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# 1️⃣🐝🏎️ The One Billion Row Challenge

     

       
2
       
 
       


     

       
3
       
 
       
The One Billion Row Challenge (1BRC) is a fun exploration of how far modern Java can be pushed for aggregating one billion rows from a text file.

     

       
0
       
 
       

     

       
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The text file contains temperature values for a range of weather stations.

     

       
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Each row is one measurement in the format `<string: station id>;<double: measurement>`.

     

···

       
1
       
 
       
# 1️⃣🐝🏎️ The One Billion Row Challenge

     

       
2
       
 
       


     

       
3
       
 
       
The One Billion Row Challenge (1BRC) is a fun exploration of how far modern Java can be pushed for aggregating one billion rows from a text file.

     

       
4
       
+
       
Grab all your (virtual) threads, reach out to SIMD, optimize your GC, or pull any other trick, and create the fastest implementation for solving this task!

     

       
5
       
 
       


     

       
6
       
 
       
The text file contains temperature values for a range of weather stations.

     

       
7
       
 
       
Each row is one measurement in the format `<string: station id>;<double: measurement>`.