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Streaming data changes, one at a time.
Software engineer @ Decodable · Ex-lead of Debezium · Spec lead of Bean Validation 2.0 · Creator of JfrUnit, kcctl and MapStruct · Java Champion · 🚴
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awesome-opensource-data-engineering
awesome-opensource-data-engineering PublicAn Awesome List of Open-Source Data Engineering Projects
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awesome-annotation-processing
awesome-annotation-processing PublicA curated list of resources related to the Java annotation processing API (JSR 269)
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jfr-custom-events
jfr-custom-events PublicDemo of Java Flight Recorder custom events and event streaming
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jdkapidiff
jdkapidiff PublicNOTE: This project has been migrated to https://github.com/AdoptOpenJDK/jdk-api-diff
733 contributions in the last year
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Contribution activity
January 2024
Created 93 commits in 2 repositories
Reviewed 30 pull requests in 2 repositories
gunnarmorling/1brc
25 pull requests
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isolgpus: submission 2 - about a 25% improvement on submission 1.
This contribution was made on Jan 7
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Initial solution by raipc
This contribution was made on Jan 7
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Adding Unsafe and merykitty's branchless parser
This contribution was made on Jan 7
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ivanocj's first attempt
This contribution was made on Jan 6
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my small contirbution (in particular the dont dos ;))
This contribution was made on Jan 6
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Calculate Average by Arjen van Eerde 9.6 sec
This contribution was made on Jan 6
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Initial implementation
This contribution was made on Jan 6
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my first try to 1BRC!
This contribution was made on Jan 6
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Add solution by flippingbits - Use SIMD for computing aggregates
This contribution was made on Jan 6
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Adding kgeri's solution
This contribution was made on Jan 6
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Stream-less? Implementation
This contribution was made on Jan 6
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merykitty's attempt
This contribution was made on Jan 6
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Attempt at the challenge :)
This contribution was made on Jan 6
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Less magic implementation
This contribution was made on Jan 6
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Initial version for thomaswue with Oracle GraalVM Native Image
This contribution was made on Jan 6
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armandino: second submission
This contribution was made on Jan 6
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rby: Has some interesting optimisations but could be improved further with a custom hash map
This contribution was made on Jan 5
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#122 add pull request template
This contribution was made on Jan 5
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A solution with Actor Model concurrency and MappedByteBuffer
This contribution was made on Jan 5
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Improved artsiomkorzun solution
This contribution was made on Jan 5
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#104 Run tests for the user creating the PR
This contribution was made on Jan 5
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More optimizations for ebarlas submission
This contribution was made on Jan 5
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test: add sample with 10k unique keys
This contribution was made on Jan 4
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Mudit/initial attempt
This contribution was made on Jan 4
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Use proper hash key collision detection scheme.
This contribution was made on Jan 4
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gunnarmorling/awesome-opensource-data-engineering
1 pull request
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Update README.adoc
This contribution was made on Jan 2
Created an issue in gunnarmorling/1brc that received 6 comments
Add PR template
It should primarly say that one should run (and pass) the test suite and commit any changes from the formatter.
6
comments
Opened 9 other issues in 1 repository
gunnarmorling/1brc
3
open
6
closed
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Add test case for station name of length 100
This contribution was made on Jan 5
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Run test suite as part of PR build
This contribution was made on Jan 4
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Fix tests (richardstartin)
This contribution was made on Jan 4
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Fix tests (kuduwa-keshavram)
This contribution was made on Jan 4
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Fix tests (ddimtirov)
This contribution was made on Jan 4
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Fix tests (palmr)
This contribution was made on Jan 4
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Add test with 10K distinct keys to the suite
This contribution was made on Jan 4
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Specify how to set the JDK with SDKman in the launch scripts
This contribution was made on Jan 4
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Clarify rounding semantics
This contribution was made on Jan 3
Answered 1 discussion in 1 repository
gunnarmorling/1brc
gunnarmorling/1brc
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Is it fair to use java libraries to solve it
This contribution was made on Jan 5
1
contribution
in private repositories
Jan 5




