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Parking_lot Alternatives
Similar projects and alternatives to parking_lot
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WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
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NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better parking_lot alternative or higher similarity.
parking_lot reviews and mentions
Posts with mentions or reviews of parking_lot.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-07-27.
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How fair should an unfair mutex be?
Recently I've been developing my own mutex using a lot of inspiration from the excellent parking_lot crate. The mutex in parking_lot is eventually fair in that it occasionally does a fair unlock to ensure threads aren't completely starved.
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Which Mutex to use in this case (independent tasks, partially under contention)
parking_lot still has an open issue #201: Heavily degraded performance while in extreme contention on some processors which reveals that parking_lot selfishly uses spinning locks under some circumstances to sacriice total system efficiency in the name of trying to improve its own latency. In my opinion, the only place spinning locks are excusable is fullscreen games and, even then, Linus Torvalds is of the opinion they're usually implemented wrong. (Issue 201 also includes a bunch of benchmark runs if you want to read through to figure out which one applies to the current shipping state of the codebase.)
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Why Rust mutexes look like they do
I think there was at some point the plan to make it the std implementation. However, cross platform support was kinda tricky if I remember link to an issue. I tend to suggest to always first prototype with std primitives. Often your bottlenecks are in totally different places. For example, you wait on some data C that also waits on data B but this depends on A which is a really slow query to a database.
- How to call RawRwLock.lock_exclusive() of parking_lot?
- Parking_lot: Compact and efficient synchronization primitives for Rust
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A Firehose of Rust, for busy people who know some C++
I think the current state-of-the-art in terms of high-performance, general-purpose mutexes is parking_lot. (Which was ported from a C++ project of the same name.) Rather than initializing a new underlying pthread_mutex for every instance of Mutex, it keeps a global collection of thread parking queues somewhere, which turns out to be more efficient in various ways. An individual parking_lot::Mutex doesn't require a heap allocation, and is just 1 byte in size (plus the size of T).
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Eliminating Data Races in C++ and Rust with Thread Sanitizer in Firefox – A Technical Report
The first was bug 1674770, which was a bug in the parking_lot library. This Rust library provides synchronization primitives and other concurrency tools and is written and maintained by experts. We did not investigate the impact but the issue was a couple atomic orderings being too weak and was fixed quickly by the authors. This is yet another example that proves how difficult it is to write bug-free concurrent code.
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A note from our sponsor - InfluxDB
www.influxdata.com | 28 Apr 2024
Stats
Basic parking_lot repo stats
7
2,532
7.2
3 days ago
Amanieu/parking_lot is an open source project licensed under Apache License 2.0 which is an OSI approved license.
The primary programming language of parking_lot is Rust.
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