AI-assisted review
Instance benchmarkVultr voc-c-4c-8gb-75s-amd
The complete benchmark report. Every workload, in one place.
4 vCPU7.7 GiB RAMx86_64Bangalore, IN
All values below are medians of passed runs unless stated otherwise.
01 /
CPU performance
sysbench 1.0.20 prime workload · 1 thread and all 4 vCPUs.
1,333events/s
Single thread
Single thread
5,299events/s
All 4 vCPUs
All 4 vCPUs
- 1 thread1,333
- 4 threads5,299
Median of 3 passed runs of about 30 seconds per thread count.
gzip fixed corpus · compression input throughput 160.9 MiB/s · single run.
02 /
Memory bandwidth
sysbench 1.0.20 memory · sequential read and write operations.
Read13,023 MiB/s
Write12,513 MiB/s
CopyNot measured
- Read13,023
- Write12,513
- CopyNot measured
Median of 3 passed runs of about 30 seconds per operation. The copy workload is deferred in this methodology.
03 /
Disk performance
fio 3.36 · direct I/O · sequential, random and mixed jobs measured separately.
| Workload | Throughput | p95 latency |
|---|---|---|
| Sequential read | 3,421 MB/s | 27,394 µs |
| Sequential write | 2,410 MB/s | 38,011 µs |
| Random read | 92,339 IOPS | 473.1 µs |
| Random write | 79,365 IOPS | 593.9 µs |
| Random mix · read | 58,223 IOPS | 593.9 µs |
| Random mix · write | 24,963 IOPS | 626.7 µs |
Median of 3 passed runs of about 30 seconds per job. The mixed job's reads and writes are listed separately.
04 /
Network performance
Source: Bangalore, IN · two controlled London endpoints.
| Destination | Download | Upload | RTT | Jitter | Loss |
|---|---|---|---|---|---|
| London endpoint 1 | 92.3 Mbit/s | 97.4 Mbit/s | 152.7 ms | — | — |
| London endpoint 2 | 99.9 Mbit/s | 95.5 Mbit/s | 247.7 ms | — | — |
Results describe these measured paths at a 100 Mbit/s rate setting, not maximum link capacity. RTT is the probe mean; jitter and packet loss were not measured.
05 /
PostgreSQL performance
PostgreSQL 16.15 · pgbench · in-memory and storage-bound datasets.
| Dataset profile | Transactions / sec | Average latency | Passed runs |
|---|---|---|---|
| In memory | 2,670 | 1.50 ms | 3 of 3 passed |
| Storage-bound | 1,920 | 2.08 ms | 3 of 3 passed |
Median of 3 passed runs of about 30 seconds per dataset. Latency percentiles were not measured.
06 /
Consistency across runs
One deployment · repeated runs inside the recorded test window.
24-hour consistencyNot measured
Workload skipped · No measured score. This report covers a 66 min test window, so no time series exists and none is drawn.
| Repetition | CPU 1 thread | Memory read | Random read | PostgreSQL |
|---|---|---|---|---|
| 1 | 1,333 events/s | 13,196 MiB/s | 92,339 IOPS | 2,670 tx/s |
| 2 | 1,333 events/s | 13,023 MiB/s | 95,224 IOPS | 2,680 tx/s |
| 3 | 1,312 events/s | 12,412 MiB/s | 89,219 IOPS | 2,586 tx/s |
Individual runs, not medians. PostgreSQL uses the in-memory dataset. Spread within one test window does not establish long-term consistency.
07 /
Inspect the evidence.
Recorded environment, reviewed measurements and the published snapshot.
OSUbuntu 24.04.5 LTS
Architecturex86_64
Methodpilot-1
Deployments1
Window66 min
report.json
Read the full methodologyReviewed, sanitized snapshot: every run, the environment record and all limitations. Raw intake logs remain private.
One deployment describes this report, not every server a provider operates.
A 66 min test window does not establish 24-hour consistency or long-term reliability.
