AI-assisted review
Instance benchmarkVultr
voc-c-2c-4gb-50s-amd
The complete benchmark report. Every workload, in one place.
2 vCPU3.8 GiB RAMBLRx86_64
Within-run medians of passed repetitions. Some workloads are incomplete. One recorded test window; limitations and review details below.
01 /
CPU performance
sysbench prime workload · recorded thread counts.
1,316.75events/s
1 threads
1 threads
2,652.33events/s
2 threads
2 threads
- 1 threads1,316.75
- 2 threads2,652.33
Within-run medians; thread counts retain their recorded allocation.
Compression · 181.619 MiB/s · passed
02 /
Memory bandwidth
Sequential read and write · recorded sysbench workload.
Read15,716.25 MiB/s
Write13,754.14 MiB/s
- Read15,716.25
- Write13,754.14
Memory copy was not measured.
03 /
Disk performance
fio · direct I/O · recorded sequential and random workloads.
| Workload | Read bandwidth | Write bandwidth | Read IOPS | Write IOPS | Read p95 | Write p95 |
|---|---|---|---|---|---|---|
| write | Not measured | 2,023.112 MB/s | Not measured | 1,929.39 IOPS | Not measured | 62,128.128 us |
| read | 2,211.428 MB/s | Not measured | 2,108.982 IOPS | Not measured | 45,875.2 us | Not measured |
| randwrite | Not measured | 321.137 MB/s | Not measured | 78,402.52 IOPS | Not measured | 544.768 us |
| randread | 387.841 MB/s | Not measured | 94,687.744 IOPS | Not measured | 452.608 us | Not measured |
| randrw | 246.845 MB/s | 105.832 MB/s | 60,264.858 IOPS | 25,837.939 IOPS | 536.576 us | 544.768 us |
Read, write and mixed workloads are recorded separately. These are medians of measured repetitions.
04 /
Network performance
Source: BLR · controlled London endpoints.
| Destination | Download (receiver) | Upload (receiver) | Round-trip mean |
|---|---|---|---|
| London endpoint 1 | 99.07 Mbit/s | 97.309 Mbit/s | 144.475 ms |
| London endpoint 2 | 99.945 Mbit/s | 95.268 Mbit/s | 246.903 ms |
100 Mbit/s rate setting · requested 64 MiB per direction; actual bytes can exceed the target. These routes do not measure maximum link capacity. Jitter and packet-loss scores are not inferred.
05 /
PostgreSQL performance
pgbench · recorded memory and storage dataset profiles.
| Dataset profile | Transactions / sec | Average latency |
|---|---|---|
| memory | 1,956.322 transactions/s | 2.041 ms |
| storage | 1,462.45 transactions/s | 2.732 ms |
Within-run medians. PostgreSQL latency percentiles were not measured.
06 /
Consistency over time
Recorded outcomes only; no synthetic time-series.
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| 24-hour consistency · repetition 1 | skipped | No measured score | Not measured |
This pilot does not establish 24-hour consistency or long-term reliability.
07 /
Inspect the evidence.
Recorded environment, reviewed measurements, and versioned source.
OSUbuntu 24.04.5 LTS
Architecturex86_64
Methodpilot-1
Deployments1
Window3691 seconds
AI-assisted review · Codex AI-assisted evidence review (user-delegated) · Reviewed 17 Oct 2026 · Published 17 Oct 2026 · Revision 1
Review and measurement limits
- Single deployment; not an independent three-instance cohort.
- No hardware attestation.
- Pilot memory implements read/write; copy workload deferred.
- Network endpoints must be supplied by the operator; no public third-party servers are used.
- Database latency distribution is not available from this pilot parser; average latency only.
- This profile is not a full implementation of all proposed methodology tests.
- Resource-constrained environment: CPU workers and RAM reflect affinity/cgroup limits, not host capacity. Private resource-limits evidence retains both; do not merge container/VM or architecture cohorts.
- Short profile: does not establish 24-hour consistency.
- This report received AI-assisted evidence review under user-delegated authorization. This is not independent human verification or hardware attestation.
- This pilot measures its recorded test window. It does not establish 24-hour consistency, long-term reliability or provider-wide performance.
- Network tests use two controlled London endpoints, one stream, a 100 Mbit/s rate setting and a requested 64 MiB byte target per direction. Reverse-mode polling can exceed that byte target; actual sent and received bytes govern traffic accounting. These results do not measure maximum link capacity.
- SKU and region were matched to retained deployment records. A missing detected SKU uses the operator-supplied plan and remains labelled supplied. Control-plane records and checksums do not attest the physical host or establish physical-host independence.
