High CPU in IsSandboxedProcess() during video playback.

Zalex108

@lamarca

When playing video I don't use Social Networks, I know they are resource eaters.

Also, I use UBlock and Social and Mining lists blockers.

Link? For the videos? Any on YouTube.

As a detail, even happens on 480p definition.

Despite it's build for lot of process, is old HW.
I don't know for which is Chromium programed.

But the fact is that FF and also Maxton are very low on resources watching videos.

lamarca

@Zalex108 Hola. They called it that way. I don't join those group of poeple who accept me as a member. I got all the info in one place, politics, undersea cable surrounded by Putin submarine, painting. Only on twitter.
Did you by any chance know how much Vivaldi spends time and resource to load Tw?

Zalex108

@lamarca

No I don't know about Tweeter, nor on other browsers, I'll check.

Pathduck

@Zalex108 Are you able to reproduce the same issue I'm describing in the first posts? Are you seeing high CPU usage in the rendering process caused by calls to the IsSandboxedProcess() function in vivaldi_child.dll? You need to use Process Explorer to look at thread CPU usage in the render process while playing back video.

Are you also able to then run a clean profile and see if the issue is gone there? If not - then it's not the same issue we're having. High CPU could be caused by a thousand different reasons. Nor is this thread about high GPU usage as that's not what I see. I'd really like to keep this thread free of guesswork or conjecture.

I am also only testing this on YouTube videos to keep other causes out of the equation.

Then again, it's my fault, I should've kept the title more specific.

Zalex108

@Pathduck

Ok, I'll check that specifically.

npro

@Pathduck said in High CPU in IsSandboxedProcess() during video playback.:

Set Override software rendering list to Disabled. Current is Default which I assume is Enabled.

ehm, this option overrides Chrome's built-in software rendering list and permits GPU acceleration on unsupported system configurations. I don't think that matters with your GPU but I wouldn't disable it.

Pathduck

@npro Yes, my fault. I meant to say it's set to default now which is Disabled. I tried setting it Enabled to see if it made any change, and it didn't.

lamarca

Hello there, I wrote above " I don't join those group of poeple who accept me as a member".
The correct quote is:

"I don’t care to belong to any club that will have me as a member".
by Groucho Marx

Do it, @Zalex108 , don't forget they run an outdated engine.
bye or have a nice day, it depends on your TZ

Pathduck

OK so I've been testing some more theories. In fact this high CPU appear to only occur on YouTube. For instance Vimeo HD videos, DailyMotion clips, HTML5 test videos all play fine.

Just YouTube seems to cause the excessive CPU. Even going to sites with embedded YouTube videos cause it, the subframe itself uses the CPU

lamarca

@Pathduck It's not polite and rude a short reply.
It's your setup, OS installed by EUFI, the Spectre still resident in the Cpu.

Pathduck

@lamarca Please don't derail the thread with absurd notions like that, it's not helping. I think I already showed the issue does not appear in a clean profile so obviously it's not "Spectre" or something in my UEFI firmware.

Where am I being rude, or what does the "short reply" mean? Sometimes I feel you're replying to the completely wrong thread pal

lamarca

@Pathduck It's in the Guidelines.
For me, the issue lies on your setput. Its not abnormal high cpu usage. On my work, the usage is almost 100% in four segregated environmet.

Be excellent to each other - it's the fellow Damo signature.

Pathduck

OK so an update here. For some weird and annoying reason, performance when playing video on YouTube is now showing low values like other browsers. It actually started behaving normally before the last Snapshot was released today so it's wasn't the update.

Only thing I did was playing around with profiles, not changing any settings in Vivaldi that I can think of. When I tested back in the old profile the issue was gone.

What's annoying is that since I didn't know what changed, there is no way to know what caused it. I don't believe in black magic, so something must have changed, but what? And since I can't know what caused it (it's been like this for weeks, maybe even months before I noticed), there is no way to help others who may have the same issue. So yes, very annoying. But I'm glad I didn't have to reset my profile completely, it would've been a chore.

I'd still really like to know, if possible from a dev, what the IsSandboxedProcess does and what could cause the CPU usage I've seen earlier. Maybe @Gwen-Dragon might be helpful here?

Here's how it looks in Process Explorer now; the same 1080p/24fps video I tested with earlier. CPU is down to 4-5% and the main workload is done by ChromeMain:

alt text

Pathduck

By the way, @Zalex108 Did you find out anything else, did you recreate what I saw?

Zalex108

@Pathduck

Hi,
The reading ons PExp are not much high I think, even there are other threats with more CPU, and they don't appear in your video, maybe related on the profile CMD Line since are not related to extensions.

So, I'll check.
Sorry for the Hijacking.

And good to know your problem is solved.

lamarca

The issue lies on the user setup. YT videos don't need that high number of instruction to be reproduced.

Pathduck

@Gwen-Dragon said in High CPU in IsSandboxedProcess() during video playback.:

In my tests watching a Youtube video on my 2.8 Stable Windows 10 x64 i can see 2--3 IsSandboxedProcess in vivaldi_child.dll where some vivaldi.exe subprocess consuming 3% CPU.

Exactly, that's how it should be. In the videos and screenshots I posted earlier you can see this was not the case. But then it sorted itself out... Seriously, it's been like that for weeks and suddenly I'm faffing around and it solves itself, with no-one any wiser - Grrr

Yes you can tag it as Resolved. It was no big issue - for me mostly an annoyance, I have a fast 8-core. For someone with an old dual-core machine, this could cause very high load and possibly hang/stuttering. That's why I wanted to figure it out.

lamarca

fourty three posts. its a distortion. It is not our issue, Lilo. it's the user setup, I know @Pathduck is not a moron, we have our guidelines, he is an advanced user.
43 replies. I don't take it.