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Ubuntu 21.04 Moves Ahead With Enabling LTO Optimizations For Greater Performance

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  • Ubuntu 21.04 Moves Ahead With Enabling LTO Optimizations For Greater Performance

    Phoronix: Ubuntu 21.04 Moves Ahead With Enabling LTO Optimizations For Greater Performance

    Ubuntu 21.04 is moving ahead with plans to enable compiler link-time optimizations (LTO) by default for package builds in the name of greater performance...

    https://www.phoronix.com/scan.php?pa...21.04-Does-LTO

  • #2
    It's good to see that another distributions are following the OpenMandriva path. Mandriva enable LTO few Yeats ago.
    Last edited by xpris; 20 March 2021, 09:19 AM.

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    • #3
      Originally posted by xpris View Post
      It's good to see that another distributions are following the OpenMandriva path. Mandriva enable LTO few Yeats ago.
      Yeah, #t2sde https://t2sde.org was probably one of the first doing so ages ago ;-)

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      • #4
        How does this work? When installing a package, does it require some compile time? Or is this just when compiling the app, and is the install process no different?

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        • #5
          Originally posted by peterdk View Post
          How does this work? When installing a package, does it require some compile time? Or is this just when compiling the app, and is the install process no different?
          LTO is done at compile-time by the distribution packagers. Your PC doesn't have to work any harder when installing packages; it's the same as before.

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          • #6
            is this already live? i might do do-release-upgrade -d and try it out.

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            • #7
              Originally posted by sireangelus View Post
              is this already live? i might do do-release-upgrade -d and try it out.
              ubuntu 21.04, as the name suggests, is released in April 2021

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              • #8
                If you are on a Intel 4th generation Core "Haswell" and using the integrated GPU, do not upgrade, there are GPU hangs.

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                • #9
                  I've tried Kubuntu daily yesterday. I saw a major regression though for my system (of 10 FPS in Company of Heroes 2 - from 75 to 65 FPS), but I've tried out the new LLVM12 RC3 and compiled 5.12 RC3 with Clang and LTO, maybe it was due to not running the Xanmod Kernel sources there. I certainly will revisit this once 21.04 is released.

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                  • #10
                    Waiting for the popos spin

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