- Package versions and available guard and journal evidence were reviewed. These records do not establish continuous absence of package activity throughout the test window.
- The pilot includes memory read/write and average PostgreSQL latency. Memory-copy tests and PostgreSQL latency percentiles are not implemented. Skipped consistency and missing measurements are not scores.
- This first-wave run began before background package controls were tightened. Mitigation and point-in-time package checks are retained, but a prelaunch idle guard and continuous package-activity coverage are unavailable. Effects from unobserved background package activity cannot be ruled out.
Environment and configuration
| Recorded field | Value |
|---|---|
| Provider | Vultr · detected |
| Region | BLR · detected |
| Plan | voc-c-2c-4gb-50s-amd · supplied |
| CPU | AMD EPYC-Rome Processor |
| Architecture | x86_64 |
| Kernel | 6.8.0-146-generic |
| Virtualization | microsoft |
| Agent | 0.2.0 (45388107250ca6e26b216f15a9c17b8d405ec1b7+source.ff98e866b26b3ac76b512554) |
| Dependencies | sysbench: sysbench 1.0.20 · fio: fio-3.36 · iperf3: iperf 3.16 (cJSON 1.7.15) · postgresql: postgres (PostgreSQL) 16.15 (Ubuntu 16.15-0ubuntu0.24.04.1) · pgbench: pgbench (PostgreSQL) 16.15 (Ubuntu 16.15-0ubuntu0.24.04.1) · gzip: gzip 1.12 · apt:sysbench: 1.0.20+ds-6build2 · apt:fio: 3.36-1ubuntu0.1 · apt:iperf3: 3.16-1build2 · apt:postgresql-16: 16.15-0ubuntu0.24.04.1 · apt:postgresql-client-16: 16.15-0ubuntu0.24.04.1 · apt:gzip: 1.12-1ubuntu3.2 |
| Configuration hash | df52887e1ad7a6ee507622793a7787580c82a7d96be0379d411a6cf83dbb7457 |
| Started | 2026-10-17T11:42:40.121Z |
| Finished | 2026-10-17T12:44:11.289Z |
| Execution status | completed |
Every measured repetition and outcome
CPU performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| CPU 1 thread(s) · repetition 1 | passed | Events per second | 1,316.75 events/s |
| CPU 2 thread(s) · repetition 1 | passed | Events per second | 2,652.33 events/s |
| CPU 1 thread(s) · repetition 2 | passed | Events per second | 1,307.09 events/s |
| CPU 2 thread(s) · repetition 2 | passed | Events per second | 2,601.65 events/s |
| CPU 1 thread(s) · repetition 3 | passed | Events per second | 1,335.21 events/s |
| CPU 2 thread(s) · repetition 3 | passed | Events per second | 2,672.4 events/s |
| gzip fixed corpus · repetition 1 | passed | Compression input throughput | 181.619 MiB/s |
Memory bandwidth
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Memory read · repetition 1 | passed | Bandwidth | 15,716.25 MiB/s |
| Memory write · repetition 1 | passed | Bandwidth | 13,651.95 MiB/s |
| Memory read · repetition 2 | passed | Bandwidth | 14,843.59 MiB/s |
| Memory write · repetition 2 | passed | Bandwidth | 13,754.14 MiB/s |
| Memory read · repetition 3 | passed | Bandwidth | 15,819.69 MiB/s |
| Memory write · repetition 3 | passed | Bandwidth | 14,297.11 MiB/s |
Disk performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Disk write · repetition 1 | passed | write bandwidth | 2,023.112 MB/s |
| Disk write · repetition 1 | passed | write operations | 1,929.39 IOPS |
| Disk write · repetition 1 | passed | write p50 latency | 9,633.792 us |
| Disk write · repetition 1 | passed | write p95 latency | 62,128.128 us |
| Disk write · repetition 1 | passed | write p99 latency | 100,139.008 us |
| Disk read · repetition 1 | passed | read bandwidth | 2,309.488 MB/s |
| Disk read · repetition 1 | passed | read operations | 2,202.5 IOPS |
| Disk read · repetition 1 | passed | read p50 latency | 9,371.648 us |
| Disk read · repetition 1 | passed | read p95 latency | 45,875.2 us |
| Disk read · repetition 1 | passed | read p99 latency | 103,284.736 us |
| Disk randwrite · repetition 1 | passed | write bandwidth | 321.137 MB/s |
| Disk randwrite · repetition 1 | passed | write operations | 78,402.52 IOPS |
| Disk randwrite · repetition 1 | passed | write p50 latency | 382.976 us |
| Disk randwrite · repetition 1 | passed | write p95 latency | 544.768 us |
