这是一个创建于 1842 天前的主题，其中的信息可能已经有所发展或是发生改变。
Retain/Release an NSObject, M1 v.s. current gen Intel, by David Smith
fun fact: retaining and releasing an NSObject takes ~30 nanoseconds on current gen Intel, and ~6.5 nanoseconds on an M1
…and ~14 nanoseconds on an M1 emulating an Intel
(The price we pay for this is that certain kinds of multithreading bugs can remain dormant on Intel but become symptomatic on M1. Use Thread Sanitizer to test your apps!)
this further improvement is because uncontended acquire-release atomics are about the same speed as regular load/store on A14
https://twitter.com/Catfish_Man/status/1326238434235568128
https://blog.metaobject.com/2020/11/m1-memory-and-performance.html?m=1
1080p AV1 dav1d 软解，M1 v.s. i9-9980H, by VideoLan
M1 chips are very fast. Full decode of AV1 sample Chimera in 1080p using dav1d:
- i9-9980H: 76/312/369fps
- MacMini M1: 79/354/346fps
(Numbers are SingleThread; 4 Frame Threads with 4 Tiles Threads; and finally 8 Frame Threads with 4 Tiles Threads)
Oh, and the M1 running the x86 code gives 168fps with 4+4 threads. Around half-speed, which is very impressive for emulation.
https://twitter.com/videolan/status/1329403827309715456
PostgreSQL Benchmarks using pgbench-tools
https://info.crunchydata.com/blog/postgresql-benchmarks-apple-arm-m1-macbook-pro-2020
Minecraft running on Apple Silicon without Rosetta2
Got Minecraft running on a MacBook Air running on Apple Silicon without Rosetta, I got MultiMC running with a build of Qt and then built LWJGL and dependencies for arm64. The JDK being used is the Azul Zulu JDK built for macOS arm64.
Performance is unbelievable. I'm getting well over 200fps average on a regular sized windows and ~100fps at 4k on an external display!
The laptop has no fans but doesn't even begin to get hot enough to cause any sort of throttling. Looking forwards to the official Minecraft port as this was mostly straightforward.
https://old.reddit.com/r/Minecraft/comments/jxzilu/minecraft_on_apple_silicon/
React Native M1 support discussion
https://github.com/react-native-community/discussions-and-proposals/issues/295
If you disable SIP, all you iOS apps will stop working on your M1
It‘s only affect iOS apps though
 | 1 coolcatha 2020-11-22 09:44:30 +08:00 via iPhone wow 谢谢分享。很棒很棒 |
 | 2 wyfyw 2020-11-22 09:48:12 +08:00 貌似 A14 只支持了硬解 vp9，没支持 av1，不知道 M1 是不是也是一样。貌似这个软解速度看 4k60Hz av1 没问题。 |
 | 3 lqf96 2020-11-22 09:50:06 +08:00 |
 | 4 konata09 2020-11-22 09:51:30 +08:00 M1 软解 AV1 那么强？！希望有人测一下 libaom 的编码性能 |
| 5 wyfyw 2020-11-22 10:01:09 +08:00 @lqf96 https://www.reddit.com/r/AV1/comments/jrt8u0/it_seems_that_new_apple_m1_mac_chips_support_av1/ 想知道这个 CPU monkey 如何得到支不支持的结论。。。不过 QuickTime 貌似打不开从 Youtube 下载的 AV1，IINA 比较卡 |
 | 6 kevin0201 2020-11-22 11:20:21 +08:00 via iPhone 感谢分享 |
 | 7 Zzzzzzzzzzz 2020-11-22 11:44:44 +08:00 说 m1 依靠专用电路加速，新算法出来后就不行的，脸疼不 |
 | 8 chengluyu 2020-11-22 12:22:24 +08:00  1 不知道楼主有没有发过这个游戏性能测试的集合贴： https://twitter.com/__tosh/status/1329099180476928002 里面有个 Google Sheets 列出了上百种游戏在 M1 芯片上的测试数据。 |
 | 9 longbye0 2020-11-23 01:55:25 +08:00 公版 arm 我记得也有 av1 硬解 |
| 10 longbye0 2020-11-23 02:00:45 +08:00 |
Select Language