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 | Bangalore, IN (BLR) · detected |
| Plan | voc-c-4c-8gb-75s-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 | 8b66604f20ca195b8e22af7875db999d934adfee73f97e55d0cc7841e8c41d83 |
| Started | 2026-10-17T11:42:59.620Z |
| Finished | 2026-10-17T12:48:45.402Z |
| 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 | 1,333 events/s |
| CPU 4 thread(s) · repetition 1 | passed | Events per second | 5,317 events/s |
| CPU 1 thread(s) · repetition 2 | passed | Events per second | 1,333 events/s |
| CPU 4 thread(s) · repetition 2 | passed | Events per second | 5,299 events/s |
| CPU 1 thread(s) · repetition 3 | passed | Events per second | 1,312 events/s |
| CPU 4 thread(s) · repetition 3 | passed | Events per second | 5,238 events/s |
| gzip fixed corpus · repetition 1 | passed | Compression input throughput | 160.9 MiB/s |
Memory bandwidth
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Memory read · repetition 1 | passed | Bandwidth | 13,196 MiB/s |
| Memory write · repetition 1 | passed | Bandwidth | 11,685 MiB/s |
| Memory read · repetition 2 | passed | Bandwidth | 13,023 MiB/s |
| Memory write · repetition 2 | passed | Bandwidth | 12,513 MiB/s |
| Memory read · repetition 3 | passed | Bandwidth | 12,412 MiB/s |
| Memory write · repetition 3 | passed | Bandwidth | 12,740 MiB/s |
Disk performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Disk write · repetition 1 | passed | write bandwidth | 2,523 MB/s |
| Disk write · repetition 1 | passed | write operations | 2,406 IOPS |
| Disk write · repetition 1 | passed | write p50 latency | 9,372 µs |
| Disk write · repetition 1 | passed | write p95 latency | 35,914 µs |
| Disk write · repetition 1 | passed | write p99 latency | 85,459 µs |
| Disk read · repetition 1 | passed | read bandwidth | 3,515 MB/s |
| Disk read · repetition 1 | passed | read operations | 3,352 IOPS |
| Disk read · repetition 1 | passed | read p50 latency | 7,111 µs |
| Disk read · repetition 1 | passed | read p95 latency | 27,394 µs |
| Disk read · repetition 1 | passed | read p99 latency | 78,119 µs |
| Disk randwrite · repetition 1 | passed | write bandwidth | 335.3 MB/s |
| Disk randwrite · repetition 1 | passed | write operations | 81,867 IOPS |
| Disk randwrite · repetition 1 | passed | write p50 latency | 358.4 µs |
| Disk randwrite · repetition 1 | passed | write p95 latency | 577.5 µs |
| Disk randwrite · repetition 1 | passed | write p99 latency | 741.4 µs |
| Disk randread · repetition 1 | passed | read bandwidth | 378.2 MB/s |
| Disk randread · repetition 1 | passed | read operations | 92,339 IOPS |
| Disk randread · repetition 1 | passed | read p50 latency | 329.7 µs |
| Disk randread · repetition 1 | passed | read p95 latency | 473.1 µs |
| Disk randread · repetition 1 | passed | read p99 latency | 577.5 µs |
| Disk randrw · repetition 1 | passed | read bandwidth | 237.9 MB/s |
| Disk randrw · repetition 1 | passed | read operations | 58,072 IOPS |
| Disk randrw · repetition 1 | passed | read p50 latency | 346.1 µs |
| Disk randrw · repetition 1 | passed | read p95 latency | 593.9 µs |
| Disk randrw · repetition 1 | passed | read p99 latency | 872.4 µs |
| Disk randrw · repetition 1 | passed | write bandwidth | 102.0 MB/s |
| Disk randrw · repetition 1 | passed | write operations | 24,902 IOPS |
| Disk randrw · repetition 1 | passed | write p50 latency | 337.9 µs |
| Disk randrw · repetition 1 | passed | write p95 latency | 626.7 µs |
| Disk randrw · repetition 1 | passed | write p99 latency | 946.2 µs |
| Disk write · repetition 2 | passed | write bandwidth | 2,408 MB/s |
| Disk write · repetition 2 | passed | write operations | 2,297 IOPS |
| Disk write · repetition 2 | passed | write p50 latency | 9,765 µs |
| Disk write · repetition 2 | passed | write p95 latency | 38,011 µs |
| Disk write · repetition 2 | passed | write p99 latency | 84,410 µs |
| Disk read · repetition 2 | passed | read bandwidth | 3,380 MB/s |
| Disk read · repetition 2 | passed | read operations | 3,223 IOPS |
| Disk read · repetition 2 | passed | read p50 latency | 7,569 µs |
| Disk read · repetition 2 | passed | read p95 latency | 29,491 µs |
| Disk read · repetition 2 | passed | read p99 latency | 67,633 µs |
| Disk randwrite · repetition 2 | passed | write bandwidth | 323.3 MB/s |
| Disk randwrite · repetition 2 | passed | write operations | 78,941 IOPS |
| Disk randwrite · repetition 2 | passed | write p50 latency | 370.7 µs |
| Disk randwrite · repetition 2 | passed | write p95 latency | 593.9 µs |
| Disk randwrite · repetition 2 | passed | write p99 latency | 774.1 µs |
| Disk randread · repetition 2 | passed | read bandwidth | 390.0 MB/s |
| Disk randread · repetition 2 | passed | read operations | 95,224 IOPS |
| Disk randread · repetition 2 | passed | read p50 latency | 317.4 µs |
| Disk randread · repetition 2 | passed | read p95 latency | 452.6 µs |
| Disk randread · repetition 2 | passed | read p99 latency | 544.8 µs |
