Rustlog uses a config format nearly identical to justlog, however you still need to add Clickhouse connection settings to it. See [CONFIG.md](./CONFIG.md) for the keys starting with `clickhouse`.
The `--jobs` parameter defines how many threads rustlog will use for migrating. If your logs are on a HDD, you should keep it at 1, as IO will likely be the bottleneck anyway. If you have an SSD, then setting the value to half of your CPU threads should generally work well.
The migration can take anywhere from a few minutes to a few hours depending on your amount of logs and system resources.