Follow descriptions of the test environments used for benchmarking of OWLIM semantic repository.
| Name | CPU | RAM | Storage | OS | JVM | Cost |
| ontonap | 2x Xeon 5430 (2.5GHz, quad-core) | 64GB (FB-DDR2) | 8x146GB 15krpm, RAID 6 | CentOS | Sun JDK 1.6 | < $10,000 |
| ontonap-s | 2x Xeon 5430 (2.5GHz, quad-core) | 64GB (FB-DDR2) | 8x146GB 15krpm, RAID 6, single 120GB SSD | Open Solaris | Sun JDK 1.6 | < $10,000 |
| ontosol | Core i7 940 (2.93GHz, quad-core, HT) | 12GB (DDR3) | 3x320GB 7.2krpm, RAID 0 | Solaris | Sun JDK 1.6 | < $1,800 |
| hp-esx | 2x Opteron 2384 (2.7GHz, quad-core) | 64GB (DDR2) | 8x146GB 10krpm, RAID 6 | ESXi 3.1 | Sun JDK 1.6 | < $10,000 |
| ldsr-vm1 | 4 (V) CPUs on hp-esx | 20GB (V) | 100GB (V) | CentOS | Sun JDK 1.6 | < $5,000 |
| Piv0.9g | Pentium IV 630 (3.0GHz, single-core, HT) | 2GB of which 900M given as Java heap | single 7.2krpm SATA drive | Windows XP | Sun JDK 1.6 | < $1,000 |
(V) stands for "virtual"