Firebird 2.5 (speed up city database)?

Question

firebird

firebird 2.5
with databases work in read mode 80% of the time
, as many as 3-10 users. more often 4
iron
screw sata3-16mb cache,
stone i3 3200,
ddr3 4gb,
starting seven - axis, on the server the user in the office makes printouts and there is also a file trash - on a separate logical disk, a local ball ...
on a partition with a database (25 GB) cluster = 16kb ntfs + daily backups are
4-6 GB database, re-indexing once a year, you can once a month
100Mbit local,
city-scale database - 100 thousand to 500 million records firebird 2.5
it's a shame that the CPU is not loaded ...
on Linux i5 650+ddr3 8gb+sata3 - flew three times faster!
how to speed up? what to measure?
experimented with a large cache and virtual disk and wasted
changing the file system and defragmenting? mess with the network? change the packet length?

Answer 1

(repeat link)
www.ibase.ru/45-ways-to-improve-firebird-performan...