• Login
    • Search
    • Categories
    • Recent
    • Tags
    • Users
    • Groups
    • Rules
    • Help

    Do more on the web, with a fast and secure browser!

    Download Opera browser with:

    • built-in ad blocker
    • battery saver
    • free VPN
    Download Opera

    High CPU usage when downloading a file

    Opera for Windows
    6
    15
    3174
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • antonk
      antonk last edited by antonk

      When downloading a file at 2+ MB/sec (from yandex.net) Opera heavily eats CPU on my PC (1 core is utilized 50-80%), which makes the browser and other application hardly usable.

      I usually download with Download Master, and it doesn't occupy CPU (at least this is hardly noticable) at same speeds.

      Opera: 64.0.3417.92 (32-bit)
      OS: Windows 7 64-bit SP1
      PC: Lenovo B580 / Intel Core i3-2328M 2.20 GHz / 16 GB RAM

      It seems to be a know issue, which presumably is (will be) fixed in 66 version.

      Reply Quote 1
        1 Reply Last reply
      • burnout426
        burnout426 Volunteer last edited by burnout426

        The issue you linked to has to do with the audio indicator animation in the tab causing high CPU usage when audio is playing. Downloading a file seems like a totally different issue.

        When downloading a file at 2+ MB/sec (from yandex.net) Opera heavily eats CPU on my PC

        Do you have a link to the file you're downloading? Or, is it an attachment in your email? I'm not seeing high cpu usage when downloading http://releases.ubuntu.com/19.10/ubuntu-19.10-desktop-amd64.iso for example in Opera 65.0.3467.48 64-bit on Windows 10.

        Reply Quote 0
          antonk 1 Reply Last reply
        • antonk
          antonk @burnout426 last edited by

          @burnout426 . thanks for trying to reproduce the issue.
          Yes, it happens always on my PC with this file - https://yadi.sk/d/93TjorEtVX3eu (I've tried to re-download it).
          When the Downloads window is opened the CPU usage increases a lot, whithout the window it is about 20% which is too high for an ordinary download.

          Reply Quote 1
            burnout426 1 Reply Last reply
          • burnout426
            burnout426 Volunteer @antonk last edited by

            @antonk said in High CPU usage when downloading a file:

            Yes, it happens always on my PC with this file - https://yadi.sk/d/93TjorEtVX3eu (I've tried to re-download it).

            Okay. I'll test with that later when I'm on a faster connection.

            Opera: 64.0.3417.92 (32-bit)

            I'll also test with 32-bit Opera and Opera v64 instead of just 65+ and 64-bit Opera. If it's in Opera v64 though, it might already be fixed for you in 65.

            (Are you purposely using the 32-bit version of Opera?)

            Reply Quote 0
              1 Reply Last reply
            • asd123asd
              asd123asd last edited by

              Downloading ANY file from ANY location hogs 25% of my CPU.

              opera version:66.0.3515.115

              Reply Quote 0
                leocg 1 Reply Last reply
              • leocg
                leocg Moderator Volunteer @asd123asd last edited by

                @asd123asd Latest stable version of Opera is 67, does the problem still happens with it?

                Reply Quote 0
                  asd123asd 2 Replies Last reply
                • asd123asd
                  asd123asd @leocg last edited by

                  @leocg said in High CPU usage when downloading a file:

                  @asd123asd Latest stable version of Opera is 67, does the problem still happens with it?

                  I'll test and get back. 10x for writing.

                  Reply Quote 0
                    1 Reply Last reply
                  • asd123asd
                    asd123asd @leocg last edited by

                    @leocg said in High CPU usage when downloading a file:

                    ersion of Opera is 67, does the problem s

                    Yep, it still happens on latest Opera. OK, I'm on a portable one but the official one from Opera's site. Here a screenshot:

                    123333.png

                    Reply Quote 0
                      1 Reply Last reply
                    • burnout426
                      burnout426 Volunteer last edited by

                      I tested again with Opera 67.0.3575.97 64-bit. Still can't reproduce the issue. I'm on Windows 10 OS Version 1909 (Build 18363.657). CPU issue is around 4 or 5% when downloading http://releases.ubuntu.com/19.10/ubuntu-19.10-desktop-amd64.iso.

                      Reply Quote 0
                        1 Reply Last reply
                      • asd123asd
                        asd123asd last edited by

                        Ya, on Win 10 it doesn't happen indeed. But on several W7 machines with latest Opera it happens consistently.

                        Reply Quote 0
                          asd123asd burnout426 2 Replies Last reply
                        • asd123asd
                          asd123asd @asd123asd last edited by

                          Does anyone ever look at these forums?

                          Reply Quote 0
                            leocg 1 Reply Last reply
                          • leocg
                            leocg Moderator Volunteer @asd123asd last edited by

                            @asd123asd Lots of people do.

                            Reply Quote 0
                              1 Reply Last reply
                            • donq
                              donq last edited by

                              What is common for those W7 machines? Some third-party software (antivirus, security suite, VPN, network monitor etc), interfering with network traffic or disk writing?

                              Reply Quote 0
                                1 Reply Last reply
                              • burnout426
                                burnout426 Volunteer @asd123asd last edited by

                                @asd123asd said in High CPU usage when downloading a file:

                                Ya, on Win 10 it doesn't happen indeed. But on several W7 machines with latest Opera it happens consistently.

                                All using the same Opera portable from the same drive? Can you reproduce the problem with Opera on the main system drive?

                                Reply Quote 0
                                  1 Reply Last reply
                                • A Former User
                                  A Former User last edited by

                                  You are using a remote resource which is effected by externalizes making benchmark numbers. Hence for testing, I changed to local resource.

                                  Reply Quote 0
                                    1 Reply Last reply
                                  • First post
                                    Last post

                                  Computer browsers

                                  • Opera for Windows
                                  • Opera for Mac
                                  • Opera for Linux
                                  • Opera beta version
                                  • Opera USB

                                  Mobile browsers

                                  • Opera for Android
                                  • Opera Mini
                                  • Opera Touch
                                  • Opera for basic phones

                                  • Add-ons
                                  • Opera account
                                  • Wallpapers
                                  • Opera Ads

                                  • Help & support
                                  • Opera blogs
                                  • Opera forums
                                  • Dev.Opera

                                  • Security
                                  • Privacy
                                  • Cookies Policy
                                  • EULA
                                  • Terms of Service

                                  • About Opera
                                  • Press info
                                  • Jobs
                                  • Investors
                                  • Become a partner
                                  • Contact us

                                  Follow Opera

                                  • Opera - Facebook
                                  • Opera - Twitter
                                  • Opera - YouTube
                                  • Opera - LinkedIn
                                  • Opera - Instagram

                                  © Opera Software 1995-2025