Document "fast" insert

[ruslandoga]

The example could be based on Plausible's in-memory buffer:

• https://github.com/plausible/analytics/blob/master/lib/plausible/event/write_buffer.ex
• https://github.com/plausible/analytics/blob/master/lib/plausible/session/write_buffer.ex
• https://github.com/plausible/analytics/blob/master/lib/plausible/ingestion/write_buffer.ex

[andyleclair]

We use an ETS-based double buffer for our inserts to Kafka (not open source so I can't directly show you) but it is based on the buffer that OpenTelemetry uses for spans. Performance is really good. Maybe if I have some free time I could put together a PR for plausible implementing something like that?

https://github.com/open-telemetry/opentelemetry-erlang/blob/main/apps/opentelemetry/src/otel_batch_processor.erl

[ruslandoga]

👋 @andyleclair

Oh, nice. I want to try it out!

We can document both!

Maybe if I have some free time I could put together a PR for plausible implementing something like that?

I think it might be easier to PR it as a guide here to avoid anything specific to Plausible.