Vultr vc2-4c-8gb
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 thread403.0
- 4 threads1,561
Median of 3 passed runs of about 30 seconds per thread count.
gzip fixed corpus · compression input throughput 180.7 MiB/s · single run.
Memory bandwidth
sysbench 1.0.20 memory · sequential read and write operations.
- Read7,019
- Write7,077
- 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 | 551.2 MB/s | 68,682 µs |
| Sequential write | 521.1 MB/s | 77,070 µs |
| Random read | 76,094 IOPS | 569.3 µs |
| Random write | 50,360 IOPS | 741.4 µs |
| Random mix · read | 44,198 IOPS | 1,401 µs |
| Random mix · write | 18,957 IOPS | 577.5 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: London, UK · LibreSpeed CLI 1.0.14 · public HTTPS destinations.
| Destination | Download | Upload | HTTP latency | HTTP jitter | Loss |
|---|---|---|---|---|---|
| Frankfurt, Germany (Clouvider) 17/10/2026, 17:11:06 UTC · Separate VM network-only run · View reviewed run | 2,513 Mbit/s | 1,033 Mbit/s | 12.5 ms | 0.07 ms | Not measured |
| New York, United States (2) (Clouvider) 17/10/2026, 17:11:06 UTC · Separate VM network-only run · View reviewed run | 1,149 Mbit/s | 227.1 Mbit/s | 71.9 ms | 0.09 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.
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 | 3,090 | 1.29 ms | 3 of 3 passed |
| Storage-bound | 2,530 | 1.58 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 41 min test window, so no time series exists and none is drawn.
| Repetition | CPU 1 thread | Memory read | Random read | PostgreSQL |
|---|---|---|---|---|
| 1 | 403.0 events/s | 7,098 MiB/s | 75,926 IOPS | 3,136 tx/s |
| 2 | 401.1 events/s | 7,019 MiB/s | 76,642 IOPS | 3,090 tx/s |
| 3 | 413.1 events/s | 6,965 MiB/s | 76,094 IOPS | 3,086 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 41 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 | London, UK (LHR) · detected |
| Plan | vc2-4c-8gb · supplied |
| List price | $40.00 / month · $0.055 / hour. List price on 17 Oct 2026, USD before tax. Source: Vultr plan catalog (API). |
| CPU | Intel Xeon Processor (Skylake, IBRS) |
| 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 | 02cc433ad56706c6dabc7d4e5574432106311860841b52d5650a23f28c636338 |
| Started | 2026-10-17T11:42:17.000Z |
| Finished | 2026-10-17T12:23:42.816Z |
| 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 | 100.1 Mbit/s | 100.1 Mbit/s | 3.89 ms | — | — |
| London endpoint 2 | 100.1 Mbit/s | 100.1 Mbit/s | 0.36 ms | — | — |
Every measured repetition and outcome
CPU performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| CPU 1 thread(s) · repetition 1 | passed | Events per second | 403.0 events/s |
| CPU 4 thread(s) · repetition 1 | passed | Events per second | 1,578 events/s |
| CPU 1 thread(s) · repetition 2 | passed | Events per second | 401.1 events/s |
| CPU 4 thread(s) · repetition 2 | passed | Events per second | 1,541 events/s |
| CPU 1 thread(s) · repetition 3 | passed | Events per second | 413.1 events/s |
| CPU 4 thread(s) · repetition 3 | passed | Events per second | 1,561 events/s |
| gzip fixed corpus · repetition 1 | passed | Compression input throughput | 180.7 MiB/s |
Memory bandwidth
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Memory read · repetition 1 | passed | Bandwidth | 7,098 MiB/s |
| Memory write · repetition 1 | passed | Bandwidth | 7,037 MiB/s |
| Memory read · repetition 2 | passed | Bandwidth | 7,019 MiB/s |
| Memory write · repetition 2 | passed | Bandwidth | 7,077 MiB/s |
| Memory read · repetition 3 | passed | Bandwidth | 6,965 MiB/s |
| Memory write · repetition 3 | passed | Bandwidth | 7,124 MiB/s |
Disk performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Disk write · repetition 1 | passed | write bandwidth | 509.4 MB/s |
| Disk write · repetition 1 | passed | write operations | 485.8 IOPS |
| Disk write · repetition 1 | passed | write p50 latency | 63,177 µs |
| Disk write · repetition 1 | passed | write p95 latency | 80,216 µs |
