fio
xNVMe
fio | xNVMe | |
---|---|---|
30 | 3 | |
4,889 | 213 | |
- | 2.8% | |
9.3 | 9.3 | |
4 days ago | 1 day ago | |
C | C | |
GNU General Public License v3.0 only | 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.
fio
- Flexible I/O Tester
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Dire SMB speed with on PC to NAS
Assuming two systems use flash storage, network bandwidth is identical and it is configured the same way, there should be an issue within the PC, either system or storage drive. Check the system logs for errors and warning events related to data transfer from/to NAS. Try to benchmark the PCs' disks using fio to confirm they have similar performance. https://github.com/axboe/fio
- Test Linux I/O
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Ask HN: What are some good resources for learning about low level disk/file IO?
Not specifically addressing your question, but when you get to the point of wanting to start doing some experiments you may find that 'fio' [1] is very handy.
[1] https://github.com/axboe/fio
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KVM virtual machines on ZFS benchmarks
The dd is not a good benchmarking tool, you should use something like fio and probably tune it to use the ioengine most similar to your use case (eg. a database server will probably use some async IO interface). In your first example (with bs=1G) probably something (the guest OS, the qemu/kvm or the host OS) have split into smaller chunks anyway.
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SSD Sequential Write Slowdowns
All linux tests are run with fio 3.32 (github) with future commit 03900b0bf8af625bb43b10f0627b3c5947c3ff79 manually applied.
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Want to develop a GUI wrapper for a CLI tool. Trying to figure out the tools I need.
FIO: https://github.com/axboe/fio
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Just write the f*****g parser.
Agree, I used flex/yacc to add an arithmetic expression evaluator to fio a few years back to allow simple math with some units in fio's job files, and for stuff like that, they're fine, but I wouldn't want to use them for a real language, the error handling is kind of a nightmare.
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Could my SD Card be going bad, or could my Switch be?
Flexible I/O Tester (fio-3.33): https://github.com/axboe/fio
- Newly cloned SSD extremely slow on Linux
xNVMe
- Ask HN: Why are there no open source NVMe-native key value stores in 2023?
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Anyone using io_uring?
Basically io_uring grew a lot, the latest API offers incredible tools but there are very few examples in any language (xnvme and fio), and in particular I'm struggling to understand how to do it in Rust: where should unsafe code stop? should I simply expose the io_uring api as unsafe, or should I do more work in C and present the ring when ready to rust?
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libnvme VS xNVMe - a user suggested alternative
2 projects | 4 Mar 2022
The foundation of xNVMe is libxnvme, a user space library for working with NVMe devices. It provides a C API for memory management, that is, for allocating physical / DMA transferable memory when needed. An NVMe command interface allowing you to submit and complete NVMe commands in a synchronous as well as an asynchronous manner. Similar to libnvme, however, with a focus on I/O performance and portability. Thus, xNVMe and the libxnvme library works not just on Linux, but also on FreeBSD, Windows, and MacOS.
What are some alternatives?
KDiskMark - A simple open-source disk benchmark tool for Linux distros
libnvme - C Library for NVM Express on Linux
iperf - iperf3: A TCP, UDP, and SCTP network bandwidth measurement tool
VkFFT - Vulkan/CUDA/HIP/OpenCL/Level Zero/Metal Fast Fourier Transform library
open-audit - Tracking and reporting for IT and related assets and configuration
FEMU - FEMU: Accurate, Scalable and Extensible NVMe SSD Emulator (FAST'18). Please checkout https://github.com/vtess/FEMU for latest developments.
rio - pure rust io_uring library, built on libc, thread & async friendly, misuse resistant
openSeaChest - Cross platform utilities useful for performing various operations on SATA, SAS, NVMe, and USB storage devices.
act - Aerospike Certification Tool
KVSSD - KV SSD host software including APIs and drivers
glommio - Glommio is a thread-per-core crate that makes writing highly parallel asynchronous applications in a thread-per-core architecture easier for rustaceans.
libuv - Cross-platform asynchronous I/O