fsfs7/unpacked    fsfs6/unpacked     fsfs7/packed  fsfs6/packed
svnadmin dump       1010.513          930.236           1614.303      880.476
svn log http://      194.027           15.665             21.821       22.553
svn log file://        9.096            9.174             17.177       17.073
svn export http://    12.324            9.372             49.716        9.138
svn export file://    12.048            6.417             42.641        6.821

Environment:
Windows Server 2008 R2 (x64) hosted on Windows Server 2012 R2 Hyper-V
1.5 GB RAM, with 2 virtual processors hosted on IBM x3620 M3 with SAS raid
Subversion 1.9.0-dev from trunk@r1605444
Test data: Ruby project repository (46054 revisions, 400mb-500mb size on disk)

All tests are performed using default options.
Every test was run 3 times and only two latest used
Tests performed:
1. svnadmin dump >nul               
2. svn log http://localhost/svn/repo >nul               
3. svn log file:///D:/Repositories/repo >nul
4. svn export -q http://localhost/svn/repo/trunk wc
5. svn export -q file:///D:/Repositories/repo/trunk wc