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Firefox-62.0 slow to compile ?

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  • #11
    Since people (or perhaps, just insane attempts at artificial intelligence) are still posting to this old thread, what I hope will be a final comment from me: For building from source, rustc has horrendous variability - even when rebuilding the same package (firefox or whatever) on the same machine and same system, so that all the cargo files have already been downloaded, the timings are all over the place. Sometimes, you get a faster build. Other times, you get a very slow build. It's just the nature of the beast.

    All rust really aims to do is to provide safer builds, and for that aim, or hope, it's far too early to form a view on whether or not it meets it.

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    • #12
      I think the firefox support team are in the best position to solve this.

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      • #13
        Chrome is good but deliberately eat all my ram.

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        • #14
          Originally posted by zerothruster View Post
          I saw that the source for firefox-62.0 was out, so I downloaded. Previous version I've built was 62.0beta20. I use a patch for system harfbuzz and system graphite2, so the first thing I did was diff the sources to see if anything relevant to that or the other system versions had changed - no. Started the build, left it. From time to time checked, still building. Eventually used 'top', at that point 'ld' was running so it was only using 100% cpu and finished shortly after.

          This is a Ryzen 1300X, with beta20 and -j4 the build and install had taken under 47 minutes. With 62.0 release, almost 131 minutes for ./mach build. Installed that, works fine, but thought I'd done something wrong in the build, or maybe --verbose was slowing it. Fresh source, dropped caches, retried without the patch : still building, not using more than 100% CPU (i.e. only one core) in either rustc or cc1plus, MOZ_MAKE_FLAGS=-j4 definitely exported.

          LFS/BLFS-8.3, gcc-8.2.0, llvm/clang 6.0.1, rustc-1.25.0. Kernel, if it matters, is 4.18.3 (and all are unchanged since I built beta20).
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          • #15
            After using Firefox for some time, it starts using a lot of CPU process or RAM. ... If Firefox runs faster in Safe Mode, then you know the problem lies in one of the add-ons or plugins. Disable all add-ons, and restart Firefox.

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            • #16
              Originally posted by Hugo56 View Post
              After using Firefox for some time, it starts using a lot of CPU process or RAM. ... If Firefox runs faster dgcustomerfirst in Safe Mode, then you know the problem lies in one of the add-ons or plugins. Disable all add-ons, and restart Firefox.
              Any progress?

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              • #17
                Originally posted by zerothruster View Post
                I saw that the source for firefox-62.0 was out, so I downloaded. Previous version I've built was 62.0beta20. I use a patch for system harfbuzz and system graphite2, so the first thing I did was diff the sources to see if anything relevant to that or the other system versions had changed - no. Started the build, left it. From time to time checked, still building. Eventually used 'top', at that point 'ld' was running so it was only using 100% cpu and finished shortly after.

                This is a Ryzen 1300X, with beta20 and -j4 the build and install had taken under 47 minutes. With 62.0 release, almost 131 minutes for ./mach build. Installed that, works fine, but thought I'd done something wrong in the build, or maybe --verbose was slowing it. Fresh source, dropped caches, retried without the patch : still building, not using more than 100% CPU (i.e. only one core) in either rustc or cc1plus, MOZ_MAKE_FLAGS=-j4 definitely exported.

                LFS/BLFS-8.3, gcc-8.2.0, llvm/clang 6.0.1, rustc-1.25.0. Kernel, if it matters, is 4.18.3 (and all are unchanged since I built beta20).
                This is about 63.0 As soon as I upgraded (beta channel) from 62.0 to 63.0 I noticed a considerable performance slowdown, especially related to the opening of web pages.
                Every time it has to connect to a URL, in the current tab or in a new one, the browser seems to... wait quite a lot (say 8-10 seconds) for something, while nothing seems to happen apart from the dot in the tab title moving back and forth.
                This did not occur with the previous releases and does not happen with other browsers, which keep loading pages as fast (or slow, depending on points of view) as usual. So that know, in my computer at least, Firefox has turned from being definitely the fastest browser to being definitely the slowest.

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