Canton minimal resource configuration

Questions
1

I want to run a Canton participant and domain in a demo environment, where I have very low performance requirements.

Are there configurations I can set to minimize Canton’s memory / CPU footprint?

In the docs I found the following settings for the participant:

canton.participants.participant1 {
    // tune caching configs of the ledger api server
    ledger-api {
        max-contract-state-cache-size = 1000 // default 1e6
        max-contract-key-state-cache-size = 1000 // default 1e6

        // The in-memory fan-out will serve the transaction streams from memory as they are finalized, rather than
        // using the database. Therefore, you should choose this buffer to be large enough such that the likeliness of
        // applications having to stream transactions from the database is low. Generally, having a 10s buffer is
        // sensible. Therefore, if you expect e.g. a throughput of 20 tx/s, then setting this number to 200 is sensible.
        // The default setting assumes 1000 tx/s.
        max-transactions-in-memory-fan-out-buffer-size = 200 // default 1e5
    }
    // tune the synchronisation protocols contract store cache
    caching {
        contract-store {
            maximum-size = 1000 // default 1e6
            expire-after-access = 120s // default 10 minutes
        }
    }
}

Are there others to consider? And are there similar ones for the domain?

2

No, that’s it for now. The caches are the ones that make the difference. CPU wise you don’t need much. We ran it on an android phone once.