| Disk randrw · repetition 2 | passed | read bandwidth | 239.3 MB/s |
| Disk randrw · repetition 2 | passed | read operations | 58,417 IOPS |
| Disk randrw · repetition 2 | passed | read p50 latency | 342.0 µs |
| Disk randrw · repetition 2 | passed | read p95 latency | 593.9 µs |
| Disk randrw · repetition 2 | passed | read p99 latency | 929.8 µs |
| Disk randrw · repetition 2 | passed | write bandwidth | 102.6 MB/s |
| Disk randrw · repetition 2 | passed | write operations | 25,048 IOPS |
| Disk randrw · repetition 2 | passed | write p50 latency | 333.8 µs |
| Disk randrw · repetition 2 | passed | write p95 latency | 626.7 µs |
| Disk randrw · repetition 2 | passed | write p99 latency | 970.8 µs |
| Disk write · repetition 3 | passed | write bandwidth | 2,410 MB/s |
| Disk write · repetition 3 | passed | write operations | 2,299 IOPS |
| Disk write · repetition 3 | passed | write p50 latency | 9,372 µs |
| Disk write · repetition 3 | passed | write p95 latency | 39,059 µs |
| Disk write · repetition 3 | passed | write p99 latency | 88,605 µs |
| Disk read · repetition 3 | passed | read bandwidth | 3,421 MB/s |
| Disk read · repetition 3 | passed | read operations | 3,262 IOPS |
| Disk read · repetition 3 | passed | read p50 latency | 7,700 µs |
| Disk read · repetition 3 | passed | read p95 latency | 23,462 µs |
| Disk read · repetition 3 | passed | read p99 latency | 64,225 µs |
| Disk randwrite · repetition 3 | passed | write bandwidth | 325.1 MB/s |
| Disk randwrite · repetition 3 | passed | write operations | 79,365 IOPS |
| Disk randwrite · repetition 3 | passed | write p50 latency | 366.6 µs |
| Disk randwrite · repetition 3 | passed | write p95 latency | 602.1 µs |
| Disk randwrite · repetition 3 | passed | write p99 latency | 798.7 µs |
| Disk randread · repetition 3 | passed | read bandwidth | 365.4 MB/s |
| Disk randread · repetition 3 | passed | read operations | 89,219 IOPS |
| Disk randread · repetition 3 | passed | read p50 latency | 342.0 µs |
| Disk randread · repetition 3 | passed | read p95 latency | 497.7 µs |
| Disk randread · repetition 3 | passed | read p99 latency | 618.5 µs |
| Disk randrw · repetition 3 | passed | read bandwidth | 238.5 MB/s |
| Disk randrw · repetition 3 | passed | read operations | 58,223 IOPS |
| Disk randrw · repetition 3 | passed | read p50 latency | 358.4 µs |
| Disk randrw · repetition 3 | passed | read p95 latency | 577.5 µs |
| Disk randrw · repetition 3 | passed | read p99 latency | 872.4 µs |
| Disk randrw · repetition 3 | passed | write bandwidth | 102.2 MB/s |
| Disk randrw · repetition 3 | passed | write operations | 24,963 IOPS |
| Disk randrw · repetition 3 | passed | write p50 latency | 329.7 µs |
| Disk randrw · repetition 3 | passed | write p95 latency | 585.7 µs |
| Disk randrw · repetition 3 | passed | write p99 latency | 831.5 µs |
Network performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Network upload endpoint 1 · repetition 1 | passed | Sender throughput | 100.2 Mbit/s |
| Network upload endpoint 1 · repetition 1 | passed | Receiver throughput | 97.4 Mbit/s |
| Network download endpoint 1 · repetition 1 | passed | Sender throughput | 95.1 Mbit/s |
| Network download endpoint 1 · repetition 1 | passed | Receiver throughput | 92.3 Mbit/s |
| Latency endpoint 1 · repetition 1 | passed | Round-trip mean | 152.7 ms |
| Network upload endpoint 2 · repetition 1 | passed | Sender throughput | 100.2 Mbit/s |
| Network upload endpoint 2 · repetition 1 | passed | Receiver throughput | 95.5 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Sender throughput | 100.1 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Receiver throughput | 99.9 Mbit/s |
| Latency endpoint 2 · repetition 1 | passed | Round-trip mean | 247.7 ms |
PostgreSQL performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| PostgreSQL memory dataset · repetition 1 | passed | Transactions | 2,670 tx/s |
| PostgreSQL memory dataset · repetition 1 | passed | Average latency | 1.50 ms |
| PostgreSQL memory dataset · repetition 2 | passed | Transactions | 2,680 tx/s |
| PostgreSQL memory dataset · repetition 2 | passed | Average latency | 1.49 ms |
| PostgreSQL memory dataset · repetition 3 | passed | Transactions | 2,586 tx/s |
| PostgreSQL memory dataset · repetition 3 | passed | Average latency | 1.54 ms |
| PostgreSQL storage dataset · repetition 1 | passed | Transactions | 1,989 tx/s |
| PostgreSQL storage dataset · repetition 1 | passed | Average latency | 2.01 ms |
| PostgreSQL storage dataset · repetition 2 | passed | Transactions | 1,920 tx/s |
| PostgreSQL storage dataset · repetition 2 | passed | Average latency | 2.08 ms |
| PostgreSQL storage dataset · repetition 3 | passed | Transactions | 1,862 tx/s |
| PostgreSQL storage dataset · repetition 3 | passed | Average latency | 2.15 ms |
Consistency over time
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| 24-hour consistency · repetition 1 | skipped | No measured score | Not measured |