hatrack
dashmap
| hatrack | dashmap | |
|---|---|---|
| 1 | 12 | |
| 78 | 2,739 | |
| - | - | |
| 4.0 | 5.1 | |
| 4 months ago | 20 days ago | |
| C | Rust | |
| GNU General Public License v3.0 or later | MIT License |
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hatrack
dashmap
- StupidAlloc: what if memory allocation was bad actually
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dashmap VS scalable-concurrent-containers - a user suggested alternative
2 projects | 13 Apr 2023
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Samsara, a safe Rust concurrent cycle collector
The problem is, every single one of these half-dozen crates has at least one known major issue (including UAF), exactly like C++ implementations (which isn't surprising since it's the kind of things where the ownership isn't clear and then the borrow checker can't help us).
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Rust vs Go
Deadlocks and leaks are easy as other languages.
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Shared mutable state is bad... so how do I create a global cache in a multi-threaded app?
Have you considered https://github.com/xacrimon/dashmap ?
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Announcing Leapfrog, a faster concurrent HashMap
Dashmap made some api changes compared to the stdlibs hashmap, which leads to some oddities, as highlighted here: https://github.com/xacrimon/dashmap/issues/175
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Writing a concurrent LRU cache
Some additional notes are in this slide deck and the implementation javadoc. You'd probably want to use something like DashMap for the hash table.
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HashMap-based cache for async programs
You can look at existing concurrent maps like Dashmap https://github.com/xacrimon/dashmap or Cashmap https://gitlab.redox-os.org/redox-os/chashmap
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How does one avoid lock of locks? or use the technique of latch crabbing of databases
Also dashmap
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Noteworthy concurrent data structures?
The only one I've used is Dashmap, it's a concurrent interior-mutability hashmap. Very convenient crate in the case you need that.
What are some alternatives?
Harbol - Harbol is a collection of data structure and miscellaneous libraries, similar in nature to C++'s Boost, STL, and GNOME's GLib but for C99+
hashbrown - Rust port of Google's SwissTable hash map
mlib - Library of generic and type safe containers in pure C language (C99 or C11) for a wide collection of container (comparable to the C++ STL).
moka - A high performance concurrent caching library for Rust
Abstract-Data-Types - A set of efficient data structures in C, created in a generic way
HashMap - An open addressing linear probing hash table, tuned for delete heavy workloads
rc_event_queue - VecDeque-like fast, unbounded, mpmc/spmc concurent FIFO message queue. Lockless reads, write-lock writes.
crossbeam - Tools for concurrent programming in Rust
ctl - My variant of the C Template Library
leapfrog - Lock-free concurrent and single-threaded hash map implementations using Leapfrog probing. Currently the highest performance concurrent HashMap in Rust for certain use cases.
Containers - This library provides various containers. Each container has utility functions to manipulate the data it holds. This is an abstraction as to not have to manually manage and reallocate memory.
megahash - A super-fast C++ hash table with Node.js wrapper, tested up to 1 billion keys.