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by free-ekanayaka
2995 days ago
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"slower" means this: when you perform a SQLite write, SQLite writes a new page on disk to the its write-ahead log. dqlite needs to replicate that page write across all nodes. A page is typically 4kb, so when you do a write on the leader node you need to transfer 4kb across the wire to all other follower nodes and wait for a quorum of them to come back and say "I got it" (which includes writing the page to disk). On the contrary rqlite just needs to transfer and store the SQL text, which is typically less than 4kb. In practice it's still pretty performant, but I'll publish benchmarks later on. I plan to submit the patch to SQLite upstream too, yes. |
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