| Disk randwrite · repetition 1 | passed | write p99 latency | 659.456 us |
| Disk randread · repetition 1 | passed | read bandwidth | 386.252 MB/s |
| Disk randread · repetition 1 | passed | read operations | 94,299.89 IOPS |
| Disk randread · repetition 1 | passed | read p50 latency | 321.536 us |
| Disk randread · repetition 1 | passed | read p95 latency | 456.704 us |
| Disk randread · repetition 1 | passed | read p99 latency | 552.96 us |
| Disk randrw · repetition 1 | passed | read bandwidth | 246.845 MB/s |
| Disk randrw · repetition 1 | passed | read operations | 60,264.858 IOPS |
| Disk randrw · repetition 1 | passed | read p50 latency | 342.016 us |
| Disk randrw · repetition 1 | passed | read p95 latency | 536.576 us |
| Disk randrw · repetition 1 | passed | read p99 latency | 847.872 us |
| Disk randrw · repetition 1 | passed | write bandwidth | 105.832 MB/s |
| Disk randrw · repetition 1 | passed | write operations | 25,837.939 IOPS |
| Disk randrw · repetition 1 | passed | write p50 latency | 329.728 us |
| Disk randrw · repetition 1 | passed | write p95 latency | 552.96 us |
| Disk randrw · repetition 1 | passed | write p99 latency | 815.104 us |
| Disk write · repetition 2 | passed | write bandwidth | 2,279.747 MB/s |
| Disk write · repetition 2 | passed | write operations | 2,174.136 IOPS |
| Disk write · repetition 2 | passed | write p50 latency | 10,158.08 us |
| Disk write · repetition 2 | passed | write p95 latency | 43,253.76 us |
| Disk write · repetition 2 | passed | write p99 latency | 92,798.976 us |
| Disk read · repetition 2 | passed | read bandwidth | 2,172.5 MB/s |
| Disk read · repetition 2 | passed | read operations | 2,071.857 IOPS |
| Disk read · repetition 2 | passed | read p50 latency | 10,551.296 us |
| Disk read · repetition 2 | passed | read p95 latency | 46,923.776 us |
| Disk read · repetition 2 | passed | read p99 latency | 93,847.552 us |
| Disk randwrite · repetition 2 | passed | write bandwidth | 314.446 MB/s |
| Disk randwrite · repetition 2 | passed | write operations | 76,769.141 IOPS |
| Disk randwrite · repetition 2 | passed | write p50 latency | 395.264 us |
| Disk randwrite · repetition 2 | passed | write p95 latency | 552.96 us |
| Disk randwrite · repetition 2 | passed | write p99 latency | 659.456 us |
| Disk randread · repetition 2 | passed | read bandwidth | 394.47 MB/s |
| Disk randread · repetition 2 | passed | read operations | 96,306.19 IOPS |
| Disk randread · repetition 2 | passed | read p50 latency | 317.44 us |
| Disk randread · repetition 2 | passed | read p95 latency | 440.32 us |
| Disk randread · repetition 2 | passed | read p99 latency | 528.384 us |
| Disk randrw · repetition 2 | passed | read bandwidth | 246.578 MB/s |
| Disk randrw · repetition 2 | passed | read operations | 60,199.627 IOPS |
| Disk randrw · repetition 2 | passed | read p50 latency | 346.112 us |
| Disk randrw · repetition 2 | passed | read p95 latency | 536.576 us |
| Disk randrw · repetition 2 | passed | read p99 latency | 856.064 us |
| Disk randrw · repetition 2 | passed | write bandwidth | 105.72 MB/s |
| Disk randrw · repetition 2 | passed | write operations | 25,810.64 IOPS |
| Disk randrw · repetition 2 | passed | write p50 latency | 329.728 us |
| Disk randrw · repetition 2 | passed | write p95 latency | 544.768 us |
| Disk randrw · repetition 2 | passed | write p99 latency | 790.528 us |
| Disk write · repetition 3 | passed | write bandwidth | 1,892.133 MB/s |
| Disk write · repetition 3 | passed | write operations | 1,804.479 IOPS |
| Disk write · repetition 3 | passed | write p50 latency | 10,289.152 us |
| Disk write · repetition 3 | passed | write p95 latency | 69,730.304 us |
| Disk write · repetition 3 | passed | write p99 latency | 110,624.768 us |
| Disk read · repetition 3 | passed | read bandwidth | 2,211.428 MB/s |
| Disk read · repetition 3 | passed | read operations | 2,108.982 IOPS |
| Disk read · repetition 3 | passed | read p50 latency | 10,027.008 us |
