AI-assisted review
Instance benchmark

Vultr voc-c-2c-4gb-50s-amd

The complete benchmark report. Every workload, in one place.

2 vCPU3.8 GiB RAMx86_64Silicon Valley, US$40.00 / month
Published report · 17 Oct 2026 · One deployment · 53 min test windowUbuntu 24.04.5 · Region SJC · Method pilot-1

All values below are medians of passed runs unless stated otherwise.

01 /

CPU performance

sysbench 1.0.20 prime workload · 1 thread and all 2 vCPUs.

1,657events/s
Single thread
3,286events/s
All 2 vCPUs
Events / sec
  • 1 thread
    1,657
  • 2 threads
    3,286

Median of 3 passed runs of about 30 seconds per thread count.

gzip fixed corpus · compression input throughput 242.2 MiB/s · single run.

02 /

Memory bandwidth

sysbench 1.0.20 memory · sequential read and write operations.

Read36,017 MiB/s
Write25,030 MiB/s
CopyNot measured
Throughput (MiB/s)
  • Read
    36,017
  • Write
    25,030
  • Copy
    Not 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.

WorkloadThroughputp95 latency
Sequential read3,937 MB/s13,566 µs
Sequential write2,141 MB/s24,773 µs
Random read115,603 IOPS362.5 µs
Random write96,038 IOPS469.0 µs
Random mix · read74,314 IOPS411.6 µs
Random mix · write31,868 IOPS391.2 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: Silicon Valley, US · LibreSpeed CLI 1.0.14 · public HTTPS destinations.

DestinationDownloadUploadHTTP latencyHTTP jitterLoss
Frankfurt, Germany (Clouvider)
17/10/2026, 17:43:38 UTC · Separate VM network-only run · View reviewed run
429.7 Mbit/s106.0 Mbit/s138.1 ms0.10 msNot measured
New York, United States (2) (Clouvider)
17/10/2026, 17:43:38 UTC · Separate VM network-only run · View reviewed run
1,385 Mbit/s257.9 Mbit/s60.8 ms0.08 msNot 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.

05 /

PostgreSQL performance

PostgreSQL 16.15 · pgbench · in-memory and storage-bound datasets.

Dataset profileTransactions / secAverage latencyPassed runs
In memory4,0890.98 ms3 of 3 passed
Storage-bound3,2851.22 ms3 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.

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 53 min test window, so no time series exists and none is drawn.

RepetitionCPU 1 threadMemory readRandom readPostgreSQL
11,655 events/s36,248 MiB/s115,149 IOPS3,854 tx/s
21,658 events/s36,017 MiB/s115,603 IOPS4,251 tx/s
31,657 events/s35,688 MiB/s116,256 IOPS4,089 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
Window53 min
report.json

Reviewed, sanitized snapshot: every run, the environment record and all limitations. Raw intake logs remain private.

Read the full methodology

One deployment describes this report, not every server a provider operates.

A 53 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 fieldValue
ProviderVultr · detected
RegionSilicon Valley, US (SJC) · detected
Planvoc-c-2c-4gb-50s-amd · supplied
List price$40.00 / month · $0.055 / hour. List price on 17 Oct 2026, USD before tax. Source: Vultr plan catalog (API).
CPUAMD EPYC-Milan Processor
Architecturex86_64
Kernel6.8.0-146-generic
Virtualizationmicrosoft
Agent0.2.0 (45388107250ca6e26b216f15a9c17b8d405ec1b7+source.ff98e866b26b3ac76b512554)
Dependenciessysbench: 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 hash73098e9168a59c8bc3ca371424e5a0427f49551be23b20bd5f4de867fc514f0d
Started2026-10-17T11:42:08.600Z
Finished2026-10-17T12:35:33.003Z
Execution statuscompleted
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 destinationDownloadUploadRTTJitterLoss
London endpoint 199.9 Mbit/s97.6 Mbit/s131.3 ms——
London endpoint 299.9 Mbit/s97.5 Mbit/s136.7 ms——
Every measured repetition and outcome

