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    Oracle Linux Installation and performance seems insanely bad

    Water Closet
    oracle linux installation performance slow linux fedora centos ubuntu
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    • DustinB3403D
      DustinB3403
      last edited by DustinB3403

      Has anyone else kicked the tires on Oracle Linux and thought that the install seemed to take a long time to install?

      It may just be my environment (I've honestly not tested outside of my lab) but it seems to take much longer to install compared to Ubuntu (desktop and server), Fedora and CentOS (granted this is essentially dead, I wanted a comparison).

      1 Reply Last reply Reply Quote -1
      • DustinB3403D
        DustinB3403
        last edited by DustinB3403

        For something to discuss look what Oracle Linux 8 (as a VM on XCP-NG is doing to my hosts performance while running updates only).

        VM Running - Notice the CPU
        chrome_6N4w7t0Fp3.png

        Hypervisor performance with VM running
        chrome_C27e9nWSns.png

        Hypervisor performance with VM powered off (granted you can only see a bit of a the performance drop but the difference in CPU usage is insane)
        chrome_uaBTEWeIQD.png

        1 Reply Last reply Reply Quote 0
        • DustinB3403D
          DustinB3403
          last edited by

          Just to add, yes the VM's drivers were install Paravirtualized.

          The install had completed some time ago (I started the install a week ago I believe) and eventually just walked away as I couldn't wait to watch it complete.

          1 1 Reply Last reply Reply Quote 0
          • DustinB3403D
            DustinB3403
            last edited by

            I initially thought that it must be something with the small 2 core 2gb install I had built a while ago and eventually jumped it up to what is shown in the screenshots.

            Still the performance is awful and I'm not sure if it is something I'd consider using in production without much more testing.

            1 Reply Last reply Reply Quote 0
            • EddieJenningsE
              EddieJennings
              last edited by EddieJennings

              When I spun up an Oracle 8 VM last week or so, I didn't notice the install process taking an extraordinary long time.

              DustinB3403D 1 Reply Last reply Reply Quote 0
              • DustinB3403D
                DustinB3403 @EddieJennings
                last edited by

                @EddieJennings On what hypervisor, I'm assuming XCP-ng?

                EddieJenningsE 1 Reply Last reply Reply Quote 0
                • DustinB3403D
                  DustinB3403
                  last edited by

                  Late follow-up screenshot of host performance with the VM powered off.

                  chrome_8mDIOpsbgd.png

                  1 Reply Last reply Reply Quote 0
                  • notverypunnyN
                    notverypunny
                    last edited by

                    So I realize that CentOS is more or less dead for most folks, but have you tried spinning up the equivalent CentOS version to compare apples to apples? I'll admit that I've never touched Oracle Linux and haven't had need for CentOS in a while but big performance differences shouldn't really be a thing between modern linux distros.... Maybe your Oracle install has additional encryption (full system ?) or something with the filesystem or mount options that's making it work harder?

                    ObsolesceO 1 Reply Last reply Reply Quote 0
                    • 1
                      1337 @DustinB3403
                      last edited by 1337

                      @DustinB3403 said in Oracle Linux Installation and performance seems insanely bad:

                      Just to add, yes the VM's drivers were install Paravirtualized.

                      The install had completed some time ago (I started the install a week ago I believe) and eventually just walked away as I couldn't wait to watch it complete.

                      To me "VM's drivers were install Paravirtualized" sounds like a warning flag.

                      What do you mean exactly?
                      Linux has kernel support for running virtualized and has had for a long time. You shouldn't install any drivers of any kind.

                      1 1 Reply Last reply Reply Quote 0
                      • EddieJenningsE
                        EddieJennings @DustinB3403
                        last edited by

                        @DustinB3403 said in Oracle Linux Installation and performance seems insanely bad:

                        @EddieJennings On what hypervisor, I'm assuming XCP-ng?

                        KVM (Centos 8 Stream).

                        1 Reply Last reply Reply Quote 0
                        • 1
                          1337 @1337
                          last edited by 1337

                          @Pete-S said in Oracle Linux Installation and performance seems insanely bad:

                          @DustinB3403 said in Oracle Linux Installation and performance seems insanely bad:

                          Just to add, yes the VM's drivers were install Paravirtualized.

                          The install had completed some time ago (I started the install a week ago I believe) and eventually just walked away as I couldn't wait to watch it complete.

                          To me "VM's drivers were install Paravirtualized" sounds like a warning flag.

                          What do you mean exactly?
                          Linux has kernel support for running virtualized and has had for a long time. You shouldn't install any drivers of any kind.

                          To follow up on that note, xen has guest tools you can install. But they are just for communication between the guest and the hypervisor so that the hypervisor knows how much memory the guest uses and so on.

                          1 Reply Last reply Reply Quote 0
                          • travisdh1T
                            travisdh1
                            last edited by

                            I haven't installed CentOS in a long time now, but even the installation routine was dog slow when I did (CentOS 7).

