automerge-perf
statebox_riak
| automerge-perf | statebox_riak | |
|---|---|---|
| 2 | 1 | |
| 35 | 48 | |
| - | - | |
| 3.2 | 10.0 | |
| 7 months ago | over 10 years ago | |
| JavaScript | Erlang | |
| - | GNU General Public License v3.0 or later |
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automerge-perf
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Announcing crop, the fastest UTF-8 text rope for Rust
The automerge folks have a real-life editing history of a large document in their benchmarks: https://github.com/automerge/automerge-perf
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You might not need a CRDT
This is an implementation problem with automerge. I wrote a blog post last year about CRDT performance. I re-ran the benchmarks a couple months ago. Automerge has improved a lot since then, but a simple benchmark test (automerge-perf[1]) still takes 200MB of RAM using automerge-rs. Yjs and Diamond types can run the same benchmark in 4mb / 2mb of ram respectively.
I've had a chat with some of the automerge people about it. They're working on it, and I've shared the techniques I'm using in diamond types (and all the code). Its just an implementation bottleneck.
[1] https://github.com/automerge/automerge-perf/
statebox_riak
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You might not need a CRDT
This is a cool approach. It reminds me of statebox by mochimedia: https://github.com/mochi/statebox_riak.
If I'm understanding correctly, it requires the mutations to be deterministic in order for the nodes to converge.
Replicache (replicache.dev - my thing) takes a similar approach except it does not requires the mutations to be deterministic, which is very useful because it enables, e.g., authenticated operations on the server.
Both the idea here and Replicache's approach are closely related to game networking. If you are interested in these ideas, a really excellent set of content is: https://www.gabrielgambetta.com/client-server-game-architect....
What are some alternatives?
jumprope-rs
plane - A distributed system for running WebSocket services at scale.
pigeon - Diff, patch, merge, and synchronize JSON documents with an Automerge-compatible interface
peritext - A CRDT for asynchronous rich-text collaboration, where authors can work independently and then merge their changes.
crop - 🌾 A pretty fast text rope
aper - A Rust data structure library built on state machines.
diamond-types - The world's fastest CRDT. WIP.
jdd - A semantic JSON compare tool