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CPU spikes and crackling in Logic

GLaceyGLacey
in Logic Pro

Don’t you guys experience higher CPU load in LP 2.0? (compared to 1.x)
For a few days I face some crackles while the CPU meter goes red in my projects even when I have only 3 tracks: 2 alchemy synths and 1 studio bass.
If I just create a new blank project without any instruments added, the CPU meter shows ~15-20% load.
I didn’t change the audio buffer size, it’s set to 256.
What’s wrong here?

Already restarted the iPad and finally deleted and reinstalled Logic, but it haven’t fixed the issue.

M1 Pro, OS17.5 and 17.5.1

Comments

  • NeuMNeuM

    Have any external hardware connected to the iPad?

  • GLaceyGLacey

    @NeuM said:
    Have any external hardware connected to the iPad?

    Actually I face this issue with or without hardware connected. :(

  • espiegel123espiegel123

    @GLacey said:

    @NeuM said:
    Have any external hardware connected to the iPad?

    Actually I face this issue with or without hardware connected. :(

    Have you fully rebooted?

  • GLaceyGLacey

    @espiegel123 said:
    Have you fully rebooted?

    Yes. Furthermore I updated to 17.5.1 from 17.5, which didn’t help either.

  • IskanderIskander

    The same for me.

    iPad Pro M1 2TB 16GB RAM

    Very peculiar. I also had a small project (50 sec) including 3 tracks with Session Player.
    There was a 'CPU overload' message in between. And that with the highly praised M1 processor!

    Did Apple include something in the last LP update to make us upgrade to M4?

  • SamuSamu

    @Iskander said:
    The same for me.

    iPad Pro M1 2TB 16GB RAM

    Very peculiar. I also had a small project (50 sec) including 3 tracks with Session Player.
    There was a 'CPU overload' message in between. And that with the highly praised M1 processor!

    Did Apple include something in the last LP update to make us upgrade to M4?

    'Tinfoil Hat On'. Apple slapped the 'ChromaGlow' on a bunch of the presets used by the session players and it's a CPU HOG :sunglasses:

  • IskanderIskander

    Thanks Samu. I'll keep that in mind.

  • StrizbizStrizbiz

    @Samu said:

    @Iskander said:
    The same for me.

    iPad Pro M1 2TB 16GB RAM

    Very peculiar. I also had a small project (50 sec) including 3 tracks with Session Player.
    There was a 'CPU overload' message in between. And that with the highly praised M1 processor!

    Did Apple include something in the last LP update to make us upgrade to M4?

    'Tinfoil Hat On'. Apple slapped the 'ChromaGlow' on a bunch of the presets used by the session players and it's a CPU HOG :sunglasses:

    I kinda noticed that too and im also on a 2020 iPad Pro so after 3 players it's a wrap lol. I probably won't renew my yearly subscription, not that Logic Pro for iPad isn't good but I honestly dont use it as much as I thought I would and my iPads feel old as hell when I use it now lol, plus I have the desktop version running smoothly on my M3 Max

  • CrabmanCrabman

    Ok, thanks. I‘m on M2 pro but i gonna wait a lil longer til updating. I‘m in the middle of a few projects and i absolutely don‘t want to deal with stuff like this. I experienced it too often in ios over the years as well.

  • JRSIVJRSIV

    As @Samu hinted at it's pretty common to think there's engineered obsolescence within the Apple ecosystem. For me the incredible speed of time passing, at least how I perceive it, can color my opinions for sure. I mean as a kid those last few weeks of school before summer break seemed like an eternity. Now, staring down 50, I feel time just races by; like I can't believe it's nearly June already...

    Sorry to ramble but issues like @GLacey is having naturally make us question if our kit is "good enough" to run full sessions in Cubasis and Logic. I mean I absolutely got that FOMO feeling looking at the new iPads. My main iPad is a Air 5 with the M1 chip that I got the week it came out. All the reviews put over how powerful the M1 chip was and I felt like I future proofed myself. 2 years whiz by and now there's the new Pro with an M4(!) and the new Air 6 has an M2.

    So there's always going to be a "bigger and better" but you'd like to think that the iPads Apple said were the fastest ever, longest battery, yadda, yadda, etc. just a year or two ago don't start running like a broken Etch-A-Sketch...

  • bluegroovebluegroove
    edited May 2024

    I was struggling with this too, but I think I've found the reason/solution: I've noticed that if you have a session player in the project and you edit any session region or any associated region in any way, then you'll see a little spinning wheel on the top right next to the undo button while the CPU recalculates/regenerates the session player. If you try playing while that wheel is still spinning then the CPU will peg out in the red. If you wait for that wheel to finish before playback then you are usually fine.

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