heappy
goawk
heappy | goawk | |
---|---|---|
2 | 19 | |
22 | 1,895 | |
- | - | |
8.5 | 7.2 | |
3 days ago | 10 days ago | |
Rust | Go | |
Apache License 2.0 | MIT License |
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.
heappy
-
Why Not Rust?
> But, for example, some runtime-related tools (most notably, heap profiling) are just absent — it’s hard to reflect on the runtime of the program if there’s no runtime!
Yeah; I felt that pain too.
I tried to write something to address some parts of the missing space. It's still in the early stages but you may be interested:
https://github.com/mkmik/heappy
-
Go 1.17 Is Released
I hate to be "that guy" too, but coming from somebody who really likes Rust and is using it more and more (also at $dayjob now) we must admit that Go tooling is one step ahead. CPU profiler, allocation and heap profiler, lock contention profiler. It all comes out of the box.
Yes you have cargo flamegraph for profiling locally and you now have pprof-rs to mimick Go's embedded pprof support. But allocation heap profiling is still something I struggle with.
I saw there was a pprof-rs PR with a heap profiler but there was some doubt as to whether it worked correctly; to get a feeling of how that approach would work but without having to fork pprof-rs I implemented the https://github.com/mkmik/heappy crate which I can use to produce memory allocation flamegraphs (using the same "go tool pprof" tooling!) in real code I run and figure out if it works in practice before pushing it upstream.
But stuff you give for granted like figuring out which structure accounts for most used memory, is very hard to achieve. The servo project uses an internal macro that help you trace the object sizes but it's hard to use outside the servo project.
The GC makes some things very easy, and it's not just about programmers not having to care about memory; it's also that the same reference tracing mechanism used to implement GC can be used to cheaply get profiling information.
goawk
- GoAWK, an Awk interpreter written in Go (2018)
-
The Awk Programming Language, Second Edition
TIL: GoAWK [1] - A POSIX-compliant AWK interpreter written in Go, with CSV support.
[1]: https://github.com/benhoyt/goawk
- Looking for a script for csv file
-
Anyone else doing compiler work in Golang?
Another nice project that I have used from time to time (and a very good source for insight) is the awk interpreter written in go https://github.com/benhoyt/goawk
-
Tool to interact with CSV
No, I want exactly the opposite - it should be a , b,c as a single string field containing a literal comma, and c. For example, https://github.com/benhoyt/goawk has csv support. https://github.com/benhoyt/goawk/blob/master/docs/csv.md - more info.
-
Why does awk parse '1&&x=1' as '1&&(x=1)' not '(1&&x)=1' when '&&' is high precedence than '='?
I've had a go at solving this in this PR -- feedback welcome. I don't love it, but oh well, it solves the problem at hand. Your comment pointed me in the right direction, thanks again.
-
Looking for programming languages created with Go
There are quite a few re-implementations of scripting languages like Lua in Go. I've written an AWK interpreter in Go.
-
Oracle DB support in Benthos
github.com/benhoyt/goawk -> this library lets you embed an AWK runtime in your applications, very easy to use and useful for enabling some powerful scripting in things you build
-
Brian Kernighan adds Unicode support to Awk (May, 2022)
Yes, that's right. With my simplistic UTF-8-based implementation it turned length() -- for example -- from O(1) to O(N), turning O(N) algorithms which use length() into O(N^2). See this issue: https://github.com/benhoyt/goawk/issues/93
Similar with substr() and other string functions, which when operating as bytes are O(1), but become O(N) when trying to count the number of codepoints as UTF-8.
GNU Gawk has a fancier approach, which stores strings as UTF-8 as long as it can, but converts to UTF-32 if it needs to (eg: the string is non-ASCII and you call substr).
It looks like Brian Kernighan's code has the same issue with length() and substr(). I'm going to try to email him about this, as I think it's kind of a performance blocker.
-
Ask HN: Is having a Personal blog/brand worth it for you?
I'm not sure if it was via my personal website or just my GitHub profile, but I got my current job at Canonical due to the CTO there reaching out about my GoAWK project (https://github.com/benhoyt/goawk). I get regular recruitment emails because I have my CV/resume online: most of them are very low-effort, but 1 in 20 or something are interesting emails where the recruiter has actually looked at my website and will tailor it personally. I also just enjoy technical writing, and get joy out of sharing it on HN. So it's "worth it" for me.
What are some alternatives?
bytehound - A memory profiler for Linux.
textot.rs - Text operational transform library, for rust. Compatible with libot, ottypes/text.
tsv-utils - eBay's TSV Utilities: Command line tools for large, tabular data files. Filtering, statistics, sampling, joins and more.
memory-profiler - A memory profiler for Linux. [Moved to: https://github.com/koute/bytehound]
awka - Revive awka - Awk to C Compiler
intellij-awk - The missing IntelliJ IDEA language support plugin for AWK
tumblelog - A static tumblelog generator available as both a Perl and Python version
awk - One true awk
bashcc - C compiler written in Bash script
tectonic - A modernized, complete, self-contained TeX/LaTeX engine, powered by XeTeX and TeXLive.
nio - Low Overhead Numerical/Native IO library & tools