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Mirror is Goldsky’s previous-generation pipeline product. If you’re building a new pipeline, use Turbo instead. See the Mirror vs. Turbo comparison, or the migration guide if you have an existing Mirror pipeline.

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Overview

As a quick test of Mirror’s write performance, we ran a pipeline of each size backfilling Ethereum blocks data (~18.5M rows as of October 23, 2023) with an unmodified schema. This test was performed on a 720 GiB RAM, 180 vCPU ClickHouse Cloud instance to ensure that non-pipeline factors (eg. disk IO, available memory, CPU cores) do not act as a bottleneck. Each test was run on a completely clean instance (ie. no existing tables) with no other queries or commands running on the database.

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Results

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