Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Update TTI scoring label to 5000ms (matches guidance) #947

Merged
merged 2 commits into from
Nov 16, 2016

Conversation

addyosmani
Copy link
Member

@addyosmani addyosmani commented Nov 16, 2016

The current TTI uses our point of diminishing returns as a label, however this number (1700) currently doesn't align with the external guidance on TTI targets (5s on 3G). This PR updates the TTI target to 5000 as discussed with sir @brendankenny.

screen shot 2016-11-15 at 6 11 27 pm

A separate commit also adds the missing ms units to the report that are used in other performance metrics but not included in TTI for some reason. Two fixes for the price of one 🐦 🐦

screen shot 2016-11-15 at 6 14 33 pm

Copy link
Member

@brendankenny brendankenny left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

one small thing and waiting for travis. Small change but I want to do a release tomorrow :)

@@ -17,6 +17,8 @@ const Formatter = require('../formatters/formatter');
// https://www.desmos.com/calculator/jlrx14q4w8
const SCORING_POINT_OF_DIMINISHING_RETURNS = 1700;
const SCORING_MEDIAN = 5000;
// This aligns with the external TTI targets in https://goo.gl/yXqxpL
Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Do we have a tracking issue for updating the scoring? Would be good to add here

Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I've thrown together #948 but am happy to detail more on there if needed. Is that what you had in mind?

Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

looks good

Copy link
Member

@brendankenny brendankenny left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

📈LGTM📉

@@ -17,6 +17,8 @@ const Formatter = require('../formatters/formatter');
// https://www.desmos.com/calculator/jlrx14q4w8
const SCORING_POINT_OF_DIMINISHING_RETURNS = 1700;
const SCORING_MEDIAN = 5000;
// This aligns with the external TTI targets in https://goo.gl/yXqxpL
Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

looks good

@brendankenny brendankenny merged commit 4a8f29e into master Nov 16, 2016
@brendankenny brendankenny deleted the tti-update-score branch November 16, 2016 08:36
andrewrota pushed a commit to andrewrota/lighthouse that referenced this pull request Jan 13, 2017
* Update TTI scoring label to 5000 (matches guidance)

* Add ms units to the TTI included in reports
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

2 participants