AI-assisted review
Instance benchmarkVultr
voc-c-2c-4gb-50s-amd
The complete benchmark report. Every workload, in one place.
2 vCPU3.8 GiB RAMLHRx86_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.
1,652.02events/s
1 threads
1 threads
3,286.53events/s
2 threads
2 threads
- 1 threads1,652.02
- 2 threads3,286.53
Within-run medians; thread counts retain their recorded allocation.
Compression · 242.097 MiB/s · passed
02 /
Memory bandwidth
Sequential read and write · recorded sysbench workload.
Read32,366.13 MiB/s
Write24,748.62 MiB/s
- Read32,366.13
- Write24,748.62
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 | 2,065.84 MB/s | Not measured | 1,970.138 IOPS | Not measured | 32,374.784 us |
| read | 4,406.158 MB/s | Not measured | 4,202.04 IOPS | Not measured | 15,663.104 us | Not measured |
| randwrite | Not measured | 399.46 MB/s | Not measured | 97,524.516 IOPS | Not measured | 468.992 us |
| randread | 470.66 MB/s | Not measured | 114,907.27 IOPS | Not measured | 366.592 us | Not measured |
| randrw | 307.197 MB/s | 131.764 MB/s | 74,999.167 IOPS | 32,168.961 IOPS | 411.648 us | 374.784 us |
Read, write and mixed workloads are recorded separately. These are medians of measured repetitions.
04 /
Network performance
Source: LHR · controlled London endpoints.
| Destination | Download (receiver) | Upload (receiver) | Round-trip mean |
|---|---|---|---|
| London endpoint 1 | 100.121 Mbit/s | 100.097 Mbit/s | 2.43 ms |
| London endpoint 2 | 100.121 Mbit/s | 100.15 Mbit/s | 0.36 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 | 3,918.026 transactions/s | 1.018 ms |
| storage | 3,331.977 transactions/s | 1.198 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
Window2553 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 | LHR · detected |
| Plan | voc-c-2c-4gb-50s-amd · supplied |
| CPU | AMD EPYC-Milan 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 | 04ef317a427395210a1b23d06864352aa183ecbd6b7d0717ee926af7a9301069 |
| Started | 2026-10-17T11:41:57.936Z |
| Finished | 2026-10-17T12:24:30.769Z |
| 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 | 1,650.86 events/s |
| CPU 2 thread(s) · repetition 1 | passed | Events per second | 3,298.57 events/s |
| CPU 1 thread(s) · repetition 2 | passed | Events per second | 1,652.02 events/s |
| CPU 2 thread(s) · repetition 2 | passed | Events per second | 3,286.53 events/s |
| CPU 1 thread(s) · repetition 3 | passed | Events per second | 1,653.18 events/s |
| CPU 2 thread(s) · repetition 3 | passed | Events per second | 3,283.77 events/s |
| gzip fixed corpus · repetition 1 | passed | Compression input throughput | 242.097 MiB/s |
Memory bandwidth
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Memory read · repetition 1 | passed | Bandwidth | 32,366.13 MiB/s |
| Memory write · repetition 1 | passed | Bandwidth | 24,951.93 MiB/s |
| Memory read · repetition 2 | passed | Bandwidth | 31,465.51 MiB/s |
| Memory write · repetition 2 | passed | Bandwidth | 24,699.06 MiB/s |
| Memory read · repetition 3 | passed | Bandwidth | 33,364.58 MiB/s |
| Memory write · repetition 3 | passed | Bandwidth | 24,748.62 MiB/s |
Disk performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Disk write · repetition 1 | passed | write bandwidth | 1,741.967 MB/s |
| Disk write · repetition 1 | passed | write operations | 1,661.269 IOPS |
| Disk write · repetition 1 | passed | write p50 latency | 18,219.008 us |
| Disk write · repetition 1 | passed | write p95 latency | 34,340.864 us |
| Disk write · repetition 1 | passed | write p99 latency | 47,448.064 us |
| Disk read · repetition 1 | passed | read bandwidth | 3,758.568 MB/s |
| Disk read · repetition 1 | passed | read operations | 3,584.45 IOPS |
| Disk read · repetition 1 | passed | read p50 latency | 7,766.016 us |
| Disk read · repetition 1 | passed | read p95 latency | 17,956.864 us |
| Disk read · repetition 1 | passed | read p99 latency | 23,461.888 us |
| Disk randwrite · repetition 1 | passed | write bandwidth | 397.481 MB/s |
