Yay Building | Why Its Taking Too Long?

3 years ago by ProgKing to c/linux

I decided to yay resolve-davinci but it takes a WHOLE DAY to build(Building CXX object). Why? I have Ryzen 7 1700x and its usage is only up to 25%

deong 13 points 3 years ago

You can set MAKEFLAGS in /etc/makepkg.conf to something like "-j8" (where "8" should be something like the number of cores you have or maybe number of cores minus one or two if you want to leave some CPU capacity available.

However, the build instructions for a specific package can override these defaults. You'd have to look at the resolve-davinci package files to see if it does that for some reason that might be important.

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Molecular0079 11 points 3 years ago

Better yet, use ~/.makepkg.conf to avoid setting it system wide and use MAKEFLAGS="-j$(nproc)" to have it automatically detect how many processes to use.

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ProgKing 7 points 3 years ago

Thanks! It was only 2 cores by default :)

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Molecular0079 3 points 3 years ago

Pretty sure what you were actually compiling was qt5-webkit, which davinci-resolve depends on, and yeah its a bitch of a compile without multi-threading.

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fxttr 9 points 3 years ago

We would need to have way more information when we should say you why. But my first guess would be that you're only using one core.

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orsetto 12 points 3 years ago

I had the same problem the other day and yes, it was only using one core.

Turns out you just need to set MAKEFLAGS="-j$(nproc)". I didn't test it yet, but the arch wiki says so

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ProgKing 4 points 3 years ago

Thank you!

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fxttr 3 points 3 years ago

Yep.

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n1729 1 point 3 years ago

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eric5949 8 points 3 years ago

There's a file, I can't remember what it is but I have it written on a sticky note on my desk at home, where I edited the makeflag or something to use 10 threads instead of 2 (I have a r5 3600) so maybe you just aren't using all your threads.

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