Viewing profile — zielmicha

I think this is a really bad idea unless paired with some regime that penalizes inappropiate use of alarms - and most societies don't treat noise pollution as a real problem. For e…

Can you explain this in more detail? It doesn't seem true on a first glance. If you enable compression on ZFS that runs on top of dmcrypt volume, it will naturally happen before en…

SSH is actually really slow on high latency high bandwidth links (this is what HPN-SSH patches fix: https://www.psc.edu/hpn-ssh-home/hpn-ssh-faq ). It's very apparent if you try ru…

(To be clear, I'm not the author of the post, the title just starts with "How I")

> It is impossible for something to be a good investment and affordable. They go against one another. Why do you think that's the case? Many companies are a good investment, while …

Could you have instead changed your code? It's generally best to assume that it's not possible to delete secrets once they are shared (after all, in worst case, the driver could ha…

Is there anything that stops patients from lying that they are in a different state (just temporarily)?

> I couldn't find a single datetime library that has a concept of instances that could be interpreted in different time zones. Jane Street's Core has a good timezone support (the t…

You can also share arbitrary binary data between processes by using shared memory (e.g. Python has support for this in multiprocessing.shared_memory module).

Yes.

ZFS-based RAID-5 (called raidz1) doesn't have write hole. https://blogs.oracle.com/ahl/what-is-raid-z

fsync is still a bit slow on BTRFS (on ZFS too, but to a smaller degree). For example, I just did a quick benchmark on Linux 5.3.0 - installing Emacs on fresh Ubuntu 18.04 chroot (…

PyPy doesn't completely implement Python C API (which anyway is specified only by the CPython implementation, not in any formal manner).

The variables would need to be constrained to be integers/booleans. And Integer Linear Programming is NP-complete.

What's the point of dual PSU if not reliability?

> PyPy is great, but not drop in. Nowadays it works correctly with almost all C modules. Mostly you just need to use `pypy3 -m pip install foo` instead of `python3 -m pip install f…

You don't need fsync if you only care about your user process being killed. It protects only against power loss/kernel crash - the filesystem is not running as user process, so it …

I think it shouldn't be hard to do that automatically in software - you only need to know exchange rates at time of every transaction.

You can imagine you are converting BTC to dollars right before purchase. If you had 1 BTC worth $1000 at the beginning of the year and then 6 months later (when it was worth $1500)…