parsec | fio | |
---|---|---|
12 | 30 | |
831 | 4,889 | |
-0.1% | - | |
4.7 | 9.3 | |
about 1 month ago | 7 days ago | |
Haskell | C | |
BSD 2-clause "Simplified" License | GNU General Public License v3.0 only |
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.
parsec
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Revisiting Haskell after 10 years
Writing Haskell programs that rely on third-party packages is still an issue when it’s a not actively maintained package. They get out of date with the base library (Haskell’s standard library), and you might see yourself in a situation where you need to downgrade to an older version. This is not exclusive to Haskell, but it happens more often than I’d like to assume. However, if you only rely on known well-maintained libraries/frameworks such as Aeson, Squeleto, Yesod, and Parsec, to name a few, it’s unlikely you will face troubles at all, you just need to be more mindful of what you add as a dependency. There’s stackage.org now, a repository that works with Stack, providing a set of packages that are proven to work well together and help us to have reproducible builds in a more manageable way—not the solution for all the cases but it’s good to have it as an option.
- Show HN: I wrote a RDBMS (SQLite clone) from scratch in pure Python
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Just write the f*****g parser.
The Parsec library for Haskell uses combinators, and there are a few good resources around the internet which explore it, if you know Haskell.
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Summing polynomials in Haskell
Parse the expression using parsec library ( if you're unfamiliar with it please check out https://hackage.haskell.org/package/parsec) it's a strong library for parer combinators. Once you parse the expression u need to define and sum up the similar terms. Check this example out - https://fpunfold.com/2020/05/18/making-a-calculator-in-haskell-with-parsec.html
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Konbini: a new multiplatform parser library
Konbini is a functional parser combinator library inspired by Haskell parsing libraries like Parsec. It's (hopefully) fairly easy to use, and is about as performant as the better-parse library. In fact, it's quite similar to better-parse in many aspects. The main difference is in how parsers are composed. Where better-parse prefers operators and infix functions, Konbini instead uses plain functions.
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Traverse/mapM for Computation Expressions
Hi everyone, I'm learning F# and currently trying to do a Parsec-like CE, just to get comfortable with computation expressions.
- Is there good introduction to the parsec library for newbies?
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On a daily base in this sub
good libraries for parsing: parsec, attoparsec etc.
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Unity to acquire Parsec for $320m
Thank you! When I read the title I only knew about https://hackage.haskell.org/package/parsec, and for a moment I was very confused…
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Splitting html tags string into list of string
The more "idiomatic" way would be to use a parser library, e.g. parsec, attoparsec, or megaparsec. But even then I think it would be a lot easier to maintain if you could preserve the angle brackets <> in the input.
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
What are some alternatives?
rustdesk - An open-source remote desktop, and alternative to TeamViewer.
KDiskMark - A simple open-source disk benchmark tool for Linux distros
Sunshine - Self-hosted game stream host for Moonlight.
iperf - iperf3: A TCP, UDP, and SCTP network bandwidth measurement tool
megaparsec - Industrial-strength monadic parser combinator library
open-audit - Tracking and reporting for IT and related assets and configuration
sunshine - Host for Moonlight Streaming Client
rio - pure rust io_uring library, built on libc, thread & async friendly, misuse resistant
attoparsec - A fast Haskell library for parsing ByteStrings
xNVMe - Portable and high-performance libraries and tools for NVMe devices as well as support for traditional/legacy storage devices/interfaces.
parsec-parsers - Orphan instances so you can use `parsers` with `parsec`.
act - Aerospike Certification Tool