Vultr voc-c-4c-8gb-75s-amd
The complete benchmark report. Every workload, in one place.
All values below are medians of passed runs unless stated otherwise.
CPU performance
sysbench 1.0.20 prime workload · 1 thread and all 4 vCPUs.
Single thread
All 4 vCPUs
- 1 thread2,013
- 4 threads8,009
Median of 3 passed runs of about 30 seconds per thread count.
gzip fixed corpus · compression input throughput 291.0 MiB/s · single run.
Memory bandwidth
sysbench 1.0.20 memory · sequential read and write operations.
- Read37,671
- Write29,682
- CopyNot measured
Median of 3 passed runs of about 30 seconds per operation. The copy workload is deferred in this methodology.
Disk performance
fio 3.36 · direct I/O · sequential, random and mixed jobs measured separately.
| Workload | Throughput | p95 latency |
|---|---|---|
| Sequential read | 1,856 MB/s | 46,399 µs |
| Sequential write | 4,174 MB/s | 10,420 µs |
| Random read | 266,391 IOPS | 214.0 µs |
| Random write | 352,724 IOPS | 154.6 µs |
| Random mix · read | 190,456 IOPS | 259.1 µs |
| Random mix · write | 81,636 IOPS | 114.2 µs |
Median of 3 passed runs of about 30 seconds per job. The mixed job's reads and writes are listed separately.
Network performance
Source: Silicon Valley, US · LibreSpeed CLI 1.0.14 · public HTTPS destinations.
| Destination | Download | Upload | HTTP latency | HTTP jitter | Loss |
|---|---|---|---|---|---|
| Frankfurt, Germany (Clouvider) 17/10/2026, 17:55:24 UTC · Separate VM network-only run · View reviewed run | 508.0 Mbit/s | 102.9 Mbit/s | 140.5 ms | 0.07 ms | Not measured |
| New York, United States (2) (Clouvider) 17/10/2026, 17:55:24 UTC · Separate VM network-only run · View reviewed run | 1,187 Mbit/s | 254.0 Mbit/s | 66.0 ms | 1.30 ms | Not measured |
One 10-second download and upload per destination, three concurrent streams, IPv4 over HTTPS, with no configured rate limit. HTTP latency and jitter are application-level measurements; packet loss was not measured. These paths do not establish maximum link capacity.
Latest matching published internet speed test for this provider, plan, recorded region and resource class, taken on a separate VM. These values are not measurements from this full benchmark deployment. The original capped iperf path checks remain under Evidence; their values and test window are unchanged.
Wall-clock reliability was not verified; recorded timestamps should be treated with that limitation.
Browse all network speed tests.
12 GiB outbound-interface abort threshold is sampled; kernel buffering and sampling may overshoot. Retained counters disclose actual observed bytes.
PostgreSQL performance
PostgreSQL 16.15 · pgbench · in-memory and storage-bound datasets.
| Dataset profile | Transactions / sec | Average latency | Passed runs |
|---|---|---|---|
| In memory | 10,689 | 0.37 ms | 3 of 3 passed |
| Storage-bound | 8,214 | 0.49 ms | 3 of 3 passed |
Median of 3 passed runs of about 30 seconds per dataset. Latency percentiles were not measured.
Running PostgreSQL yourself? Read our PostgreSQL tutorials.
Consistency across runs
One deployment · repeated runs inside the recorded test window.
Workload skipped · No measured score. This report covers a 58 min test window, so no time series exists and none is drawn.
| Repetition | CPU 1 thread | Memory read | Random read | PostgreSQL |
|---|---|---|---|---|
| 1 | 2,008 events/s | 38,270 MiB/s | 266,391 IOPS | 9,690 tx/s |
| 2 | 2,016 events/s | 37,622 MiB/s | 297,138 IOPS | 10,689 tx/s |
| 3 | 2,013 events/s | 37,671 MiB/s | 250,013 IOPS | 12,387 tx/s |
Individual runs, not medians. PostgreSQL uses the in-memory dataset. Spread within one test window does not establish long-term consistency.
