All Questions
Tagged with profiler javascript
58 questions
0
votes
1
answer
45
views
How chrome devtools calculates time in performance chart for last item?
Here is my profile example:
{
"nodes": [
{
"id": 1,
"callFrame": {
"functionName": "ROOT",
"scriptId": &...
4
votes
0
answers
106
views
What does "Experience" refer to in the Chrome developer tools performance window?
I'm trying to debug my canvas game's performance and I received this as a result after running it for 10 seconds while profiling with Chrome's performance profiler:
What is Experience? I don't think ...
- 8,881
7
votes
0
answers
761
views
How do I attach a sourcemap to a node.js (V8) CPU profile (.cpuprofile) in chrome dev tools?
I've used the Node.js Inspector module to produce a CPU profile (.cpuprofile file) from a production server. I'm able to load it into chrome dev tools (Performance tab) without issue.
The flame graph ...
- 53.9k
0
votes
0
answers
321
views
Javascript Profiling with Chrome Devtools
I am trying to profile some javascript code on this url by setting an event listener breakpoint on mouse click.
When you click on any flight on the results page, it opens a new tab with another link ...
- 3,000
2
votes
0
answers
136
views
JS DevTools profile has a lot of dropped frames
I'm developing an application that draws a lot of things on the HTML canvas.
I have a lot of dropped frames in my profile, however, it has a lot of idle time in each frame and I don't understand why a ...
- 130
3
votes
1
answer
1k
views
what does mean this number in react devTools?
I have a Nextjs app that I want to profile for performance issues.
Im using the react dev tool profiler in chrome
I profile a specific interaction and get the flamegraph and the ranked time graph in ...
3
votes
1
answer
2k
views
How do you use heap snapshots from the Chrome profiler to hunt for memory leaks?
I seriously don't know how to use the information shown here in the heap snapshot to hunt down whatever is using so much memory in my application. I understand that when I click on one particular item ...
1
vote
2
answers
1k
views
"Task" in Chrome's JavaScript profiler taking longer, but no functions being called
I'm writing a game in JavaScript and having performance problems. The program starts a timer, then in the callback renders a frame of the graphics and starts another timer for the next frame. The ...
- 31
1
vote
1
answer
173
views
Javascript Chrome profiler granularity - Go deeper
I'm currently debugging an Angular (JS) based app. I have some speed issue on runtime (client side) and want to analyze why.
I use the Devtool profiler from Chrome. I can see that some Events (i.e. ...
0
votes
1
answer
132
views
Javascript Profiler in Chrome 79 for Windows: What does self-time include?
Running in-browser Javascript in Chrome 79 for Windows :: From similar threads, it sounds like self-time includes only time to run the in-line code within a particular function, and excludes any time ...
- 261
14
votes
1
answer
979
views
Node.js profiler - Everything in Shared Libraries?
I am currently doing Advent Of Code (definately to recommend btw but off topic. However on Day 3 I was pretty unhappy with the performance of my algorithm.
So I started using the built in node ...
- 3,322
0
votes
0
answers
453
views
IE/Edge profiler doesn't show js call stack
Like in the title, both my Edge and IE doesn't show any data in JS call stack tab in the Profiler tab in the dev tools. I have tried deselecting 'Disable script debugging (other)' and 'Disable ...
2
votes
1
answer
464
views
Can't profile Babel-transpiled Node.js app with Spy-js in WebStorm
So me and my team are currently in the process of profiling our Node.js app to try and improve performance on it as much as we can. After doing it with Chrome's DevTools for Node.js which was not ...
- 1,947
0
votes
1
answer
36
views
Gather Layer Borders data through Javascript
I am writing an own tool for profiling my web performance issues. I spotted an necessity to observer amount of separate composite layers on my website. I am looking through web APIs on MDN, but I can'...
0
votes
1
answer
202
views
JQuery animate lags on first run
I'm troubleshooting a bug in a UI where the first time the menu is opened it is very slow. Anywhere from 1-3 seconds. Subsequent openings are just as fast as you would expect.
Below you will see ...
user736893