Something

H2Platform
==========
Resolving 200 Feeds [Cold - 10 Jobs] took: 231ms
Resolving 200 Feeds [Warm - 10 Jobs] took: 123ms

Saving 200 Feeds [Cold - 10 Jobs] took: 3395ms
Saving 200 Feeds [Warm - 10 Jobs] took: 2802ms

Resolving 200 Feeds with all News [Cold - 10 Jobs] took: 484ms
Resolving 200 Feeds with all News [Warm - 10 Jobs] took: 401ms

Resolving 200 Feeds with all News completly [Cold - 10 Jobs] took: 693ms
Resolving 200 Feeds with all News completly [Warm - 10 Jobs] took: 609ms

Deleting 200 Feeds [Cold - 10 Jobs] took: 3012ms
Deleting 200 Feeds [Warm - 10 Jobs] took: 1600ms
Updating 200 Feeds [Cold - 10 Jobs] took: 1182ms
Updating 200 Feeds [Warm - 10 Jobs] took: 1087ms
Saving/Resolving 100 Feeds [Cold - 10 Jobs] took: 1089ms
Saving/Resolving 100 Feeds [Warm - 10 Jobs] took: 1052ms

Updating without detached entities = ~51 _seconds_

MySQL4Platform
===============
Resolving 200 Feeds [Cold - 10 Jobs] took: 125ms
Resolving 200 Feeds [Warm - 10 Jobs] took: 127ms
Saving 200 Feeds [Cold - 10 Jobs] took: 3643ms
Saving 200 Feeds [Warm - 10 Jobs] took: 3117ms
Resolving 200 Feeds with all News [Cold - 10 Jobs] took: 465ms
Resolving 200 Feeds with all News [Warm - 10 Jobs] took: 417ms
Resolving 200 Feeds with all News completly [Cold - 10 Jobs] took: 603ms
Resolving 200 Feeds with all News completly [Warm - 10 Jobs] took: 606ms
Deleting 200 Feeds [Cold - 10 Jobs] took: 2584ms
Deleting 200 Feeds [Warm - 10 Jobs] took: 1468ms
Updating 200 Feeds [Cold - 10 Jobs] took: 1119ms
Updating 200 Feeds [Warm - 10 Jobs] took: 1075ms
Saving/Resolving 100 Feeds [Cold - 10 Jobs] took: 1131ms
Saving/Resolving 100 Feeds [Warm - 10 Jobs] took: 1151ms

Updating without detached entities = ~17 _seconds_