| Disk randwrite · repetition 1 | passed | write operations | 97,041.265 IOPS |
| Disk randwrite · repetition 1 | passed | write p50 latency | 321.536 us |
| Disk randwrite · repetition 1 | passed | write p95 latency | 477.184 us |
| Disk randwrite · repetition 1 | passed | write p99 latency | 544.768 us |
| Disk randread · repetition 1 | passed | read bandwidth | 470.66 MB/s |
| Disk randread · repetition 1 | passed | read operations | 114,907.27 IOPS |
| Disk randread · repetition 1 | passed | read p50 latency | 268.288 us |
| Disk randread · repetition 1 | passed | read p95 latency | 366.592 us |
| Disk randread · repetition 1 | passed | read p99 latency | 411.648 us |
| Disk randrw · repetition 1 | passed | read bandwidth | 305.311 MB/s |
| Disk randrw · repetition 1 | passed | read operations | 74,538.815 IOPS |
| Disk randrw · repetition 1 | passed | read p50 latency | 309.248 us |
| Disk randrw · repetition 1 | passed | read p95 latency | 411.648 us |
| Disk randrw · repetition 1 | passed | read p99 latency | 481.28 us |
| Disk randrw · repetition 1 | passed | write bandwidth | 130.946 MB/s |
| Disk randrw · repetition 1 | passed | write operations | 31,969.301 IOPS |
| Disk randrw · repetition 1 | passed | write p50 latency | 244.736 us |
| Disk randrw · repetition 1 | passed | write p95 latency | 378.88 us |
| Disk randrw · repetition 1 | passed | write p99 latency | 481.28 us |
| Disk write · repetition 2 | passed | write bandwidth | 2,065.84 MB/s |
| Disk write · repetition 2 | passed | write operations | 1,970.138 IOPS |
| Disk write · repetition 2 | passed | write p50 latency | 14,352.384 us |
| Disk write · repetition 2 | passed | write p95 latency | 32,374.784 us |
| Disk write · repetition 2 | passed | write p99 latency | 44,826.624 us |
| Disk read · repetition 2 | passed | read bandwidth | 4,406.158 MB/s |
| Disk read · repetition 2 | passed | read operations | 4,202.04 IOPS |
| Disk read · repetition 2 | passed | read p50 latency | 6,717.44 us |
| Disk read · repetition 2 | passed | read p95 latency | 15,663.104 us |
| Disk read · repetition 2 | passed | read p99 latency | 21,626.88 us |
| Disk randwrite · repetition 2 | passed | write bandwidth | 399.46 MB/s |
| Disk randwrite · repetition 2 | passed | write operations | 97,524.516 IOPS |
| Disk randwrite · repetition 2 | passed | write p50 latency | 321.536 us |
| Disk randwrite · repetition 2 | passed | write p95 latency | 468.992 us |
| Disk randwrite · repetition 2 | passed | write p99 latency | 528.384 us |
| Disk randread · repetition 2 | passed | read bandwidth | 470.487 MB/s |
| Disk randread · repetition 2 | passed | read operations | 114,864.905 IOPS |
| Disk randread · repetition 2 | passed | read p50 latency | 268.288 us |
| Disk randread · repetition 2 | passed | read p95 latency | 366.592 us |
| Disk randread · repetition 2 | passed | read p99 latency | 411.648 us |
| Disk randrw · repetition 2 | passed | read bandwidth | 307.197 MB/s |
| Disk randrw · repetition 2 | passed | read operations | 74,999.167 IOPS |
| Disk randrw · repetition 2 | passed | read p50 latency | 305.152 us |
| Disk randrw · repetition 2 | passed | read p95 latency | 407.552 us |
| Disk randrw · repetition 2 | passed | read p99 latency | 473.088 us |
| Disk randrw · repetition 2 | passed | write bandwidth | 131.764 MB/s |
| Disk randrw · repetition 2 | passed | write operations | 32,168.961 IOPS |
| Disk randrw · repetition 2 | passed | write p50 latency | 244.736 us |
| Disk randrw · repetition 2 | passed | write p95 latency | 374.784 us |
| Disk randrw · repetition 2 | passed | write p99 latency | 473.088 us |
| Disk write · repetition 3 | passed | write bandwidth | 2,071.997 MB/s |
| Disk write · repetition 3 | passed | write operations | 1,976.01 IOPS |
| Disk write · repetition 3 | passed | write p50 latency | 14,483.456 us |
| Disk write · repetition 3 | passed | write p95 latency | 32,112.64 us |
| Disk write · repetition 3 | passed | write p99 latency | 46,399.488 us |
