runj
pyroscope
runj | pyroscope | |
---|---|---|
24 | 56 | |
585 | 7,382 | |
- | - | |
5.9 | 9.6 | |
about 2 months ago | about 1 year ago | |
Go | Go | |
GNU General Public License v3.0 or later | GNU Affero General Public License v3.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
runj
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HelloSystem: A graphical OS built on FreeBSD
a couple projects underway for containers, still wip but promising.
https://hackmd.io/7BIT_khIRQyPAe4EdiigHg
https://github.com/samuelkarp/runj
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FreeBSD Experimenting with a Port of Nvidia's Linux Open DRM Kernel Driver
> it's a shame that docker is built around linux
There is some interesting work happening to get an OCI-compatible runtime working
https://github.com/samuelkarp/runj
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What is the current status of Docker and how far is it from getting ported?
So somebody else created runj (runj is an experimental, proof-of-concept OCI-compatible runtime for FreeBSD jails.) https://github.com/samuelkarp/runj
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FreeBSD Jails Containers
Shout out to https://github.com/samuelkarp/runj which aims to provide OCI compatible runtime for FreeBSD jails. We are working on a Jails based sandbox implementation for running OCaml builds on FreeBSD, https://github.com/ocurrent/obuilder. If runj gets more support then it would be a good alternative to the various iocage/ezjail/etc solutions or the raw Jails implementation we have right now.
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Just brings a smile
If you want to get a little more bleeding edge, follow along with samuelkarp/runj project which attempts to get docker images running via runj/containerd
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Docker on OpenBSD?
containerd only runs on FreeBSD with the help of a shim to use [runj](https://github.com/samuelkarp/runj) as a backend for running the actual jails containers.
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Fun with FreeBSD: Your First Linux Guest – Running in Production with Scissors
> VM's disk is a zfs filesystem on the host, it makes snapshotting (edit- ok maybe not, see below) and managing it super easy!
I think you mean that it's a ZFS volume? Although it should be possible to export a filesystem to a guest over NFS (or I guess 9p), but I haven't run into a lot of discussion or gotten around to testing it myself...
> It would be really cool if there were tools that brought them in line with docker, in terms of easy deployment and provisioning of new jails/vms. If I didn't have so many damn project ideas already...
My dream would be to see https://github.com/samuelkarp/runj polished and docker+containerd+runj made to work as the way to run the docker frontend with jails as the backend.
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Friday question: hostings & clouds dropping FreeBSD more and more
https://github.com/samuelkarp/runj is a proof of concept.
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"We don't need docker we have jails" doesn't scale to a team of developers
Pull up your sleeves and start committing
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Hetzner has silently dropped support for FreeBSD
Experimental FreeBSD on FreeBSD OCI containers with runj
pyroscope
- Grafana Phlare, open source database for continuous profiling at scale
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The pros and cons of eBPF profiling in K8s
What do you mean? pyroscope.io was slow for you? or the blog?
- Go garbage collector doesn't release memory
- Pyroscope - Continuous profiling platform
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Ask HN: What are some 'cool' but obscure data structures you know about?
Tries (or prefix trees).
We use them a lot at Pyroscope for compressing strings that have common prefixes. They are also used in databases (e.g indexes in Mongo) or file formats (e.g debug symbols in macOS/iOS Mach-O format are compressed using tries).
We have an article with some animations that go into details about tries in case anyone's interested [0].
[0] https://github.com/pyroscope-io/pyroscope/blob/main/docs/sto...
- How to add dynamic tags/labels to Java profiles (example)
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Question: How do you handle oversized heap analysis?
You could use continuous profiling with Pyroscope which uses async-profiler under the hood, but with the added functionality that you can add relevant tags to your VMs (example).
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JFR (Java Flight Recorder) Parser written in Go
Java Flight Recorder (JFR) is a format for collecting diagnostic and profiling data from Java applications. A while back someone created an issue for Pyroscope , an open source continuous profiler written in Go, to support ingesting profiles in JFR format, but there were no existing parsers that were also written in Go.
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flamegraph.com - a new website for uploading, analyzing, and sharing pprof profiles
This cloud version is actually a slimmed-down version of Pyroscope which is open source and so you can run it locally.
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We created flamegraph.com - A website for uploading, analyzing, and sharing flamegraphs
At Pyroscope (open source continuous profiling) we use flamegraphs extensively to visualize and analyze profiling data. However, one of the worst parts about using flamegraphs for analysis is that they are kind of annoying to share.
What are some alternatives?
uptime-kuma - A fancy self-hosted monitoring tool
parca - Continuous profiling for analysis of CPU and memory usage, down to the line number and throughout time. Saving infrastructure cost, improving performance, and increasing reliability.
bastille - Bastille is an open-source system for automating deployment and management of containerized applications on FreeBSD.
profefe - Continuous profiling for long-term postmortem analysis
s6-overlay - s6 overlay for containers (includes execline, s6-linux-utils & a custom init)
barrier - Open-source KVM software
vm-bhyve - Shell based, minimal dependency bhyve manager
Grafana - The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
boot2docker - DEPRECATED; see https://github.com/boot2docker/boot2docker/pull/1408
SheetJS js-xlsx - 📗 SheetJS Spreadsheet Data Toolkit -- New home https://git.sheetjs.com/SheetJS/sheetjs
hyperkit - A toolkit for embedding hypervisor capabilities in your application
Oat++ - 🌱Light and powerful C++ web framework for highly scalable and resource-efficient web application. It's zero-dependency and easy-portable.