I'm trying to learn how to use the Network Tab in Chrome Developer Tools.
Here is a screenshot of the Network tab:
As you can see, in the right side of the image there is a timeline graph. The graph ends at 1 second, although the "longest" event takes 11 ms. I want to change the scale of the graph that it'll end at 20 ms. Do you know how to do it?
Here is a visual guide for #wOxxOm comment:
Related
While using Google Chrome Timeline feature I have noticed a strange thing. On my PC in a workplace flame chart is very flat, showing only 1-2 function calls deep. My first thought was: "Well, that is the way this thing works". But when I opened the same webapp from home and a flame chart was much taller, showing all function calls.
Both browsers are in the same version (51.0.2704.84 m - latest at the moment). All settings in DevTools are same.
Flame chart from computer at work:
Flame chart from computer at home:
My question is simple: why computer at work does not show full call graph and how can I fix this?
Is everything checked under the Event Log tab (below)? I see that painting and rendering events are not visible in your bottom screenshot.
Looks like a bug on your work computer. It shows no JS frames at all. If it's still reproducible please file it at https://crbug.com
I assume you were recording with JS Profile checkbox marked.
I'm trying to view the emulation panel but I can't find it anywhere. Everywhere I've looked it says to open an overrides panel to find it but that's missing too. I also can't find any helpful or new answers to my question. Pressing esc only opens up console and there's nothing in settings that seems to help. Can someone please tell me how to reach it?
Instead of emulation in the drawer Device Mode is now offered for emulating other devices. It provides many benefits over the old emulation mode, such as taking into account the meta viewport tag on render. So what you see is much closer to what you'd get in real life.
I'm using 51.0.2704.103 (64-bit) on a Mac.
Cmd-Opt-i to open console.
Click the button with three vertical dots and the very top right of the Developer Tools window.
Select: more tools > sensors:
If the console draw is not already open it will open. Either way there should now be a sensors tab next to the console tab on the console draw. Click this tab and follow your nose from there.
Note that this tab had an x by it. Hitting this will hide the sensors tab and next time you use it you will need to follow the steps above again to reinstate it.
So I'm trying to develop a webapplication and I'm trying to check it out on mobile.
I'm currently using Cordova and JQuery Mobile together with ripple.js to view my application in my browser.
The first issue (as far as I know) is that ripple.js will work best in Google Chrome, so this is my only test platform.
The second issue is that when I toggle Device Mode on, it doesn't show me the black dot (cursor) when I enter the rendered version.
I'll explain my situation or a scenario:
As an example I'll go to http://google.com
I press F12 to enter developer mode
I click the Toggle Device Mode button
I will see my cursor, until I enter the generated mobile canvas. While I would normally see a black transparant dot, I now see nothing.
I can however click and drag like I would normally do, but I can't see what I'm doing.
The things I already tried:
Reset all the flags back to default
Reset all developer tool settings to default
(edit) Installed a previous version of Chrome AND Chromium
So question is, how do I get my cursor back?
Extra: I'm using version 49.0.2623.87 m, but that's not related since my co-worker, has the same version and he sees the cursor.
(edit) currently I'm using the mouse option where I press Ctrl to see the circle which indicates where my cursor is, but this really has to be a temp solution.
(edit) I fixed it by doing a combination of things. So I'm not sure which exact thing fixed it. I removed a few programs that I installed after it still worked. I uninstalled about 4 of them. Also I did an update of my graphics card and then did a reboot. So it could be either the graphics card update, the software uninstall and/or the reboot.
I had the same issue. (note this question might be a duplicate of this one)
Following the advice on the Chrome forum here I changed the Quantization Range in my Intel HD Graphics Control Panel from "Default Range" to "Full Range". The touch pointer (grey circle) appeared immediately.
If that doesn't help you may have to change refresh rate too. Changing from 59p Hz to 60p Hz or some other refresh rate might help.
This should also help.
Open the mouse control panel.
Select the Pointer Options tab in the Mouse Properties window.
Then enable Display pointer trails option.
In case you don't like or are getting annoyed, like me, due to the trailer. Move the slider to the Short position and the trailer becomes near to non-existent or invisible.
I fixed it myself, yet I'm not exactly sure how I did it. I edited my original post and added the solution in the last paragraph.
Had the same on my Asus laptop with Chrome 66
Resolution that worked for me
Graphics Control Panel > Display > General Settings > Scaling > Change to Scale full screen.
OFF your Asus Eye Care Switcher.
I am posting this as answer because above mentioned answer didn't work for me but I had this issue when I had a monitor attached to my laptop, for development work. I played around with my display settings and discovered that IF the scale on my second monitor did not match the scale on my laptop, the mobile development mode cursor would disappear. (windows 10)
If this is an issue for anyone just go into Display settings -> Display -> Scale and Layout --> make sure that both your laptop/desktop matches the display scale of your second monitor.
Hope this will help.
I came across this short video about Tracing paint operations in Chrome Canary
I have tried all the options and I can't get to these brilliant features.
1. Paints (snapshots):
2. Layers view:
The video is 1 year old now (it is from April 2013).
Are these features still available?
If yes, how to get to them?
I was able to show layers and snapshots using the following settings. Note that on the left pane the fully set of options is not visible in the screenshot, however the only item that is checked on the left pane is 'gpu'. All options on the right pane are visible. A smaller number of settings is likely possible:
Here's a snapshot of what I see. Note that the snapshot includes a full rendering of the webpage:
My Chrome version is 36.0.1985.125 (Official Build 283153)
Is there any free tool for IE so that I can know the page download time and download size?
I'm using IE Web Developer tool but it doesn't show download time/size.
For FireFox, there is an addon called Lori which does it.
Indeed the IE11 dev tools appears to be lacking that nice total time taken. To get around this, in IE11 you can export the data as a CSV. There is an export button next to the start/Stop button on the Network tab.
Open the CSV, observe that the times for each component are given in both milliseconds and seconds.
Add a new empty column next to the 'Taken' column.
Filter the Taken column to only show 'ms'.
Use the Text to columns feature to move the letters ms to the next column (make the delimiter a space. Note that < 1ms figures will move the 1 to the new column. So if you are being really granular then you need to find these and move the 1 back to the Taken column and remove the < that is in there.)
Use the SUM feature to get the total ms.
Repeat this process but this time for the seconds.
Convert your ms to seconds and add this figure to the total seconds and you will have your total page load time.
MySpace’s Performance Tracker works on IE 6 and up.
Check again on IE developer tools. Hit F12, then click on the network tab and press the "Start Capturing" button. That'll give you download time, size, sequence, and let you see the request and response headers/body.
just use the Google Chrome Developer tools when you press F12 in Google Chrome then go to network and refresh the page you need the size of and it will give you a graph with the size of each file referenced