High CPU usage when doing barely anything

pointed.stick

As it turns out, "Export Calendar" works in Vivaldi 4.3, so that's a regression.

I imported the .ics back into the calendar. No change. Same load.

mib2berlin

@pointed-stick
Hi, I test the export/import in Vivaldi 6.2.3105.48 and it work as expected.
I export in one profile and import in another.
Is this a local calendar or a Google/Vivaldi calendar?

pointed.stick

Local, yes. Nothing happens, when I click "Export".

mib2berlin

@pointed-stick
Hm, I export a vivaldi.net calendar and a local calendar:

Appears, tested on Linux and Windows 11.
Do you select the calendar in the settings?

pointed.stick

Yes, I did select the calendar before trying to export it.

I tried something else: I started Vivaldi from a terminal, with no arguments. This is what it said during startup:

[30113:30113:0918/192838.685217:ERROR:chrome_browser_cloud_management_controller.cc(163)] Cloud management controller initialization aborted as CBCM is not enabled.
[30113:30146:0918/192838.914032:ERROR:nss_util.cc(357)] After loading Root Certs, loaded==false: NSS error code: -8018
Fontconfig error: Cannot load default config file: No such file: (null)
[30113:30113:0918/192840.442768:ERROR:CONSOLE(1)] "Uncaught (in promise) Error: Source filter not found ["Feeds",""]", source: chrome-extension://mpognobbkildjkofajifpdfhcoklimli/background-common-bundle.js (1)

Then, when I tried to export the calendar, this was the result:

[30113:30113:0918/192853.327287:ERROR:CONSOLE(1)] "%c[CALENDAR - export]%c font-weight:bold font-weight:normal Error opening filepicker [object DOMException]", source: chrome-extension://mpognobbkildjkofajifpdfhcoklimli/bundle.js (1)

mib2berlin

@pointed-stick
Hi again, can you open a new thread about the export issue, this is a bit of topic here.
I can post my terminal output there.

Cheers, mib

Univer0325

Perhaps try rebuilding the Mail Search Database and see if it fixes the high CPU usage.

Enable Mail, Calendar & Feeds News if disabled.
Open the Status bar with Ctrl, Shift, S if closed.
Click the Mail icon. Add it back if removed.
Click on the settings icon.
And click Rebuild Mail Search Database.

There’s also a nuclear option in case it doesn’t help with the high CPU usage. Be careful on which folder you delete.

Simply close the browser and head to this folder and delete the mpognobbkildjkofajifpdfhcoklimli folder provided below.
C:\Users\yourusername\AppData\Local\Vivaldi\UserData\Default\Storage\ext\mpognobbkildjkofajifpdfhcoklimli

Vivaldi mail will simply re-index the mail client.

ddd356

Have a same issue.
Vivaldi uses processor when doing nothing with no tabs opened.
I disabled mail, calendar and news feed, and it helps.
But it is useful features. Hope this can be fixed.

mib2berlin

@ddd356
Hi, if you use IMAP try the solution one post above, delete the mail database folder.
You have to rebuild the search database after the start of Vivaldi.

Cheers, mib

ddd356

This post is deleted!

invenio

This is still happening. What I have found:

With Mail (I don't use calendar) enabled I get CPU usage over 50% (even with no web pages open). Can be with a fresh start.
If I turn off mail/calender/etc, it stays this high but if I restart the browser it will go back to normal (single digit % CPU usage).
If I turn mail back on, the high CPU usage returns immediately.

6.5.3206.63 (Stable channel) (64-bit)
Revision 5c2593a2fee32e8ecaa6e8fc0fa3aae84c8d3413
OS Windows 10 Version 22H2 (Build 19045.4046)
JavaScript V8 12.0.267.19

Any word about a fix? I can't have the computer running high CPU usage just because I have Vivaldi open in the background but I would still like to use it's mail client.

Zalex108

@invenio

Hi,
As you may already read,
Some users fixed the problem:

Removing the Accounts
Restarting
Readding them

--
Avoid Data loss
Follow the Backup | Reset links below

Vivaldi Backup | Reset + Extra Steps

cjsacksteder

Turning off Feeds solved the high CPU problem for me.

Vojtik69

@cjsacksteder Same to me. I had subscribed only one RSS channel in Feed. When I delete it and restart Vivaldi, the CPU is almost idle. When I re-added the one RSS channel, CPU is again on 50%. So I have to stop using Feed in Vivaldi.
Does anybody know, if this bug is officially reported already?

mib2berlin

@Vojtik69
Hi, I had this once but re add the feed solve it, can you share the feed?
If I can reproduce this you can report and I can confirm in the bug tracker.
I am mainly on Linux but can test on Windows 11, I don't use feeds usually.

Cheers, mib

Vojtik69

@mib2berlin Great, the feed link is https://www.mnhradiste.cz/rss?lang=cs
I am running on Window 10 (10.0.19045), if needed to know.

mib2berlin

@Vojtik69
Thanks, on Linux the feed doesn't cause any CPU usage, I will test later on Windows, Vivaldi 6.6.3271.57.

mib2berlin

@Vojtik69
Hm, cant reproduce this on Windows 11.

This is the problem with these issues, we have/had reports in the bug tracker but no tester or developer could ever reproduce it.
This time I use my work profile to test this, usually I use a clean profile, no extensions, all default.
I am sorry but I have no idea why this happen on your system.

Cheers, mib

Vojtik69

@mib2berlin Can any logfile or report help?

mib2berlin

@Vojtik69
Not I am aware of.
You can test this in a clean profile, if it work there something in your profile cause it.
You can check this very quickly, always close Vivaldi if you change anything in your install.

Open Help > About, there is the path to your profile:
C:\Users\username\AppData\Local\Vivaldi\User Data\Default
Rename the folder "Default" to "Default_bak", or something.
At next start Vivaldi create a new clean profile, don't install or change anything.
Simply close all tabs and add your feed, test.
To get back to your originale profile, move the new "Default" folder to a different location, rename "Default_bak" back.