| Disk write · repetition 1 | passed | write p99 latency | 95,945 µs |
| Disk read · repetition 1 | passed | read bandwidth | 524.8 MB/s |
| Disk read · repetition 1 | passed | read operations | 500.5 IOPS |
| Disk read · repetition 1 | passed | read p50 latency | 60,031 µs |
| Disk read · repetition 1 | passed | read p95 latency | 86,508 µs |
| Disk read · repetition 1 | passed | read p99 latency | 96,993 µs |
| Disk randwrite · repetition 1 | passed | write bandwidth | 209.2 MB/s |
| Disk randwrite · repetition 1 | passed | write operations | 51,073 IOPS |
| Disk randwrite · repetition 1 | passed | write p50 latency | 419.8 µs |
| Disk randwrite · repetition 1 | passed | write p95 latency | 733.2 µs |
| Disk randwrite · repetition 1 | passed | write p99 latency | 7,832 µs |
| Disk randread · repetition 1 | passed | read bandwidth | 311.0 MB/s |
| Disk randread · repetition 1 | passed | read operations | 75,926 IOPS |
| Disk randread · repetition 1 | passed | read p50 latency | 403.5 µs |
| Disk randread · repetition 1 | passed | read p95 latency | 569.3 µs |
| Disk randread · repetition 1 | passed | read p99 latency | 684.0 µs |
| Disk randrw · repetition 1 | passed | read bandwidth | 181.0 MB/s |
| Disk randrw · repetition 1 | passed | read operations | 44,198 IOPS |
| Disk randrw · repetition 1 | passed | read p50 latency | 423.9 µs |
| Disk randrw · repetition 1 | passed | read p95 latency | 1,401 µs |
| Disk randrw · repetition 1 | passed | read p99 latency | 2,089 µs |
| Disk randrw · repetition 1 | passed | write bandwidth | 77.6 MB/s |
| Disk randrw · repetition 1 | passed | write operations | 18,957 IOPS |
| Disk randrw · repetition 1 | passed | write p50 latency | 366.6 µs |
| Disk randrw · repetition 1 | passed | write p95 latency | 577.5 µs |
| Disk randrw · repetition 1 | passed | write p99 latency | 806.9 µs |
| Disk write · repetition 2 | passed | write bandwidth | 521.1 MB/s |
| Disk write · repetition 2 | passed | write operations | 497.0 IOPS |
| Disk write · repetition 2 | passed | write p50 latency | 62,128 µs |
| Disk write · repetition 2 | passed | write p95 latency | 77,070 µs |
| Disk write · repetition 2 | passed | write p99 latency | 91,750 µs |
| Disk read · repetition 2 | passed | read bandwidth | 551.2 MB/s |
| Disk read · repetition 2 | passed | read operations | 525.7 IOPS |
| Disk read · repetition 2 | passed | read p50 latency | 60,031 µs |
| Disk read · repetition 2 | passed | read p95 latency | 68,682 µs |
| Disk read · repetition 2 | passed | read p99 latency | 85,459 µs |
| Disk randwrite · repetition 2 | passed | write bandwidth | 206.3 MB/s |
| Disk randwrite · repetition 2 | passed | write operations | 50,360 IOPS |
| Disk randwrite · repetition 2 | passed | write p50 latency | 428.0 µs |
| Disk randwrite · repetition 2 | passed | write p95 latency | 782.3 µs |
| Disk randwrite · repetition 2 | passed | write p99 latency | 8,094 µs |
| Disk randread · repetition 2 | passed | read bandwidth | 313.9 MB/s |
| Disk randread · repetition 2 | passed | read operations | 76,642 IOPS |
| Disk randread · repetition 2 | passed | read p50 latency | 399.4 µs |
| Disk randread · repetition 2 | passed | read p95 latency | 569.3 µs |
| Disk randread · repetition 2 | passed | read p99 latency | 692.2 µs |
| Disk randrw · repetition 2 | passed | read bandwidth | 180.2 MB/s |
| Disk randrw · repetition 2 | passed | read operations | 44,003 IOPS |
| Disk randrw · repetition 2 | passed | read p50 latency | 419.8 µs |
| Disk randrw · repetition 2 | passed | read p95 latency | 1,401 µs |
| Disk randrw · repetition 2 | passed | read p99 latency | 2,114 µs |
| Disk randrw · repetition 2 | passed | write bandwidth | 77.3 MB/s |
| Disk randrw · repetition 2 | passed | write operations | 18,872 IOPS |
| Disk randrw · repetition 2 | passed | write p50 latency | 362.5 µs |
| Disk randrw · repetition 2 | passed | write p95 latency | 577.5 µs |
