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    CPU usage during compilation

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    • d.healeyD
      d.healey @ospfeigrp
      last edited by

      @ospfeigrp I usually leave a few threads available for the system to do other things but use all 48 if you want :)

      Libre Wave - Freedom respecting instruments and effects
      My Patreon - HISE tutorials
      YouTube Channel - Public HISE tutorials

      ospfeigrpO 1 Reply Last reply Reply Quote 0
      • ospfeigrpO
        ospfeigrp @d.healey
        last edited by

        @d-healey thanks, I just try recompiling HISE standalone with -j 40 and it's very slow around "Linking HISE standalone - App" this time it took 8 minutes for the standalone.

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        • d.healeyD
          d.healey
          last edited by d.healey

          Linking is always single threaded with gcc/g++

          Libre Wave - Freedom respecting instruments and effects
          My Patreon - HISE tutorials
          YouTube Channel - Public HISE tutorials

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          • d.healeyD
            d.healey
            last edited by

            This might be a solution worth investigating for multi-threaded linking - https://lld.llvm.org/

            Libre Wave - Freedom respecting instruments and effects
            My Patreon - HISE tutorials
            YouTube Channel - Public HISE tutorials

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            • d.healeyD
              d.healey
              last edited by

              I found what was causing my CPU issues. The CPU was power throttling. I've increased the power limits and now I'm getting much better clock speed when compiling.

              Libre Wave - Freedom respecting instruments and effects
              My Patreon - HISE tutorials
              YouTube Channel - Public HISE tutorials

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              • d.healeyD
                d.healey
                last edited by d.healey

                I just tried lld, seems it might be a bit faster at linking but I'd need to do some proper benchmarks to know for certain.

                In case anyone else (or future Dave) is thinking of using lld (or gold) for linking here is what you need to do:

                Put the following in the Extra Linker Flags box in Projucer

                For lld:
                -fuse-ld=lld
                

                With lld you need to use Clang instead of GCC. So the make command will look something like: make CXX=clang++ CONFIG=Release -j 6

                For gold:
                -fuse-ld=gold
                -Wl,--threads
                -Wl,--thread-count=6
                

                Libre Wave - Freedom respecting instruments and effects
                My Patreon - HISE tutorials
                YouTube Channel - Public HISE tutorials

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                • d.healeyD
                  d.healey
                  last edited by d.healey

                  I've tried both of these linkers so far and have had no success in improving compile times.

                  For some reason, which I can't work out, clang + lld will compile and link but the linking is still only single threaded. @Christoph-Hart Any ideas?

                  With gold the compiling via GCC works but the linking fails with an error - I haven't dug into this one much more because it seems lld is the better of the two.

                  Libre Wave - Freedom respecting instruments and effects
                  My Patreon - HISE tutorials
                  YouTube Channel - Public HISE tutorials

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                  • Christoph HartC
                    Christoph Hart
                    last edited by

                    I think the newest script node version compiles a little bit faster because the template system is a little bit less complex, but in my experience the only way to really speed up compile times is to get a better system :)

                    d.healeyD 1 Reply Last reply Reply Quote 0
                    • d.healeyD
                      d.healey @Christoph Hart
                      last edited by

                      @Christoph-Hart Compile time is fine, it's the linking that's the problem, it only uses a single thread.

                      Libre Wave - Freedom respecting instruments and effects
                      My Patreon - HISE tutorials
                      YouTube Channel - Public HISE tutorials

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                      • d.healeyD
                        d.healey
                        last edited by

                        Finally solved the linker threading thing.

                        Add this to the Extra Linker Flags section -flto=auto :D

                        Libre Wave - Freedom respecting instruments and effects
                        My Patreon - HISE tutorials
                        YouTube Channel - Public HISE tutorials

                        ustkU 1 Reply Last reply Reply Quote 2
                        • ustkU
                          ustk @d.healey
                          last edited by ustk

                          @d-healey Nice one! Is that linux only?

                          EDIT: oh yes it's linux... I wonder if I can speed up the process on mac too...

                          Can't help pressing F5 in the forum...

                          d.healeyD Y 2 Replies Last reply Reply Quote 0
                          • d.healeyD
                            d.healey @ustk
                            last edited by

                            @ustk I think Xcode already does multi-threaded linking.

                            Libre Wave - Freedom respecting instruments and effects
                            My Patreon - HISE tutorials
                            YouTube Channel - Public HISE tutorials

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                            • Y
                              yall @ustk
                              last edited by

                              @ustk mac je met 1h pour un vst. Windows 4 minutes. Ça rend ouf

                              Matt_SFM 1 Reply Last reply Reply Quote 0
                              • Matt_SFM
                                Matt_SF @yall
                                last edited by

                                @yall pareil. 1/2 an hour on my mac (Intel i7) , 5mins on pc

                                Develop branch
                                Win10 & VS17 / Ventura & Xcode 14. 3

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                                • d.healeyD
                                  d.healey
                                  last edited by

                                  How many threads are you guys using for your builds?

                                  Libre Wave - Freedom respecting instruments and effects
                                  My Patreon - HISE tutorials
                                  YouTube Channel - Public HISE tutorials

                                  oskarshO Christoph HartC Matt_SFM 3 Replies Last reply Reply Quote 0
                                  • oskarshO
                                    oskarsh @d.healey
                                    last edited by

                                    @d-healey

                                    I am using all threads -2
                                    f06ee91c-7998-4868-82d8-b7699931c5bb-image.png

                                    I am building using the batchCompile

                                    make CONFIG=Release AR=gcc-ar -j`nproc --ignore=2`
                                    
                                    d.healeyD 1 Reply Last reply Reply Quote 0
                                    • Christoph HartC
                                      Christoph Hart @d.healey
                                      last edited by

                                      @d-healey said in CPU usage during compilation:

                                      How many threads are you guys using for your builds?

                                      Yes. :)

                                      1 Reply Last reply Reply Quote 3
                                      • d.healeyD
                                        d.healey @oskarsh
                                        last edited by

                                        @oskarsh I was asking the Mac guys who are saying their builds are slow. :)

                                        Libre Wave - Freedom respecting instruments and effects
                                        My Patreon - HISE tutorials
                                        YouTube Channel - Public HISE tutorials

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                                        • Matt_SFM
                                          Matt_SF @d.healey
                                          last edited by

                                          @d-healey Just 1 thread here. Do you know if there's a way to change that ?

                                          Develop branch
                                          Win10 & VS17 / Ventura & Xcode 14. 3

                                          d.healeyD 1 Reply Last reply Reply Quote 0
                                          • d.healeyD
                                            d.healey @Matt_SF
                                            last edited by

                                            @Matt_SF That explains it. There is definitely a way but I can't remember how. Google will help you here :)

                                            Libre Wave - Freedom respecting instruments and effects
                                            My Patreon - HISE tutorials
                                            YouTube Channel - Public HISE tutorials

                                            Christoph HartC 1 Reply Last reply Reply Quote 1
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