valhalla
Apache Cassandra
valhalla | Apache Cassandra | |
---|---|---|
8 | 36 | |
498 | 8,562 | |
1.6% | 0.6% | |
9.9 | 9.9 | |
about 1 hour ago | 3 days ago | |
Java | Java | |
GNU General Public License v3.0 only | 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.
valhalla
-
Overhead of Returning Optional Values in Java and Rust
I reran the benchmarks with the latest Valhalla branch [1] and added a test that used OptionalLong instead of Optional.
Without Valhalla
OptionBenchmark.sumSimple avgt 5 328,110 us/op
OptionBenchmark.sumNulls avgt 5 570,800 us/op
OptionBenchmark.sumOptional avgt 5 2223,887 us/op
OptionBenchmark.sumOptionalLong avgt 5 1201,987 us/op
With Valhalla
OptionBenchmark.sumSimpleValhalla avgt 5 327,927 us/op
OptionBenchmark.sumNullsValhalla avgt 5 584,967 us/op
OptionBenchmark.sumOptionalLongValhalla avgt 5 326,949 us/op
OptionBenchmark.sumOptionalValhalla avgt 5 572,833 us/op
OptionalLong is now as fast as the simple sum. And SumOptional is now identical so SumNulls
[1] https://github.com/openjdk/valhalla
-
Vector classes are getting closer to becoming Value Types
The first branch representing vectors as Value Types has just landed!
-
How does rust use such little memory compared to java?
Seems to have only started in earnest earlier this year, but, there is code... https://github.com/openjdk/valhalla
-
Valhalla: Consolidating the user model [Brian Goetz]
The repo is quite active! I think that they just don't have anything really worth showing yet.
-
Java Virtual Machine Garbage Collection and Its Performance Impact
Repo: https://github.com/openjdk/valhalla
-
What are they building—and why? 6 questions for the top Java architects
Valhalla is still active https://github.com/openjdk/valhalla and you can build it yourself
- Any updates on project vallah?
-
Parametric JVM (PDF): how generic specialization will be implemented (draft v0.3, highly technical, by John Rose)
Vicente Romero has a first prototype of the javac part: https://github.com/openjdk/valhalla/pull/364
Apache Cassandra
-
System Design: Databases and DBMS
Apache Cassandra
-
How to Choose the Right MQTT Data Storage for Your Next Project
Apache Cassandra{:target="_blank"} is a highly scalable and fault-tolerant database that can handle large volumes of data across multiple nodes or clusters. It provides fast read and write operations, making it suitable for real-time analytics or applications with high throughput requirements.
- 10+ Open-Source Projects For Web Developers In 2023
-
Database 101: Data Consistency for Beginners
Wide Column: Apache Cassandra, ScyllaDB and DynamoDB
-
In One Minute : Hadoop
Cassandra, a replicated, fault-tolerant, decentralized and scalable database system.
-
Build Your First App with JavaScript, Node.js, and DataStax Astra DB
A popular database you might already be familiar with is Apache Cassandra®, which powers high-performing applications for thousands of companies including Hulu, Netflix, Spotify, and Apple. While this free, open-source database is known for its high availability, scalability, and resilience; the downside is that it’s also notoriously complex to set up and manage.
- Reducing logging cost by two orders of magnitude using CLP
-
Baeldung Series Part 2: Build a Dashboard With Cassandra, Astra and CQL – Mapping Event Data
In our previous article, we looked at augmenting our dashboard to store and display individual events from the Avengers using DataStax Astra, a serverless DBaaS powered by Apache Cassandra using Stargate to offer additional APIs for working with it.
-
System Design: CAP theorem
Example: Apache Cassandra, CouchDB.
-
Deploy a TikTok Clone with Node.js, Netlify, and DataStax Astra DB
For our TikTok database, we’re using DataStax Astra DB: a cloud-based database that fully manages Apache Cassandra®, one of the most robust and scalable NoSQL databases around.
What are some alternatives?
.NET Runtime - .NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
Druid - Apache Druid: a high performance real-time analytics database.
Scylla - NoSQL data store using the seastar framework, compatible with Apache Cassandra
LevelDB - LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.
delta - An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs
Apache HBase - Apache HBase
Event Store - EventStoreDB, the event-native database. Designed for Event Sourcing, Event-Driven, and Microservices architectures
CouchDB - Seamless multi-master syncing database with an intuitive HTTP/JSON API, designed for reliability
RethinkDB - The open-source database for the realtime web.
OpenTSDB - A scalable, distributed Time Series Database.
PostgreSQL - Mirror of the official PostgreSQL GIT repository. Note that this is just a *mirror* - we don't work with pull requests on github. To contribute, please see https://wiki.postgresql.org/wiki/Submitting_a_Patch