Results of cleaning databases:
x10:
Removed 166 246 unused characters, now they number 402 885, previously database size 22 GB, now 14.1 GB.
Problems with up server delay to 1-2 sec. every 15 min resolved.
x100:
Removed 658 961 unused characters, now they number 1 244 025, previously database size 61 GB, now 42 GB.
Problems with up server delay to 4-6 sec. every 15 min resolved.
Fun:
Removed 932 455 unused characters, now they number 1 477 582, previously database size 145 GB, now 90 GB.
Problems with up server delay to 3-4 sec. every 15 min resolved.
Thus it is possible to bring a positive result, the databases decreased in size by 35-40%, which is a positive impact on performance, was also able to get rid of jumps server delay, which in recent months has contributed discomfort for players from x100 and Fun (to a lesser extent for x10), and are now so-called lag of 4-6 seconds because of problems at the server level is no more.
Also available lots of interesting nicknames for characters, you can try to enter previously busy nicknames.
Next scheduled cleaning after 6-8 months.