bcc
zfs
| bcc | zfs | |
|---|---|---|
| 71 | 721 | |
| 19,499 | 10,161 | |
| 1.2% | 1.0% | |
| 9.2 | 9.7 | |
| 9 days ago | 2 days ago | |
| C | C | |
| Apache License 2.0 | GNU General Public License v3.0 or later |
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.
bcc
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eBPF: Unleashing Kernel Magic for Modern Infrastructure
But wait, there's more! Enter the BCC toolkit and library, your trusty sidekick in simplifying the arcane art of writing eBPF applications. With BCC by your side, you'll be wielding eBPF like a seasoned pro in no time.
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Linux: Easy Keylogger with eBPF (2018)
Nice - I normally use [bash-readline](https://github.com/iovisor/bcc/blob/master/tools/bashreadlin...) when coworking/co-inhabiting a server or training someone.
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eBPF Documentary
One of the big wins is not so much “build and run your own stuff” but there are very nice low-cost (in terms of compute) performance utilities built on eBPF
https://github.com/iovisor/bcc
There are so many utilities in that list; there’s a diagram midway down the readme which tries to help show their uses. bcc-tools should be available in any distro.
Also, Brendan Gregg does a ton of performance stuff that is worth knowing about if you check out his other work. Not eBPF only. Flame graphs are useful.
- Bpftop: Streamlining eBPF performance optimization
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eBPF Tutorial by Example 16: Monitoring Memory Leaks
Reference: https://github.com/iovisor/bcc/blob/master/libbpf-tools/memleak.c
- eBPF Tutorial by Example 9: Capturing Scheduling Latency and Recording as Histogram
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Uprobes Siblings - Capturing HTTPS Traffic: A Rust and eBPF Odyssey
In this article, we'll build a basic version of an HTTPS sniffer, inspired by bcc-sslsniff.py, but we'll use Rust and Aya. We're going to demonstrate the capabilities of uprobes by employing uprobe and uretprobe along with familiar maps like PerCpuArray, HashMap, and PerEventArray. This will be a straightforward example to help us explore how uprobes function.
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Issue XDP_REDIRECT on other interface in the same namespace
As xpd program I am using the BCC example xdp_redirect_map.py in skb mode as my NIC does not support native mode, attaching the program to veth2 and a dummy function to veth3
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Linux runtime security agent powered by eBPF
https://github.com/iovisor/bcc/blob/master/docs/reference_gu...
- eBPF Practical Tutorial: Capturing SSL/TLS Plain Text Data Using uprobe
zfs
- OpenZFS 2.2.4 – Linux and FreeBSD – Advanced file system and volume manager
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Ubuntu 24.04 LTS is so buggy you can't install the OS [video]
Be careful if you use ZFS-on-root, make sure not to snapshot bpool or it will brick your system and require a complete reinstall.
https://github.com/openzfs/zfs/issues/13873
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Radxa's SATA HAT makes compact Pi 5 NAS
> The only non-junk PCIe3 option that's even advertised here recently is the overpriced WD Red SN700.
Those WD drives seem to have some real issues, at least with ZFS and btrfs. :(
https://github.com/openzfs/zfs/discussions/14793
- OpenZFS: Fix corruption caused by MMAP flushing problems
- ZFS: Some copied files are still corrupted (chunks replaced by zeros)
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DiskClick: Ever wanted to hear Old Hard drive sounds
IMO the "next fs" is just zfs. They somewhat recently merged RAIDZ expansion feature https://github.com/openzfs/zfs/pull/12225 and make regular improvements. If no file system has what you need today, zfs will probably be the first one to have it "tomorrow," imo.
- OpenZFS bug reports for native encryption
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A data corruption bug in OpenZFS?
https://github.com/openzfs/zfs/issues/15526#issuecomment-181...
> zpool get all tank | grep bclone
> kc3000 bcloneused 442M
> kc3000 bclonesaved 1.42G
> kc3000 bcloneratio 4.30x
> My understanding is this: If the result is 0 for both bcloneused and bclonesaved then it's safe to say that you don't have silent corruption.
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Ask HN: What's your "it's not stupid if it works" story?
A couple years ago, I had an idea for convincing a filesystem to go faster using 2 compression steps instead of one. I couldn't see why it wouldn't work, and I also couldn't convince myself it should.
It seems to have worked out. [1]
[1] - https://github.com/openzfs/zfs/commit/f375b23c026aec00cc9527...
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ZFS Profiling on Arch Linux
https://github.com/openzfs/zfs/issues/7631
This is a long-standing issue with zvols which affects overall system stability, and has no real solution as of yet.
What are some alternatives?
libbpf - Automated upstream mirror for libbpf stand-alone build.
zstd - Zstandard - Fast real-time compression algorithm
bpftrace - High-level tracing language for Linux eBPF [Moved to: https://github.com/bpftrace/bpftrace]
7-Zip-zstd - 7-Zip with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard
ebpf-for-windows - eBPF implementation that runs on top of Windows
sanoid - These are policy-driven snapshot management and replication tools which use OpenZFS for underlying next-gen storage. (Btrfs support plans are shelved unless and until btrfs becomes reliable.)
linux - Linux kernel source tree
RocksDB - A library that provides an embeddable, persistent key-value store for fast storage.
nokogiri-rust - Ruby FFI wrapper around scraper crate to be used instead of Nokogiri. Status: proof of concept.
snapper - Manage filesystem snapshots and allow undo of system modifications
libbpf-bootstrap - Scaffolding for BPF application development with libbpf and BPF CO-RE
zfsbootmenu - ZFS Bootloader for root-on-ZFS systems with support for snapshots and native full disk encryption