Inspect the evidence.
Recorded environment, reviewed measurements and the published snapshot.
Reviewed, 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 58 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 | Silicon Valley, US (SJC) · detected |
| Plan | voc-c-4c-8gb-75s-amd · supplied |
| List price | $80.00 / month · $0.110 / hour. List price on 17 Oct 2026, USD before tax. Source: Vultr plan catalog (API). |
| CPU | AMD EPYC-Turin 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 | 5e3d02236dfacc1f903efb3f73808c3d2d21dbadc2992ec63aa342187f5af6c3 |
| Started | 2026-10-17T11:42:16.728Z |
| Finished | 2026-10-17T12:40:34.743Z |
| Execution status | completed |
Historical capped network path checks
Original full benchmark deployment · 17 Oct 2026. These controlled iperf path checks used a 100 Mbit/s rate setting and do not measure internet speed or maximum link capacity. RTT is the probe mean; jitter and packet loss were not measured. The original report JSON retains these measurements.
| Controlled destination | Download | Upload | RTT | Jitter | Loss |
|---|---|---|---|---|---|
| London endpoint 1 | 99.9 Mbit/s | 97.6 Mbit/s | 131.8 ms | — | — |
| London endpoint 2 | 99.9 Mbit/s | 97.5 Mbit/s | 136.2 ms | — | — |
Every measured repetition and outcome
CPU performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| CPU 1 thread(s) · repetition 1 | passed | Events per second | 2,008 events/s |
| CPU 4 thread(s) · repetition 1 | passed | Events per second | 8,016 events/s |
| CPU 1 thread(s) · repetition 2 | passed | Events per second | 2,016 events/s |
| CPU 4 thread(s) · repetition 2 | passed | Events per second | 8,009 events/s |
| CPU 1 thread(s) · repetition 3 | passed | Events per second | 2,013 events/s |
| CPU 4 thread(s) · repetition 3 | passed | Events per second | 8,002 events/s |
| gzip fixed corpus · repetition 1 | passed | Compression input throughput | 291.0 MiB/s |
Memory bandwidth
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Memory read · repetition 1 | passed | Bandwidth | 38,270 MiB/s |
| Memory write · repetition 1 | passed | Bandwidth | 29,682 MiB/s |
| Memory read · repetition 2 | passed | Bandwidth | 37,622 MiB/s |
| Memory write · repetition 2 | passed | Bandwidth | 30,393 MiB/s |
| Memory read · repetition 3 | passed | Bandwidth | 37,671 MiB/s |
| Memory write · repetition 3 | passed | Bandwidth | 29,553 MiB/s |
Disk performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Disk write · repetition 1 | passed | write bandwidth | 4,179 MB/s |
| Disk write · repetition 1 | passed | write operations | 3,986 IOPS |
| Disk write · repetition 1 | passed | write p50 latency | 7,700 µs |
| Disk write · repetition 1 | passed | write p95 latency | 10,289 µs |
| Disk write · repetition 1 | passed | write p99 latency | 12,517 µs |
| Disk read · repetition 1 | passed | read bandwidth | 1,856 MB/s |
| Disk read · repetition 1 | passed | read operations | 1,770 IOPS |
| Disk read · repetition 1 | passed | read p50 latency | 15,139 µs |
| Disk read · repetition 1 | passed | read p95 latency | 46,399 µs |
| Disk read · repetition 1 | passed | read p99 latency | 53,740 µs |
| Disk randwrite · repetition 1 | passed | write bandwidth | 1,476 MB/s |
| Disk randwrite · repetition 1 | passed | write operations | 360,371 IOPS |
| Disk randwrite · repetition 1 | passed | write p50 latency | 79.4 µs |
| Disk randwrite · repetition 1 | passed | write p95 latency | 154.6 µs |
| Disk randwrite · repetition 1 | passed | write p99 latency | 193.5 µs |
