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An upside-down backup strategy
An Upside-Down Backup Strategy I have a strange way of doing backups these days. When I save something, the master copy is in the cloud. If a file exists only on my local drive, it's not safe....
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 377 posts.
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FreeBSD on the Graviton 3
As far as FreeBSD is concerned, Graviton 3 is mostly just a faster version of the Graviton 2: Most things "just work", and the things which don't work on Graviton 2 — hotplug devices and cleanly shutting down an instance via the EC2 API — also don't work on Graviton 3. (Want to help get these fixed? Sponsor my work on…
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Apple Silicon is an inconvenient truth
Link to: https://wormsandviruses.com/2022/07/a-burger-without-heinz/
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Frugal Computing (2021)
On the need for low-carbon and sustainable computing and the path towards zero-carbon computing.
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Multi-Kernel Drifting
Using truss, dtrace & ctfconvert to figure out a faulty illumos kernel module.
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Bytecode interpreters for tiny computers (2007)
I've previously come to the conclusion that there's little reason for using bytecode in the modern world, except in order to get more compact code, for which it can be very effective. So, what kind of a bytecode engine will give you more compact code?
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This year in LLVM
Towards the end of last year, I switched from working on PHP at JetBrains, to working on LLVM at Red Hat. While it was already under discussion beforehand, this catalyzed the creation of the PHP foundation , which now pays multiple people to work on PHP. Special thanks for this go to Roman Pronskiy, who did most of…
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Qt signal is ten times slower than a virtual function
I defined a QT Object that contains an integer value and uses QT signal along with awl::Observable based on virtual functions to notify the subscribers when the value changes:
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What is: Linux keyring, gnome-keyring, Secret Service, and D-Bus (2019)
What are Linux keyring, gnome-keyring, Secret Service, and D-Bus - a brief overview and usage examples
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Untangling Lifetimes: The Arena Allocator
Making performant dynamic manual memory management in C feel almost like garbage collection.
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Please Use ZFS with ECC Memory (2014)
In this blogpost I argue why it's strongly recommended to use ZFS with ECC memory when building a NAS. I would argue that if you do not use ECC memory, it's reasonable to also forgo on ZFS altogether and use any (legacy) file system that suits your needs.