c0deR3D

8 ms·

1.
by c0deR3D 11mo ago
Had been using this quite some time ago, it is sad that it has only 1-CPU support, preventing some SMP bugs from emerging. Wonder if it's hard to make it SMP, if too many places use something like #ifdef CONFIG_ARCH_IS_UM to tell wheth
2.
by c0deR3D 2y ago
Same here.
3.
by c0deR3D 2y ago
When would Apple silicons made natively support for OSes such as Linux? Apple seemlingly reluctant to release detailed technical reference manual for M-series SoCs, which makes running Linux natively on Apple silicon challenging.
4.
by c0deR3D 2y ago
Reminds me of User Mode Linux, which AFAIK, runs only on Linux, maybe *nix.
5.
by c0deR3D 2y ago
Nope, mine runs on a native Linux box featuring Intel i7-1370P and 32GB RAM. Maybe Xilinx has some tuning which makes Yocto become slow at parsing the recipe dependency and the likes. I've tried asking the Xilinx community, and got onl
6.
by c0deR3D 2y ago
Your scenario makes me suspecting that it is Xilinx flavored Yocto causing the problem. I think that removing some unused Xilinx-specific layers/recipes can reduce the prologue and epilogue execution time.
7.
Ask HN: Why is Yocto so slow but so popular?
2 points by c0deR3D 2y ago|5 comments
8.
by c0deR3D 2y ago
Got me wondering, how does it works?
9.
Ask HN: Who is using PowerPC in modern computing?
6 points by c0deR3D 2y ago|4 comments
10.
by c0deR3D 2y ago
Out of curious, does BPF now capable of capturing all the context switch events such as CPU trap? Also, if the overhead is negligible, maybe the author can try to merge this into mainline with the use of static key to make the incurred over
11.
by c0deR3D 2y ago
In the near future, people can control appliances with purely their own consciousness, and the only prerequisite is that it requires a minimum consiciousness level, which is reachable for most of the human being. Lastly, we usually think th
12.
by c0deR3D 2y ago
If this is the case, it's weird then. Why releasing CPU for only a glimpse saves battery?
13.
by c0deR3D 2y ago
Sure, I'd try remove the app from the power efficiency restricted app list, which by default are enforced on all apps.
14.
by c0deR3D 2y ago
Yes, I was using Bluetooth headphones at the moment. I don't have the app name at hand, but I know that the app is also a file manager. So there's probably jitter in my headphones, or the app was not suppose to do music playback s
15.
by c0deR3D 2y ago
Nope, mine is a playlist with only 3 local-stored tracks. Yes, I loop these 3 tracks all the time.
16.
Ask HN: Why can't modern smartphones play music smoothly?
19 points by c0deR3D 2y ago|47 comments
17.
by c0deR3D 4y ago
Is it then possible that one can "decorate" the elevator music? At least at a interference level. :p
18.
by c0deR3D 4y ago
If I want to porting it to x86_64, except the register width, what else do I mainly need to take care of? Thanks!
19.
Ask HN: Is there any tool for benchmarking responsiveness for Linux?
100 points by c0deR3D 5y ago|44 comments
20.
by c0deR3D 5y ago
I don't think that the vanilla scheduler would get abandoned, instead, it would then acts as a fallback scheduler when customized userspace scheduler crashed or getting an update and so on.
21.
Ask HN: Why the LKML has only a few comments on sched BPF RFC patch?
1 points by c0deR3D 5y ago|0 comments
22.
by c0deR3D 5y ago
BTW, is there any recommended open source dynamic binary patching tool? Have been using Intel Pin, but fine-grained patches would incur noticeable performance regression permanently. Thanks!
23.
by c0deR3D 7y ago
But comes to C/P value, Intel is totally ruined.
24.
by c0deR3D 7y ago
I'm impressed. This should be awared when programming on embedded system.
25.
by c0deR3D 7y ago
Sometimes, a capacitor's failure also cause invisible damage to other ICs, it's pretty annoying since some ICs can't just use volt-meter to check if it is still functional.
26.
by c0deR3D 8y ago
Why using XX32F103C8T6 instead of its complete model at specification of UART?
27.
by c0deR3D 9y ago
Formal Verification is truly needed especially on this.