A presentation at DeltaV Conference in in London, UK by Tim Kadlec
web performance redefining Tim Kadlec #deltavconf @tkadlec
teensy measly
Unfortunately Harry, I speak in the morning so I can only have one small cocktail.
Unfortunately Harry, I speak in the morning so I can only have one teensy cocktail.
Unfortunately Harry, I speak in the morning so I can only have one measly cocktail.
teensy
measly 3. contemptibly small
bootylicious
literally used in an exaggerated way to emphasize a statement or description that is not literally true or possible
web performance
web performance back-end
web performance back-end > front-end
web performance back-end > front-end > user-centered
performance is a problem
network constrained
71% 2G or 3G
1560kb median 575 4kb 90th percentile
device constrained
352kb median 101 3kb 90th percentile
~2400kb median 6915 kb 90th percentile
1244ms median 5268 ms 90th percentile
performance is a problem business ^
performance is a problem business ^
performance is a problem content strategy ^
performance is a problem security ^
let
myData
= [ 1 ,
2 ,
3 ,
4 ];
let
item
=
1000 ;
if
(item
<
myData.size) {
myData[input];
} }
let
myData
= [ 1 ,
2 ,
3 ,
4 ];
let myData = [ 1 , 2 , 3 , 4 ]; let item = 1000 ; if (item < myData.size) { myData[input]; }
let
item
=
1000 ;
let myData = [ 1 , 2 , 3 , 4 ]; let item = 1000 ; if (item < myData.size) { myData[input]; }
if
(item
<
myData.size) {
let myData = [ 1 , 2 , 3 , 4 ]; let item = 1000 ; if (item < myData.size) { myData[input]; }
myData[input];
let myData = [ 1 , 2 , 3 , 4 ]; let item = 1000 ; if (item < myData.size) { myData[input]; }
let
myData
= [ 1 ,
2 ,
3 ,
4 ];
let
item
=
1000 ;
if
(item
<
myData.size) {
myData[input];
}
performance is a problem an accessibility ^
…make the difference between minimizing my computer use and being able to use the web freely.
performance = time
performance = time level of effort
performance = time level of effort human memory limits
performance = time level of effort human memory limits task completion
performance is a problem user experience ^
web performance how efficiently can users accomplish their goals
performance is a business content strategy
accessibility security user experience problem
performance is a problem but it ’ s fixable!
thank you! Tim Kadlec #deltavconf @tkadlec
The following resources were mentioned during the presentation or are useful additional information.
Book about dictionaries written by a lexicographer at Merriam-Webster
Report mentioned with loads of interesting mobile-related data about global connectivity.
Tool for generating the 3rd party request map for a page.
The talk I mentioned about the NY Times performance challenges with their static CMS.
Whitepaper about considering performance in terms of the number of keystrokes
2006 study on correlation between task completion and performance.
Here’s what was said about this presentation on social media.
for free. You
can too.