Re: [PERFORM] Improving PostgreSQL insert performance

pgjdbc does automatically rewrite insert values(); into insert ... values(),(),(),() when reWriteBatchedInserts=true. I don't expect manual multivalues to be noticeably faster there.

Frits>https://etc.to/confluence/display/~admjal/PostgreSQL+performance+tests

Do you really intend to measure just a single insert operation?

It looks odd, as typical applications would execute inserts for quite a while before they terminate.

You are including lots of warmup overheads (e.g. JIT-compilation), so your approach does not measure peak performance.

On the other hand, you are not measuring enough time to catch things like "DB log switch".

Would you please use JMH as a load driver?

Here's an example: https://github.com/pgjdbc/pgjdbc/blob/master/ubenchmark/src/main/java/org/postgresql/benchmark/statement/InsertBatch.java 

Vladimir