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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 Jan 1
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      I think this is a good example of what I've been saying all along: that the M1 is a great chip which is competitive with Intel and excels at many things, but that it all depends on the specific software.

      5 replies 0 retweets 31 likes
      Show this thread
    2. Hector Martin‏ @marcan42 Jan 1
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      I expect things will improve over time, but before moving your workflow to M1 Macs, *test* whatever it is you're doing. Still looking forward to doing my own tests under Linux, especially at low buffer sizes :-)

      2 replies 1 retweet 29 likes
      Show this thread
    3. puhitaku‏ @puhitaku Jan 1
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      Replying to @marcan42

      I suspect that the difference in memory size between the Macs affected the result. The author used reverb effects that might consume a large amount of memory. Still looking forward to an additional comparison with the same memory size.

      1 reply 0 retweets 1 like
    4. Hector Martin‏ @marcan42 Jan 1
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      Replying to @puhitaku

      I can't imagine a single DSP reason for a reverb plugin to need more than a few megabytes of RAM at most.

      1 reply 0 retweets 1 like
    5. puhitaku‏ @puhitaku Jan 1
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      Replying to @marcan42

      Honestly I'm not confident of my inference though :P but at least the Intel Mac in the article has 4x bigger memory than the M1 Mac and it might result a difference other than the difference of computational capacity. (BTW I started to donate Asahi Linux last month. Keep it up!)

      1 reply 0 retweets 1 like
    6. puhitaku‏ @puhitaku Jan 1
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      Replying to @puhitaku @marcan42

      I want the author to show more values like a graph of memory consumption and CPU % etc.

      1 reply 0 retweets 0 likes
    7. Hector Martin‏ @marcan42 Jan 2
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      Replying to @puhitaku

      I agree that it would be nice to confirm, but I thought about this and concluded that a reverb plugin shouldn't be eating RAM. i.e. if it is that would be a giant bug, but I don't think the fabfilter guys are that terrible at plugin dev ;)

      1 reply 0 retweets 1 like
    8. puhitaku‏ @puhitaku Jan 2
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      Replying to @marcan42

      puhitaku Retweeted オカモトタカシ(12sound LLC)＊法人化しました！

      I got some info related to reverbs:https://twitter.com/t_okmt_12sound/status/1345287358917197829 …

      puhitaku added,

      オカモトタカシ(12sound LLC)＊法人化しました！ @t_okmt_12sound
      「SpaceDesigner」はサンプリングリバーブで「Pro-R」は演算リバーブなのでメモリ搭載量の差がテキメンに出てる＆Logicは「再生時にどのトラックをアクティブにしているか」で負荷が著しく変動するのでその辺の条件揃えたい / “M1 Mac、まさかの敗北　Apple純正Logic Proで…” https://htn.to/2UUj4ipDeT 
      Show this thread
      1 reply 0 retweets 0 likes
    9. Hector Martin‏ @marcan42 Jan 2
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      Replying to @puhitaku

      Yes, I considered that. Sampling reverbs (i.e. convolution-based ones) should use at most 4x reverb tail length for the impulses (stereo cross pairs), which is less than 8MB per instance for a 10-second reverb time (which is quite long).

      1 reply 0 retweets 0 likes
    10. Hector Martin‏ @marcan42 Jan 2
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      Replying to @marcan42 @puhitaku

      Here is a test with Space Designer on Pro Tools on M1, where M1 still won with hundreds of instances. So there is something about Logic Pro with Space Designer that falls over. https://www.pro-tools-expert.com/production-expert-1/macbook-pro-m1-audio-power-test-logic-pro … So there is some

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 Jan 2
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      Replying to @marcan42 @puhitaku

      It might be that Pro Tools is running Space Designer in x86 mode under Rosetta, and that Apple *completely* fucked up the M1 port of Space Designer and it's *way* slower than emulating the x86 version. I could totally see that.

      4:54 AM - 2 Jan 2021
      1 reply 0 retweets 0 likes
        1. New conversation
        1. Hector Martin‏ @marcan42 Jan 2
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          Replying to @marcan42 @puhitaku

          Wait no, that was Logic Pro too. Then I dunno. Something's different. Maybe they *were* running Logic Pro under Rosetta anyway? The mind boggles.

          1 reply 0 retweets 0 likes
        2. puhitaku‏ @puhitaku Jan 2
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          Replying to @marcan42

          I've read your thoughts on some facts and they sound right. Actually, they were running Logic Pro and suffered degraded performance even with a native binary, while Pro Tools deals with equivalent tasks better. So yes, we weed no know what's wrong with Logic Pro additionally...

          0 replies 0 retweets 0 likes
          3. End of conversation

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