rhizome
Presto
| rhizome | Presto | |
|---|---|---|
| 8 | 14 | |
| 814 | 15,603 | |
| - | 0.4% | |
| 1.8 | 9.9 | |
| almost 3 years ago | about 8 hours ago | |
| Ruby | Java | |
| MIT License | Apache License 2.0 |
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rhizome
- How do optimizing compilers convert variables into registers
- YJIT: Building a New JIT Compiler for CRuby
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Tenderjit – A JIT for Ruby Written in Ruby
There was actually an existing, similar in concept, Ruby JIT, Rhyzome: https://github.com/chrisseaton/rhizome.
It's good to see (IMO) the development of a JIT in a strict sense. I'm personally skeptical about the current approach (invoking a compiler separately).
On the other hand, it's important to know that JITs may take a long development time to be performant, and that they also complicate the performance profile of a virtual machine.
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Let's write a compiler, part 5: A code generator
Lots of compiler tutorials are like this - there's very little out there to explain how compilers really work.
This is my effort - trying to show genuine data structures and processes.
https://github.com/chrisseaton/rhizome
- Thoughts about Intermediate representations
- A JIT for Ruby, implemented in pure Ruby (/r/ruby)
- Rhizome – a JIT for Ruby, implemented in pure Ruby
Presto
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Multi-Database Support in DuckDB
We have some of this functionality in Presto (https://github.com/prestodb/presto), but it takes fair bit of work to implement it for all the different backends.
-
Rust std:fs slower than Python
Note that glibc has a similar problem in multithreaded contexts. It strands unused memory in thread-local pools, which grows your memory usage over time like a memory leak. We got lower memory usage that didn't grow over time by switching to jemalloc.
Example of this: https://github.com/prestodb/presto/issues/8993
- Ask HN: What are some SQL transpilers?
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Cheat sheet for quotes usage?
I look at the grammar. Here is preto's grammar which is mostly similar to other sql engines: https://github.com/prestodb/presto/blob/master/presto-parser/src/main/antlr4/com/facebook/presto/sql/parser/SqlBase.g4
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After a few recent events, opening a Linux terminal in public places is a big no-no
export MVNW_VERBOSE=true git clone https://github.com/prestodb/presto.git cd presto bash ./mvnw clean install
- presto: The official home of the Presto distributed SQL query engine for big data
- Compile the Minecraft Server (Java Edition) to Native with GraalVM Native Image
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What are y'all learning right now?
more specifically, recently started learning about Presto [paper], and have been diving deeper into [source] code.
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DeWitt Clause, or Can You Benchmark %DATABASE% and Get Away With It
Presto
- Let's write a compiler, part 5: A code generator
What are some alternatives?
yjit - Optimizing JIT compiler built inside CRuby
Trino - Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
sqlite-parser - JavaScript implentation of SQLite 3 query parser
Apache Phoenix - Apache Phoenix
grammars-v4 - Grammars written for ANTLR v4; expectation that the grammars are free of actions.
Apache Calcite - Apache Calcite
zetasql - ZetaSQL - Analyzer Framework for SQL
HikariCP - 光 HikariCP・A solid, high-performance, JDBC connection pool at last.
swifties - a custom language construction kit
jOOQ - jOOQ is the best way to write SQL in Java
langjam
Spring Data JPA - Simplifies the development of creating a JPA-based data access layer.