3 ms·
It would be nice to see longer running experimentsto see how a) long term usage (compaction in LSM trees) and b) disk interactions (benefits of compression) imp
by sirrice 15y ago
It would be nice to see longer running experimentsto see how a) long term usage (compaction in LSM trees) and b) disk interactions (benefits of compression) impact performance.
For example, in the large values experiment, the experiment executes 1000 writes. However if the results report LevelDB as 1060 ops/sec. Assuming op == write, then the experiment ran for all of 1 second. This shows great instantaneous performance, but what if it kept running?
Additionally, it appears that no-compression is the way to go, which makes sense for small values and an in-memory experiment, but is that the case when disk comes into play?
- andytwigg 15y agoI've read most of the messages on this list with interest. I've done some benchmarking on LevelDB with billions of entries, and on commodity flash SSDs, and thought that summarising it might be of interest to folks on this list: http://www.acunu.com/blogs/andy-twigg/benchmarking-leveldb/ http://www.acunu.com/blogs/andy-twigg/benchmarking-leveldb/ Comments most welcome. -Andy -- CTO, Acunu Inc. www.acunu.com | http://www.cs.ox.ac.uk/people/andy.twigg/ http://www.cs.ox.ac.uk/people/andy.twigg/