                            1 1 Reply Last reply Reply Quote 0
                            • 1
                              1337 @travisdh1
                              last edited by 1337

                              @travisdh1 said in Oracle Linux Installation and performance seems insanely bad:

                              I haven't installed CentOS in a long time now, but even the installation routine was dog slow when I did (CentOS 7).

                              I did not too long ago (and RHEL as well) but I didn't notice anything different versus Fedora. All of them where slow-ish compared to Debian. But Debian is very minimal in comparison so it makes sense that it's faster to install.

                              With comparable installs (the same packages) the difference between distros should be small - especially if they are the same "family". What could make a big difference however is bandwidth to the package repositories - if it's not on the ISO.

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                              • DustinB3403D
                                DustinB3403
                                last edited by

                                So the issue I have with the drivers thought @Pete-S is the performance of this VM immediate (at the start of installation) begins to cause the host trouble.

                                I also tested with Fedora Desktop and Ubuntu server and neither of these caused the host CPU usage to skyrocket.

                                1 1 Reply Last reply Reply Quote 0
                                • 1
                                  1337 @DustinB3403
                                  last edited by 1337

                                  @DustinB3403 said in Oracle Linux Installation and performance seems insanely bad:

                                  So the issue I have with the drivers thought @Pete-S is the performance of this VM immediate (at the start of installation) begins to cause the host trouble.

                                  I also tested with Fedora Desktop and Ubuntu server and neither of these caused the host CPU usage to skyrocket.

                                  So it's already before it's actually installed?

                                  I might give it a try on our servers. What version xcp-ng are you running and what version Oracle Linux are you installing?

                                  DustinB3403D 1 Reply Last reply Reply Quote 0
                                  • DustinB3403D
                                    DustinB3403 @1337
                                    last edited by

                                    @Pete-S said in Oracle Linux Installation and performance seems insanely bad:

                                    @DustinB3403 said in Oracle Linux Installation and performance seems insanely bad:

                                    So the issue I have with the drivers thought @Pete-S is the performance of this VM immediate (at the start of installation) begins to cause the host trouble.

                                    I also tested with Fedora Desktop and Ubuntu server and neither of these caused the host CPU usage to skyrocket.

                                    So it's already before it's actually installed?

                                    I might give it a try on our servers. What version xcp-ng are you running and what version Oracle Linux are you installing?

                                    Current XCP-ng and 8.3 Oracle Linux (used the full dvd iso)

                                    1 1 Reply Last reply Reply Quote 0
                                    • ObsolesceO
                                      Obsolesce @notverypunny
                                      last edited by

                                      @notverypunny said in Oracle Linux Installation and performance seems insanely bad:

                                      So I realize that CentOS is more or less dead

                                      No CentOS is not dead for anyone unless the software you are running on it no longer supports CentOS.

                                      On the servers you all use that are running CentOS, what software are you using on it that will no longer support running on CentOS?

                                      Perhaps one of tje reasons a software vendor, for example NGINX, would stop supporting CentOS, is if the release cycle is too crazy? Well,
                                      we know that won't be the case because they already support ones that are faster.

                                      So really, what are you all thinking? What software is dumping CentOS, why, and why not distros on a more frequent cycle instead that they support?

                                      DustinB3403D 1 2 Replies Last reply Reply Quote -1
                                      • DustinB3403D
                                        DustinB3403 @Obsolesce
                                        last edited by DustinB3403

                                        @Obsolesce CentOS as a product is dead, the alternatives are RHEL or CentOS Stream.

                                        Read the news, Redhat IBM has killed the CentOS downstream development (by simply not paying the developers to work on it).

                                        Edit: Also make your own flame post don't hijack someone else'.

                                        ObsolesceO scottalanmillerS 2 Replies Last reply Reply Quote 0
                                        • 1
                                          1337 @Obsolesce
                                          last edited by

                                          @Obsolesce said in Oracle Linux Installation and performance seems insanely bad:

                                          @notverypunny said in Oracle Linux Installation and performance seems insanely bad:

                                          So I realize that CentOS is more or less dead

                                          No CentOS is not dead for anyone unless the software you are running on it no longer supports CentOS.

                                          On the servers you all use that are running CentOS, what software are you using on it that will no longer support running on CentOS?

                                          Perhaps one of tje reasons a software vendor, for example NGINX, would stop supporting CentOS, is if the release cycle is too crazy? Well,
                                          we know that won't be the case because they already support ones that are faster.

                                          So really, what are you all thinking? What software is dumping CentOS, why, and why not distros on a more frequent cycle instead that they support?

                                          Biggest problem are other distros that use centos as their upstream.

                                          End users might run software that depends on RHEL/CentOS, but is not supported on Fedora (but might work or maybe not).

                                          1 Reply Last reply Reply Quote 0
                                          • ObsolesceO
                                            Obsolesce @DustinB3403
                                            last edited by

                                            @DustinB3403 said in Oracle Linux Installation and performance seems insanely bad:

                                            CentOS Stream

                                            That's what I'm referring to.

                                            DustinB3403D 1 Reply Last reply Reply Quote 0
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