| Disk read · repetition 3 | passed | read p95 latency | 44,302.336 us |
| Disk read · repetition 3 | passed | read p99 latency | 89,653.248 us |
| Disk randwrite · repetition 3 | passed | write bandwidth | 323.773 MB/s |
| Disk randwrite · repetition 3 | passed | write operations | 79,046.165 IOPS |
| Disk randwrite · repetition 3 | passed | write p50 latency | 378.88 us |
| Disk randwrite · repetition 3 | passed | write p95 latency | 544.768 us |
| Disk randwrite · repetition 3 | passed | write p99 latency | 667.648 us |
| Disk randread · repetition 3 | passed | read bandwidth | 387.841 MB/s |
| Disk randread · repetition 3 | passed | read operations | 94,687.744 IOPS |
| Disk randread · repetition 3 | passed | read p50 latency | 321.536 us |
| Disk randread · repetition 3 | passed | read p95 latency | 452.608 us |
| Disk randread · repetition 3 | passed | read p99 latency | 544.768 us |
| Disk randrw · repetition 3 | passed | read bandwidth | 252.319 MB/s |
| Disk randrw · repetition 3 | passed | read operations | 61,601.413 IOPS |
| Disk randrw · repetition 3 | passed | read p50 latency | 337.92 us |
| Disk randrw · repetition 3 | passed | read p95 latency | 509.952 us |
| Disk randrw · repetition 3 | passed | read p99 latency | 831.488 us |
| Disk randrw · repetition 3 | passed | write bandwidth | 108.172 MB/s |
| Disk randrw · repetition 3 | passed | write operations | 26,409.286 IOPS |
| Disk randrw · repetition 3 | passed | write p50 latency | 325.632 us |
| Disk randrw · repetition 3 | passed | write p95 latency | 518.144 us |
| Disk randrw · repetition 3 | passed | write p99 latency | 741.376 us |
Network performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Network upload endpoint 1 · repetition 1 | passed | Sender throughput | 100.154 Mbit/s |
| Network upload endpoint 1 · repetition 1 | passed | Receiver throughput | 97.309 Mbit/s |
| Network download endpoint 1 · repetition 1 | passed | Sender throughput | 100.011 Mbit/s |
| Network download endpoint 1 · repetition 1 | passed | Receiver throughput | 99.07 Mbit/s |
| Latency endpoint 1 · repetition 1 | passed | Round-trip mean | 144.475 ms |
| Network upload endpoint 2 · repetition 1 | passed | Sender throughput | 100.154 Mbit/s |
| Network upload endpoint 2 · repetition 1 | passed | Receiver throughput | 95.268 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Sender throughput | 100.084 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Receiver throughput | 99.945 Mbit/s |
| Latency endpoint 2 · repetition 1 | passed | Round-trip mean | 246.903 ms |
PostgreSQL performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| PostgreSQL memory dataset · repetition 1 | passed | Transactions | 2,047.514 transactions/s |
| PostgreSQL memory dataset · repetition 1 | passed | Average latency | 1.95 ms |
| PostgreSQL memory dataset · repetition 2 | passed | Transactions | 1,864.784 transactions/s |
| PostgreSQL memory dataset · repetition 2 | passed | Average latency | 2.141 ms |
| PostgreSQL memory dataset · repetition 3 | passed | Transactions | 1,956.322 transactions/s |
| PostgreSQL memory dataset · repetition 3 | passed | Average latency | 2.041 ms |
| PostgreSQL storage dataset · repetition 1 | passed | Transactions | 1,462.45 transactions/s |
| PostgreSQL storage dataset · repetition 1 | passed | Average latency | 2.732 ms |
| PostgreSQL storage dataset · repetition 2 | passed | Transactions | 1,478.142 transactions/s |
| PostgreSQL storage dataset · repetition 2 | passed | Average latency | 2.704 ms |
| PostgreSQL storage dataset · repetition 3 | passed | Transactions | 1,405.819 transactions/s |
| PostgreSQL storage dataset · repetition 3 | passed | Average latency | 2.842 ms |
Consistency over time
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| 24-hour consistency · repetition 1 | skipped | No measured score | Not measured |
One deployment during its recorded test window. Raw intake logs remain private; the JSON download contains the reviewed, sanitized snapshot.