1brc

Golang solution for the 1brc challenge.

Approach

• Split the file into chunks for parallel reading.
• Parse the chunks simultaneously.
• Monitor the chunks and compute the average.
• Arrange the data in alphabetical order based on the name.
• Display the calculated average.

Usage

• build the binary

go build

• run the binary

1brc <path to the measurement file>

Performance

Average Time taken: 14.8s

NOTE: The time taken is with a MacBook M2 Pro.

CPU flame graph: