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addb-swstarlab / DATATune

DATATune (Databse Parameter Tuning via Autoendoer Latent Space)
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Questions on RocksDB Performance and Data Size #20

Closed SkiddieAhn closed 1 day ago

SkiddieAhn commented 2 weeks ago

Hi, I have a few questions after reading the README:

  1. What does "performance" mean for RocksDB?

  2. How big is the data in RocksDB, and does data size affect how well it performs?

Thanks!

Kwon-sein commented 1 day ago

Hi, Thank you for your questions.

1. RocksDB performance metrics include TIME, which measures the time taken to complete database operations for a given workload; RATE, which measures the number of operations processed per second; Write Amplification Factor (WAF), which indicates the write amplification ratio of the workload for a specific configuration; and Space Amplification Factor (SAF), which represents the space amplification ratio during the data storage process. Good performance is defined by lower TIME, WAF, and SAF values, and a higher RATE value.

2. The size of data has a significant impact on resources and performance in RocksDB. Since the amount of data that needs to be processed varies for each RATE, WAF, SAF, and TIME described above, it can be said to have a significant impact on performance.

If you have any additional questions, please leave an issue.