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Type:
Improvement
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Status: Open
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Priority:
Normal
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Resolution: Unresolved
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Fix Version/s: None
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Component/s: Feature/Compression
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Labels:
The initial commit log compression implementation can do about 240 megabytes/second (uncompressed input) on a fast (500 megabytes/sec) SSD.
This is basically what I measured as the throughput of LZ4 against the same data.
Assuming a 1.5x compression ratio that is 160 megabytes/second of output. Enough to saturate a spinning disk, but not an SSD.
- depends upon
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CASSANDRA-6809 Compressed Commit Log
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- Resolved
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- is related to
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CASSANDRA-8729 Commitlog causes read before write when overwriting
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- Resolved
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