:

User(s) browsing this thread: 1 Guest(s)