[seddonm1]

I went through the same mental process as you and also use num_cpus [0] but this is based only on intuition that is likely wrong. More benchmarking is needed as my benchmarks show that more parallelism only works to a point.

You can see how the transactions work in this example[1]. I have a connection `.write()` or `.read()` which decides which queue to use. I am in the process [2] of trying to do a PR against rusqlite to set the default transaction behavior as a result of this benchmarking so hopefully `write()` will default to IMMEDIATE and `read()` remains DEFERRED.

[0] https://docs.rs/num_cpus/latest/num_cpus/ [1] https://github.com/seddonm1/s3ite/blob/0.5.0/src/s3.rs#L147 [2] https://github.com/rusqlite/rusqlite/pull/1532