| Disk read · repetition 3 | passed | read bandwidth | 4,978.63 MB/s |
| Disk read · repetition 3 | passed | read operations | 4,747.992 IOPS |
| Disk read · repetition 3 | passed | read p50 latency | 6,062.08 us |
| Disk read · repetition 3 | passed | read p95 latency | 13,565.952 us |
| Disk read · repetition 3 | passed | read p99 latency | 18,481.152 us |
| Disk randwrite · repetition 3 | passed | write bandwidth | 400.361 MB/s |
| Disk randwrite · repetition 3 | passed | write operations | 97,744.475 IOPS |
| Disk randwrite · repetition 3 | passed | write p50 latency | 321.536 us |
| Disk randwrite · repetition 3 | passed | write p95 latency | 468.992 us |
| Disk randwrite · repetition 3 | passed | write p99 latency | 536.576 us |
| Disk randread · repetition 3 | passed | read bandwidth | 471.997 MB/s |
| Disk randread · repetition 3 | passed | read operations | 115,233.659 IOPS |
| Disk randread · repetition 3 | passed | read p50 latency | 268.288 us |
| Disk randread · repetition 3 | passed | read p95 latency | 362.496 us |
| Disk randread · repetition 3 | passed | read p99 latency | 407.552 us |
| Disk randrw · repetition 3 | passed | read bandwidth | 307.982 MB/s |
| Disk randrw · repetition 3 | passed | read operations | 75,190.86 IOPS |
| Disk randrw · repetition 3 | passed | read p50 latency | 305.152 us |
| Disk randrw · repetition 3 | passed | read p95 latency | 411.648 us |
| Disk randrw · repetition 3 | passed | read p99 latency | 481.28 us |
| Disk randrw · repetition 3 | passed | write bandwidth | 132.081 MB/s |
| Disk randrw · repetition 3 | passed | write operations | 32,246.358 IOPS |
| Disk randrw · repetition 3 | passed | write p50 latency | 242.688 us |
| Disk randrw · repetition 3 | passed | write p95 latency | 370.688 us |
| Disk randrw · repetition 3 | passed | write p99 latency | 464.896 us |
Network performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Network upload endpoint 1 · repetition 1 | passed | Sender throughput | 100.157 Mbit/s |
| Network upload endpoint 1 · repetition 1 | passed | Receiver throughput | 100.097 Mbit/s |
| Network download endpoint 1 · repetition 1 | passed | Sender throughput | 100.074 Mbit/s |
| Network download endpoint 1 · repetition 1 | passed | Receiver throughput | 100.121 Mbit/s |
| Latency endpoint 1 · repetition 1 | passed | Round-trip mean | 2.43 ms |
| Network upload endpoint 2 · repetition 1 | passed | Sender throughput | 100.156 Mbit/s |
| Network upload endpoint 2 · repetition 1 | passed | Receiver throughput | 100.15 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Sender throughput | 100.117 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Receiver throughput | 100.121 Mbit/s |
| Latency endpoint 2 · repetition 1 | passed | Round-trip mean | 0.36 ms |
PostgreSQL performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| PostgreSQL memory dataset · repetition 1 | passed | Transactions | 3,696.893 transactions/s |
| PostgreSQL memory dataset · repetition 1 | passed | Average latency | 1.08 ms |
| PostgreSQL memory dataset · repetition 2 | passed | Transactions | 3,937.43 transactions/s |
| PostgreSQL memory dataset · repetition 2 | passed | Average latency | 1.013 ms |
| PostgreSQL memory dataset · repetition 3 | passed | Transactions | 3,918.026 transactions/s |
| PostgreSQL memory dataset · repetition 3 | passed | Average latency | 1.018 ms |
| PostgreSQL storage dataset · repetition 1 | passed | Transactions | 3,331.977 transactions/s |
| PostgreSQL storage dataset · repetition 1 | passed | Average latency | 1.198 ms |
| PostgreSQL storage dataset · repetition 2 | passed | Transactions | 3,382.843 transactions/s |
| PostgreSQL storage dataset · repetition 2 | passed | Average latency | 1.18 ms |
| PostgreSQL storage dataset · repetition 3 | passed | Transactions | 3,203.941 transactions/s |
| PostgreSQL storage dataset · repetition 3 | passed | Average latency | 1.246 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.