All Questions
Tagged with google-chrome-devtools performance
214
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Why javascript scripts load asynchronously without 'async' keyword? [duplicate]
I'm currently learning how Critical Rendering Path works in web development. Based on what I've read javascript resource should be requested and executed synchronously if there is no 'async' or 'defer'...
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76
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Chrome measuring FPS incorrect
I'm measuring the performance of an animation. When i use the following code to measure FPS, it's inconsistent with Chrome Frame rendering stats.
let lastTime = performance.now();
let lastFrameTime = ...
- 1
1
vote
1
answer
68
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Capture chrome performance report programmatically with JavaScript? [closed]
We've been running a CPU intensive web application and there are some challenges debugging the performance issues as the hardware and CPU availability is different per user.
Although, we tried ...
- 3,431
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27
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Save chrome performance profile without screenshots?
I'm not sure if this is the right place to ask this question. Recently, we had some performance issues with our web application and we captured a performance profile of the affected user with ...
- 3,431
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42
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Lighthouse performance Largest Contentful Paint element
I was just testing my lighthouse score and found my Largest Contentful Paint element to be of 10,210 ms, although the issue which lighthouse pointed out is a tag which on click redirects to another ...
- 109
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423
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chrome devtools - memory chart in performance tab do not display any info
I am trying to learn how to use the performance tab from chrome devtools and I cannot seem to understand why the memory chart that is supposed to show me some info regarding JS Heap, Nodes, etc., is ...
- 43
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2
answers
46
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Can I optimise my React App reconciliation for performance?
I am optimising the performance of my React app. Most state changes seem to result in the following "Timings" in the chrome devtools performance tab:
As you can see, a fair chunk of time is ...
- 23
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25
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Chrome dev tools showing weird numbers during performance profiling
Chrome dev tools profiler is behaving randomly weird and showing incorrect numbers during performance profiling, have someone faced similar issue recently?
I tried re-install and system restart ...
- 23.9k
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66
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Discrepancy in Performance Timings between Chrome and Firefox for React App Rendering
I'm facing an issue while trying to measure performance timings within a React app. I've created a simplified version of the app specifically for accurate measurement, as my main application is much ...
- 17
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254
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What is `Experience` in chrome Performance tab of devTools?
enter image description here
I'm a web front-end developer, and I'm measuring performance in the performance tab of chrome devtools to improve performance.
After measuring the performance for about 12 ...
- 11
8
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1
answer
4k
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What is the Profiling Overhead in Performance
I've seen that there is something called Profilling Overhead in Performance Timing. But currently I cannot find what does it mean. And What will effect the time of it. Is there anyone can help about ...
- 81
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261
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Chrome Dev tool coverage tab for minified css
I want to know if there is any way to see the used and unused css from coverage tab even if our css is minified.
For example:
For this link
enter image description here
you can see in coverage tab for ...
- 31
2
votes
1
answer
396
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Why does the browser " pause " when opening a link in a new tab ? What is "Profiling overhead"?
I am analyzing a performance problem when opening any link in a new tab of my application. I am using the chrome dev tools and I have seen some interesting things ( both from my application and others ...
- 169
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votes
1
answer
66
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Browser-based debugging and performance testing software for react application
I am knee on learning how to do Browser-based debugging and performance testing software for react application
what all the tools to use and also what are the metrics to consider for effective react ...
- 424
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1
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403
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Chrome hangs for 15s+, no clues in DevTools — how can I debug this?
One page on a client's site causes Chrome to hang unresponsively for 15 seconds or so. On macOS, the browser locks up completely and the spinning wheel appears.
There are no issues whatsoever in ...
- 9,734