agilob 3w ago • 100%
To be clear, I don't blame the poster of this comment at all for the content of their post – this is accepted as "common knowledge" by a lot of Linux sysadmins and is probably one of the most likely things that you will hear from one if you ask them to talk about swap. It is unfortunately also, however, a misunderstanding of the purpose and use of swap, especially on modern systems.
agilob 4mo ago • 83%
I'm not sure if you understand what swap actually is, because even machines with 1Tb of RAM have swap partitions, just in case read this post from a developer working on swap module in Linux https://chrisdown.name/2018/01/02/in-defence-of-swap.html
This document presents new time-based UUID formats which are suited for use as a database key.
This specification defines the UUIDs (Universally Unique IDentifiers) and the UUID Uniform Resource Name (URN) namespace. UUIDs are also known as GUIDs (Globally Unique IDentifiers). A UUID is 128 bits long and is intended to guarantee uniqueness across space and time. UUIDs were originally used in the Apollo Network Computing System and later in the Open Software Foundation's (OSF) Distributed Computing Environment (DCE), and then in Microsoft Windows platforms.
agilob 4mo ago • 50%
The Linux kernel uses the CPU default scheduler, CFS,
Linux 6.6 (which recently landed on Debian) changed the scheduled to EEVDF, which is pretty widely criticized for poor tuning. 100% busy which means the scheduler is doing good job. If the CPU was idle and compilation was slow, than we would look into task scheduling and scheduling of blocking operations.
agilob 4mo ago • 66%
EDIT: Tried nice -n +19, still lags my other programs.
yea, this is wrong way of doing things. You should have better results with CPU-pinning. Increasing priority for YOUR threads that interact all the time with disk io, memory caches and display IO is the wrong end of the stick. You still need to display compilation progress, warnings, access IO.
There's no way of knowing why your system is so slow without profiling it first. Taking any advice from here or elsewhere without telling us first what your machine is doing is missing the point. You need to find out what the problem is and report it at the source.
agilob 4mo ago • 50%
The CPU is already 100% busy, so changing number of compilation jobs won't help, CPU can't go faster than 100%.
agilob 4mo ago • 50%
Yeah this survey is super inappropriate and offensive. Please do not ask such personal questions.
Did you notice that more inappropriate questions appear and disappear based on your previous answers?
ULL trading firms go to a lot of trouble to get their servers and switches within the same buildings as the exchanges they trade with to reduce latency. Some firms don’t even use layer 1 switches to be competitive.
agilob 7mo ago • 82%
Old issue, so why post it now make it sound like MS demands something?
Opened 11 months ago Last modified 11 months ago
It's a regression, so ffmpeg should fix a regression.
agilob 7mo ago • 100%
agilob 7mo ago • 100%
I completely missed that user namespaces were added in 1.25. It will make homelabs much easier and safer with little effort.
Support user namespaces in pods (KEP-127)
User namespaces is a Linux-only feature that better isolates pods to prevent or mitigate several CVEs rated high/critical, including CVE-2024-21626, published in January 2024. In Kubernetes 1.30, support for user namespaces is migrating to beta and now supports pods with and without volumes, custom UID/GID ranges, and more!
https://kubernetes.io/docs/concepts/workloads/pods/user-namespaces/
agilob 8mo ago • 100%
After doing it for 15 years, I must be good at it and everything should be easy.
hidethepainharold.jpg
agilob 9mo ago • 100%
So while I'm myself struggling to fully understand what this is, it conceptually like it's a blockchain on syncthing, where even if you subscribe to a read only share, you can locally delete what you don't want to keep. So technically you could make bitorrent to behave like syncthing with search function for contacts you already know.
agilob 11mo ago • 100%
agilob 11mo ago • 50%
Big O notation is useless for smaller sets of data. Sometimes it’s worse than useless, it’s misguiding.
I don't agree that it's useless or misguiding. The smaller dataset, the less important it is, but it makes massive difference how the rest of the algorithm will be working and changing context around it.
Let's say that you need to sort 64 ints, in a code that starts our operating system. You need to sort it once per boot, and you boot less frequently than once per day, in fact you know instances of the OS that have 14 years of uptime, so it doesn't matter at all right? Welp. Now your OS is used by a big cloud provider and they use that code to boot the kernel 13 billions times per day. The context changed, time passed by, your silly bubble sort that doesn't matter on small numbers is still there.
agilob 11mo ago • 40%
Heres the blog post about the change dated in June this year
Half year too late for that outrage anyway :)