asyncpg
swc
asyncpg | swc | |
---|---|---|
15 | 139 | |
6,620 | 30,053 | |
1.0% | 0.8% | |
6.8 | 9.9 | |
22 days ago | 1 day ago | |
Python | Rust | |
Apache License 2.0 | Apache License 2.0 |
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.
asyncpg
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Ask HN: Is Python async/await some kind of joke?
- SqlAlchemy/asyncpg => you can’t use it if you’re using PgBouncer (necessary most of the time with Postgres) in transaction mode? What?? https://github.com/MagicStack/asyncpg/issues/1058
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Differences from Psycopg2
OK I stand corrected, asyncpg has these two C files:
https://github.com/MagicStack/asyncpg/blob/master/asyncpg/pr...
https://github.com/MagicStack/asyncpg/blob/master/asyncpg/pr...
If you are interested here is a post by the psycopg author about psycopg2 and 3 and performance versus asyncpg.
https://www.varrazzo.com/blog/2020/05/19/a-trip-into-optimis...
- Asyncpg – A Fast PostgreSQL Database Client Library for Python/Asyncio
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Ruby Outperforms C: Breaking the Catch-22
This pure Python library claims quite fabulous performance: https://github.com/MagicStack/asyncpg
I believe it because that team have done lots of great stuff but I haven't used it, I just remembered thinking it was interesting the performance was so good. Not sure how related it is to running on the asyncio loop (or which loop they used for benchmarks).
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PgBouncer is useful, important, and fraught with peril
what a great post, we have had a ton of issues with users using pgbouncer and it's not because things are "broken" per se, it's just the situation is very complicated, and pgbouncer's docs are also IMO in need of updating to be more detailed and in a few critical cases less misleading, specifically the prepared statements docs.
This blog post refers to this misleading nature at https://jpcamara.com/2023/04/12/pgbouncer-is-useful.html#pre... .
> PgBouncer says it doesn’t support prepared statements in either PREPARE or protocol-level format. What it actually doesn’t support are named prepared statements in any form.
That's also not really accurate. You can use a named prepared statement just fine in transaction mode. start a transaction (so you aren't in autocommit), use a named statement, works fine. you just can't use it again in another transaction, because it will be "gone" (more accurately, "unmoored" - might be in your session, might be in someone else's session). Making things worse, when the prepared statement is "unmoored", its name can then conflict with another client attempting to use the same name.
so to use named prepared statements, you can less ideally name them with random strings to avoid conflicts, or you can DEALLOCATE the prepared statement(s) you used at the end of your transaction. for our users that use asyncpg, we have them use a uuid for prepared statements to avoid these name conflicts (asyncpg added this feature for us here: https://github.com/MagicStack/asyncpg/issues/837). however, they can just as well use DEALLOCATE ALL, set this as their `server_reset_query`, and then so that happens in transaction mode, also set `server_reset_query_always`, so that it's called at the end of transactions. Where pgbouncer here IMO entirely misleadingly documents this as "This setting is for working around broken setups that run applications that use session features over a transaction-pooled PgBouncer." - which is why nobody uses it, because pgbouncer claims this is "broken". It's not any more broken than it is to switch out the PostgreSQL session underneath a connection that uses multiple transactions. Pgbouncer can do better here and make this clearer and more accommodating of real world database drivers.
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Library to connect Python to Postgresql
asyncpg is another great driver if you're using asyncio and want maximum performance (although they also break with DBAPI, but the tradeoff may be worth it).
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aiopg vs asyncpg vs psycopg3
asyncpg: 5.5k starts, last commit recently, ~150 issues, some incompatibility, few open PRs, extensive README. Includes benchmark showing it's supposedly 3x faster than aiopg and psycopg2, psycopg3 is not mentioned in the benchmark.
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Announcing Quart-DB
Quart-DB uses asyncpg to manage the connections and buildpg to parse the named parameter bindings.
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Should I use TimescaleDB or partitioning is enough?
A major performance boost specifically on inserts with timescaledb was actually starting to use https://github.com/MagicStack/asyncpg.
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Cascade of doom: JIT, and how a Postgres update led to 70% failure on a critical national service
Simple query runs long when DB schema contains thousands of tables #186
swc
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Storybook 8 Beta
First, we switched the default compiler for new projects from Babel to SWC (Speedy Web Compiler). SWC is dramatically faster than Babel and requires zero configuration. We’ll continue to support Babel in any project currently using it.
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What is JSDoc and why you may not need typescript for your next project?
SWC
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Implementing auth flow as fast as possible using NestJS
As the reference explains “**SWC** (Speedy Web Compiler) is an extensible Rust-based platform that can be used for both compilation and bundling. Using SWC with Nest CLI is a great and simple way to significantly speed up your development process.”
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Ruby Outperforms C: Breaking the Catch-22
This is specifically about breaking the myth that performing expensive self-contained operations (e.g, parsing GraphQL) in a native extension (C, Rust, etc.) is always faster than the interpreted language.
The JS ecosystem has the same problem, people think rewriting everything in Rust will be a magic fix. In practice, there's always the problem highlighted in the post (transitioning is expensive, causes optimization bailouts), as well as the cost of actually getting the results back into Node-land. This is why SWC abandoned the JS API for writing plugins - constantly bouncing back and forth while traversing AST nodes was even slower than Babel (e.g https://github.com/swc-project/swc/issues/1392#issuecomment-...)
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Building a Minimalist Docker Image with Node, TypeScript
Why Speedy Web Compiler ?
- TypeScript Is Surprisingly OK for Compilers
- Speedy Web Compiler: Rust-Based Platform for the Web
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FTA: Fast TypeScript Analyzer
FTA is a TypeScript static analysis tool built on the speedy foundations of swc. FTA is fast; capable of analyzing more than 150 files per second on typical hardware, it offers a powerful addition to your code quality toolkit.
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Show HN: Ezno, a TypeScript checker written in Rust, is now open source
Very cool! I'm curious, is this intended for dev tooling?
For example, I could see this (or something similar) being useful as the engine for a typescript language server that would be faster than the standard one
But if it's not aimed at 1:1 with tsc, would it be intended more for something like swc[1]?
Or what would you expect people to use this for, besides just being a cool project to learn from?
[1] https://github.com/swc-project/swc
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TypeScript team released an explorer for performance tuning
This is... good news, but I still cannot fathom using the default Typescript compiler for regular development. Seriously, leave the type-checking to your IDE and CICD chain, and switch to using tsx (https://www.npmjs.com/package/tsx) or swc (https://swc.rs/) and you will _immediately_ notice the difference in speed and productivity.
What are some alternatives?
psycopg2 - PostgreSQL database adapter for the Python programming language
esbuild - An extremely fast bundler for the web
aiopg - aiopg is a library for accessing a PostgreSQL database from the asyncio
vite - Next generation frontend tooling. It's fast!
pymssql - Official home for the pymssql source code.
ts-loader - TypeScript loader for webpack
awesome-mysql - A curated list of awesome MySQL software, libraries, tools and resources
tsup - The simplest and fastest way to bundle your TypeScript libraries.
pgbouncer - lightweight connection pooler for PostgreSQL
vitest - Next generation testing framework powered by Vite.
mysql-python - MySQLdb is a Python DB API-2.0 compliant library to interact with MySQL 3.23-5.1 (unofficial mirror)
ts-node - TypeScript execution and REPL for node.js