| Disk randrw · repetition 2 | passed | write p99 latency | 1,073 µs |
| Disk write · repetition 3 | passed | write bandwidth | 522.4 MB/s |
| Disk write · repetition 3 | passed | write operations | 498.2 IOPS |
| Disk write · repetition 3 | passed | write p50 latency | 62,128 µs |
| Disk write · repetition 3 | passed | write p95 latency | 74,973 µs |
| Disk write · repetition 3 | passed | write p99 latency | 90,702 µs |
| Disk read · repetition 3 | passed | read bandwidth | 555.1 MB/s |
| Disk read · repetition 3 | passed | read operations | 529.3 IOPS |
| Disk read · repetition 3 | passed | read p50 latency | 60,031 µs |
| Disk read · repetition 3 | passed | read p95 latency | 68,682 µs |
| Disk read · repetition 3 | passed | read p99 latency | 83,362 µs |
| Disk randwrite · repetition 3 | passed | write bandwidth | 205.9 MB/s |
| Disk randwrite · repetition 3 | passed | write operations | 50,266 IOPS |
| Disk randwrite · repetition 3 | passed | write p50 latency | 407.6 µs |
| Disk randwrite · repetition 3 | passed | write p95 latency | 741.4 µs |
| Disk randwrite · repetition 3 | passed | write p99 latency | 9,372 µs |
| Disk randread · repetition 3 | passed | read bandwidth | 311.7 MB/s |
| Disk randread · repetition 3 | passed | read operations | 76,094 IOPS |
| Disk randread · repetition 3 | passed | read p50 latency | 403.5 µs |
| Disk randread · repetition 3 | passed | read p95 latency | 577.5 µs |
| Disk randread · repetition 3 | passed | read p99 latency | 692.2 µs |
| Disk randrw · repetition 3 | passed | read bandwidth | 182.1 MB/s |
| Disk randrw · repetition 3 | passed | read operations | 44,465 IOPS |
| Disk randrw · repetition 3 | passed | read p50 latency | 419.8 µs |
| Disk randrw · repetition 3 | passed | read p95 latency | 1,401 µs |
| Disk randrw · repetition 3 | passed | read p99 latency | 2,089 µs |
| Disk randrw · repetition 3 | passed | write bandwidth | 78.1 MB/s |
| Disk randrw · repetition 3 | passed | write operations | 19,073 IOPS |
| Disk randrw · repetition 3 | passed | write p50 latency | 354.3 µs |
| Disk randrw · repetition 3 | passed | write p95 latency | 569.3 µs |
| Disk randrw · repetition 3 | passed | write p99 latency | 864.3 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 | 100.1 Mbit/s |
| Network download endpoint 1 · repetition 1 | passed | Sender throughput | 100.1 Mbit/s |
| Network download endpoint 1 · repetition 1 | passed | Receiver throughput | 100.1 Mbit/s |
| Latency endpoint 1 · repetition 1 | passed | Round-trip mean | 3.89 ms |
| Network upload endpoint 2 · repetition 1 | passed | Sender throughput | 100.2 Mbit/s |
| Network upload endpoint 2 · repetition 1 | passed | Receiver throughput | 100.1 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Sender throughput | 100.1 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Receiver throughput | 100.1 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 | 3,136 tx/s |
| PostgreSQL memory dataset · repetition 1 | passed | Average latency | 1.27 ms |
| PostgreSQL memory dataset · repetition 2 | passed | Transactions | 3,090 tx/s |
| PostgreSQL memory dataset · repetition 2 | passed | Average latency | 1.29 ms |
| PostgreSQL memory dataset · repetition 3 | passed | Transactions | 3,086 tx/s |
| PostgreSQL memory dataset · repetition 3 | passed | Average latency | 1.29 ms |
| PostgreSQL storage dataset · repetition 1 | passed | Transactions | 2,527 tx/s |
| PostgreSQL storage dataset · repetition 1 | passed | Average latency | 1.58 ms |
| PostgreSQL storage dataset · repetition 2 | passed | Transactions | 2,530 tx/s |
| PostgreSQL storage dataset · repetition 2 | passed | Average latency | 1.58 ms |
| PostgreSQL storage dataset · repetition 3 | passed | Transactions | 2,581 tx/s |
| PostgreSQL storage dataset · repetition 3 | passed | Average latency | 1.55 ms |
Consistency over time
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| 24-hour consistency · repetition 1 | skipped | No measured score | Not measured |