Poor performance and 50% CPU usage - 10.53 Vista 64

Poor performance and 50% CPU usage - 10.53 Vista 64

I saw another person with the same problem but i think he did not detail enough so maybe you didn't understand.

I just fixed my main computer (E6550 @ 3.67GHz, 8GB RAM, Sapphire HD3870 512MB, 320GB, Vista Ultimate 64-bit), and i find that Opera runs well for a few minutes then it goes to 50% CPU usage. My CPU is fast enough to keep the browser running decently even when that happens, but it's obvious that something is wrong because Opera animations and any flash video that i am watching slows down, also smooth scrolling becomes really jerky but i don't use it anyway, i just tried to see how it behaves when it goes to high CPU load and it runs like crap.

I have two laptops both with 2GHz dual-core AMD Turion and 2GB RAM, running Windows 7 Ultimate 64-bit and i have no problems there. But i don't want to be stuck with IE on my main computer. I also have no time to reinstall Windows or upgrade to Win7 at this moment. I have good computer skills so if you need anything from me please ask, i want this to get fixed ASAP. The problem goes away for 10-15 minutes if i close and restart Opera, then it will come back.

I have a feeling it has to do with Flash, so i'll uninstall the flash player plugin and report back.

It's not Flash. Any other ideas?

Why are you sure it's not Flash? I have basically the exact same issue, but I often have 50+ tabs open across a few windows, so it's been hard for me to pin down the issue. It's not my system, as I have an i7 860 and 8GB of RAM. But like you said, Flash videos would be extremely jerky, scrolling would be unresponsive, etc, and the issue would disappear temporarily if I exited and restarted. So I suspected Flash, but I've been trying to weed out the number of tabs I have and see if any one particular one is causing issues.

same here. i thought it had been a result of me turning my pagefile pretty much off (200mb so that vista wouldn't moan) on 8gb ram. (i'd just come to do a search for pagefile (or lack thereof) issues) 10.53 just installed the first time booting/launching opera after installing the second 4gb of ram.

only flash tab i have open should be a youtube one. i'd started closing tabs down from 50 to 35 ... including ones i've opened regularly for months.

It's not Flash because i left Opera open with a few tabs, none of which are based on Flash. I came back after about 15 minutes and there i have the same 50% CPU usage and slow performance. There's something very wrong with 10.53...

C'mon where are the developers? Until now Opera has been THE BEST browser for me, but this bug is really infuriating. I don't want to give up Opera, i just want this to get fixed.

It's difficult to reproduce. I just opened 3 last.fm song pages, and shortly everything slowed to a crawl. I closed those tabs, and it resumed snappiness. I can't reproduce it now though. I've since closed almost all of the last.fm pages I had been saving, and it seems to be doing better. *shrug*

You're lucky. Here once it gets slow, it STAYS slow and at 50% CPU even if i close all tabs.

Originally posted by graalmeister:

It's difficult to reproduce. I just opened 3 last.fm song pages, and shortly everything slowed to a crawl. I closed those tabs, and it resumed snappiness. I can't reproduce it now though. I've since closed almost all of the last.fm pages I had been saving, and it seems to be doing better. *shrug*

i have 2 last.fm pages open (and have had them open for a few months) and they've not slowed anything down.

It just started happening on my laptop as well. Will anyone bother to investigate this or do i have to whip OllyDbg out and patch it myself?

I have exactly the same problem on my Phenom II x2 with win 7, after few minutes of runnig Opera processor usage jumps to 50% and stays there even if all tabs are closed.

I have a similar problem. In sites like reddit, Opera hangs when scrolling down. You'll turn the scroll wheel, opera will stop responding for 2-3 seconds, cpu at 50% (100% usage in one core), then scroll the page and start responding. When you try to scroll again, it will hang again. It makes web surfing really unusable.

This problem does not exists in 10.51. I reinstalled 10.51, however Opera "updated" it at the next restart. Really, fix it or I'm returning to 10.10, slight speed gains in JS is not worth that many problems.

I'm having the same Issue on XP 32 bit using Opera 10.53.
CPU spikes upto 50% CPU usage by opera and stays there even when all tabs are closed, just stays on 50% or 49% cpu usage constantly.
very frustrating as I can't pinpoint what starts it off.
A painful bug that is hopefully fixed soon so I can start using Opera again (I miss it already)

Found a fix on this thread
http://my.opera.com/community/forums/topic.dml?id=543941

& has been working for me fo quite a while now. Essentially deleting (or renaming) the operaprefs.ini file allowed Opera to create a new one & all then worked again (with a couple of settings lost that had to be re-entered with no drama for me at least)

I've deleted that file, didn't change anything in Opera settings after, 10 minutes later: http://img203.imageshack.us/i/operaat.jpg/

if you run process explorer and check opera and see what is using the cpu you may be able to see what plugin is causing the cpu usage.

http://img214.imageshack.us/i/opera2x.jpg/
Either I'm checking it wrong, or plugins have nothing to do with that usage.

Hmm, it looks like it wasn't Operas fault, I've disabled hardware acceleration in flash plugin options, and everything seems to be OK now.