Hi,

> 'jdbc:h2:split:my_path;PAGE_SIZE=1024'

Why do you split the database, and why do you use a different page size?

> During that process the CPU usage is rather low
> (approx. 15%) and so is the I/O throughput (no more than a few
> hundreds kB/s; it jumps to more than 10 MB/s for a few seconds just
> before finish).

Could you run the profiling tool to find out what exactly is going on
at that time? See
http://h2database.com/html/performance.html#application_profiling -
Example:

Profiler profiler = new Profiler();
profiler.startCollecting();

// application code
conn.close();

System.out.println(profiler.getTop(10));

Regards,
Thomas

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