| Disk randread · repetition 1 | passed | read bandwidth | 1,091 MB/s |
| Disk randread · repetition 1 | passed | read operations | 266,391 IOPS |
| Disk randread · repetition 1 | passed | read p50 latency | 106.0 µs |
| Disk randread · repetition 1 | passed | read p95 latency | 214.0 µs |
| Disk randread · repetition 1 | passed | read p99 latency | 301.1 µs |
| Disk randrw · repetition 1 | passed | read bandwidth | 780.1 MB/s |
| Disk randrw · repetition 1 | passed | read operations | 190,456 IOPS |
| Disk randrw · repetition 1 | passed | read p50 latency | 111.1 µs |
| Disk randrw · repetition 1 | passed | read p95 latency | 288.8 µs |
| Disk randrw · repetition 1 | passed | read p99 latency | 536.6 µs |
| Disk randrw · repetition 1 | passed | write bandwidth | 334.4 MB/s |
| Disk randrw · repetition 1 | passed | write operations | 81,636 IOPS |
| Disk randrw · repetition 1 | passed | write p50 latency | 63.7 µs |
| Disk randrw · repetition 1 | passed | write p95 latency | 103.9 µs |
| Disk randrw · repetition 1 | passed | write p99 latency | 146.4 µs |
| Disk write · repetition 2 | passed | write bandwidth | 4,174 MB/s |
| Disk write · repetition 2 | passed | write operations | 3,980 IOPS |
| Disk write · repetition 2 | passed | write p50 latency | 7,700 µs |
| Disk write · repetition 2 | passed | write p95 latency | 10,420 µs |
| Disk write · repetition 2 | passed | write p99 latency | 12,517 µs |
| Disk read · repetition 2 | passed | read bandwidth | 10,722 MB/s |
| Disk read · repetition 2 | passed | read operations | 10,225 IOPS |
| Disk read · repetition 2 | passed | read p50 latency | 2,867 µs |
| Disk read · repetition 2 | passed | read p95 latency | 6,783 µs |
| Disk read · repetition 2 | passed | read p99 latency | 10,420 µs |
| Disk randwrite · repetition 2 | passed | write bandwidth | 1,357 MB/s |
| Disk randwrite · repetition 2 | passed | write operations | 331,220 IOPS |
| Disk randwrite · repetition 2 | passed | write p50 latency | 86.5 µs |
| Disk randwrite · repetition 2 | passed | write p95 latency | 162.8 µs |
| Disk randwrite · repetition 2 | passed | write p99 latency | 193.5 µs |
| Disk randread · repetition 2 | passed | read bandwidth | 1,217 MB/s |
| Disk randread · repetition 2 | passed | read operations | 297,138 IOPS |
| Disk randread · repetition 2 | passed | read p50 latency | 102.9 µs |
| Disk randread · repetition 2 | passed | read p95 latency | 146.4 µs |
| Disk randread · repetition 2 | passed | read p99 latency | 173.1 µs |
| Disk randrw · repetition 2 | passed | read bandwidth | 823.6 MB/s |
| Disk randrw · repetition 2 | passed | read operations | 201,072 IOPS |
| Disk randrw · repetition 2 | passed | read p50 latency | 106.0 µs |
| Disk randrw · repetition 2 | passed | read p95 latency | 259.1 µs |
| Disk randrw · repetition 2 | passed | read p99 latency | 473.1 µs |
| Disk randrw · repetition 2 | passed | write bandwidth | 353.0 MB/s |
| Disk randrw · repetition 2 | passed | write operations | 86,188 IOPS |
| Disk randrw · repetition 2 | passed | write p50 latency | 64.3 µs |
| Disk randrw · repetition 2 | passed | write p95 latency | 114.2 µs |
| Disk randrw · repetition 2 | passed | write p99 latency | 156.7 µs |
| Disk write · repetition 3 | passed | write bandwidth | 4,166 MB/s |
| Disk write · repetition 3 | passed | write operations | 3,973 IOPS |
| Disk write · repetition 3 | passed | write p50 latency | 7,700 µs |
| Disk write · repetition 3 | passed | write p95 latency | 10,420 µs |
| Disk write · repetition 3 | passed | write p99 latency | 12,517 µs |
