Import
August 22, 2026 · View on GitHub
Systems
| System | Provider | CPU | Cores | RAM | SSD |
|---|---|---|---|---|---|
| LEA25 | on-prem | EPYC 7543P | 4 | 32 GiB | 3.2 TB Intel P5600 over vSAN |
| LEA36 | on-prem | EPYC 7543P | 8 | 64 GiB | 3.2 TB Intel P5600 over vSAN |
| LEA47 | on-prem | EPYC 7543P | 16 | 128 GiB | 3.2 TB Intel P5600 over vSAN |
| LEA58 | on-prem | EPYC 7543P | 32 | 256 GiB | 3.2 TB Intel P5600 over vSAN |
| LEA79 | on-prem | EPYC 9555 | 128 | 768 GiB | 12.8 TB Huawei OceanDisk 300P |
| A5N46 | on-prem | Ryzen 9900X | 24 | 96 GiB | 4 TB Samsung 990 Pro |
All systems were configured according to the Production Configuration guide.
On all systems, the heap memory and the block cache were each configured to use 1/4 of the total available RAM. Consequently, the Blaze process itself uses about half of the available system memory, leaving the remainder for the file system cache.
Datasets
The following datasets were used:
| Dataset | History | # Pat. ¹ | # Res. ² | # Obs. ³ | Size on SSD |
|---|---|---|---|---|---|
| 100k | 10 years | 100 k | 104 M | 59 M | 110 GiB |
| 100k-fh | full | 100 k | 317 M | 191 M | 323 GiB |
| 1M | 10 years | 1 M | 1044 M | 593 M | 1045 GiB |
¹ Number of Patients, ² Total Number of Resources, ³ Number of Observations
The creation of the datasets is described in the Synthea section. The disc size is measured after full manual compaction of the database. The actual disc size will be up to 50% higher, depending on the state of compaction which happens regularly in the background.
Import
blazectl --server http://localhost:8080/fhir upload -c8 <dataset>
| System | Dataset | DB Scale Factor | Max Subcompactions | Time (h) | Resources/s |
|---|---|---|---|---|---|
| LEA47 | 100k | 1 | 1 | 2.855 | 10108 |
| LEA47 | 100k-fh | 1 | 1 | 9.797 | 8977 |
| LEA58 | 100k | 1 | 1 | 2.169 | 13305 |
| LEA58 | 100k-fh | 1 | 1 | 7.426 | 11843 |
| LEA58 | 1M | 4 | 1 | 26,480 | 10955 |
| LEA79 | 100k | 8 | 1 | 0,648 | 44520 |
| LEA79 | 100k | 8 | 8 | 0,426 | 67737 |
| LEA79 | 1M | 1 | 1 | 18.227 | 15915 |
| LEA79 | 1M | 4 | 1 | 12.174 | 23829 |
Read more about the DB Scale Factor and Max Subcompactions in the Environment Variables Section.