2300 nodes

Drupal 6  - unpatched /tracker
 pager_query ms
1. 76.97
2. 77.47
3. 233.97
4. 75.48 
5. 75.19

unpatched /tracker/4 (12 pages)
select distinct / select count ms.
1. 162.37 / 101.55
2. 1112.08 / 399.74
3. 189.23 / 98.92
4. 162.35 / 98.76
5. 166.42 / 105.77

Patched /tracker
1. 98.62
2. 96.82
3. 103.52
4. 96.55
5. 96.99

Patched /tracker/4
1. 692.27 / 91.88
2. 101.25 / 91.76
3. 92.09 / 88.5
4. 101.88 / 92.97
5. 92.66 / 88.29