| Disk read · repetition 3 | passed | read bandwidth | 1,393 MB/s |
| Disk read · repetition 3 | passed | read operations | 1,328 IOPS |
| Disk read · repetition 3 | passed | read p50 latency | 18,219 µs |
| Disk read · repetition 3 | passed | read p95 latency | 56,361 µs |
| Disk read · repetition 3 | passed | read p99 latency | 66,847 µs |
| Disk randwrite · repetition 3 | passed | write bandwidth | 1,445 MB/s |
| Disk randwrite · repetition 3 | passed | write operations | 352,724 IOPS |
| Disk randwrite · repetition 3 | passed | write p50 latency | 81.4 µs |
| Disk randwrite · repetition 3 | passed | write p95 latency | 152.6 µs |
| Disk randwrite · repetition 3 | passed | write p99 latency | 193.5 µs |
| Disk randread · repetition 3 | passed | read bandwidth | 1,024 MB/s |
| Disk randread · repetition 3 | passed | read operations | 250,013 IOPS |
| Disk randread · repetition 3 | passed | read p50 latency | 101.9 µs |
| Disk randread · repetition 3 | passed | read p95 latency | 276.5 µs |
| Disk randread · repetition 3 | passed | read p99 latency | 399.4 µs |
| Disk randrw · repetition 3 | passed | read bandwidth | 765.4 MB/s |
| Disk randrw · repetition 3 | passed | read operations | 186,862 IOPS |
| Disk randrw · repetition 3 | passed | read p50 latency | 116.2 µs |
| Disk randrw · repetition 3 | passed | read p95 latency | 259.1 µs |
| Disk randrw · repetition 3 | passed | read p99 latency | 473.1 µs |
| Disk randrw · repetition 3 | passed | write bandwidth | 328.1 MB/s |
| Disk randrw · repetition 3 | passed | write operations | 80,103 IOPS |
| Disk randrw · repetition 3 | passed | write p50 latency | 73.2 µs |
| Disk randrw · repetition 3 | passed | write p95 latency | 119.3 µs |
| Disk randrw · repetition 3 | passed | write p99 latency | 164.9 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 | 97.6 Mbit/s |
| Network download endpoint 1 · repetition 1 | passed | Sender throughput | 100.0 Mbit/s |
| Network download endpoint 1 · repetition 1 | passed | Receiver throughput | 99.9 Mbit/s |
| Latency endpoint 1 · repetition 1 | passed | Round-trip mean | 131.8 ms |
| Network upload endpoint 2 · repetition 1 | passed | Sender throughput | 100.2 Mbit/s |
| Network upload endpoint 2 · repetition 1 | passed | Receiver throughput | 97.5 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 | 136.2 ms |
PostgreSQL performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| PostgreSQL memory dataset · repetition 1 | passed | Transactions | 9,690 tx/s |
| PostgreSQL memory dataset · repetition 1 | passed | Average latency | 0.41 ms |
| PostgreSQL memory dataset · repetition 2 | passed | Transactions | 10,689 tx/s |
| PostgreSQL memory dataset · repetition 2 | passed | Average latency | 0.37 ms |
| PostgreSQL memory dataset · repetition 3 | passed | Transactions | 12,387 tx/s |
| PostgreSQL memory dataset · repetition 3 | passed | Average latency | 0.32 ms |
| PostgreSQL storage dataset · repetition 1 | passed | Transactions | 8,353 tx/s |
| PostgreSQL storage dataset · repetition 1 | passed | Average latency | 0.48 ms |
| PostgreSQL storage dataset · repetition 2 | passed | Transactions | 8,214 tx/s |
| PostgreSQL storage dataset · repetition 2 | passed | Average latency | 0.49 ms |
| PostgreSQL storage dataset · repetition 3 | passed | Transactions | 8,012 tx/s |
| PostgreSQL storage dataset · repetition 3 | passed | Average latency | 0.50 ms |
Consistency over time
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| 24-hour consistency · repetition 1 | skipped | No measured score | Not measured |