CPU performance

Workload / repetitionOutcomeMetricValue
CPU 1 thread(s) · repetition 1passedEvents per second1,655 events/s
CPU 2 thread(s) · repetition 1passedEvents per second3,296 events/s
CPU 1 thread(s) · repetition 2passedEvents per second1,658 events/s
CPU 2 thread(s) · repetition 2passedEvents per second3,286 events/s
CPU 1 thread(s) · repetition 3passedEvents per second1,657 events/s
CPU 2 thread(s) · repetition 3passedEvents per second3,286 events/s
gzip fixed corpus · repetition 1passedCompression input throughput242.2 MiB/s

Memory bandwidth

Workload / repetitionOutcomeMetricValue
Memory read · repetition 1passedBandwidth36,248 MiB/s
Memory write · repetition 1passedBandwidth25,030 MiB/s
Memory read · repetition 2passedBandwidth36,017 MiB/s
Memory write · repetition 2passedBandwidth24,970 MiB/s
Memory read · repetition 3passedBandwidth35,688 MiB/s
Memory write · repetition 3passedBandwidth25,138 MiB/s

Disk performance

Workload / repetitionOutcomeMetricValue
Disk write · repetition 1passedwrite bandwidth1,922 MB/s
Disk write · repetition 1passedwrite operations1,833 IOPS
Disk write · repetition 1passedwrite p50 latency15,794 µs
Disk write · repetition 1passedwrite p95 latency27,656 µs
Disk write · repetition 1passedwrite p99 latency72,876 µs
Disk read · repetition 1passedread bandwidth4,227 MB/s
Disk read · repetition 1passedread operations4,031 IOPS
Disk read · repetition 1passedread p50 latency7,569 µs
Disk read · repetition 1passedread p95 latency12,780 µs
Disk read · repetition 1passedread p99 latency15,532 µs
Disk randwrite · repetition 1passedwrite bandwidth387.2 MB/s
Disk randwrite · repetition 1passedwrite operations94,535 IOPS
Disk randwrite · repetition 1passedwrite p50 latency333.8 µs
Disk randwrite · repetition 1passedwrite p95 latency477.2 µs
Disk randwrite · repetition 1passedwrite p99 latency536.6 µs
Disk randread · repetition 1passedread bandwidth471.7 MB/s
Disk randread · repetition 1passedread operations115,149 IOPS
Disk randread · repetition 1passedread p50 latency268.3 µs
Disk randread · repetition 1passedread p95 latency362.5 µs
Disk randread · repetition 1passedread p99 latency407.6 µs
Disk randrw · repetition 1passedread bandwidth304.4 MB/s
Disk randrw · repetition 1passedread operations74,314 IOPS
Disk randrw · repetition 1passedread p50 latency297.0 µs
Disk randrw · repetition 1passedread p95 latency411.6 µs
Disk randrw · repetition 1passedread p99 latency700.4 µs
Disk randrw · repetition 1passedwrite bandwidth130.5 MB/s
Disk randrw · repetition 1passedwrite operations31,868 IOPS
Disk randrw · repetition 1passedwrite p50 latency259.1 µs
Disk randrw · repetition 1passedwrite p95 latency391.2 µs
Disk randrw · repetition 1passedwrite p99 latency469.0 µs
Disk write · repetition 2passedwrite bandwidth2,141 MB/s
Disk write · repetition 2passedwrite operations2,042 IOPS
Disk write · repetition 2passedwrite p50 latency13,697 µs
Disk write · repetition 2passedwrite p95 latency24,773 µs
Disk write · repetition 2passedwrite p99 latency76,022 µs
Disk read · repetition 2passedread bandwidth3,937 MB/s
Disk read · repetition 2passedread operations3,755 IOPS
Disk read · repetition 2passedread p50 latency8,159 µs
Disk read · repetition 2passedread p95 latency13,566 µs
Disk read · repetition 2passedread p99 latency16,581 µs
Disk randwrite · repetition 2passedwrite bandwidth394.8 MB/s
Disk randwrite · repetition 2passedwrite operations96,387 IOPS
Disk randwrite · repetition 2passedwrite p50 latency317.4 µs
Disk randwrite · repetition 2passedwrite p95 latency464.9 µs
Disk randwrite · repetition 2passedwrite p99 latency528.4 µs
Disk randread · repetition 2passedread bandwidth473.5 MB/s
Disk randread · repetition 2passedread operations115,603 IOPS
Disk randread · repetition 2passedread p50 latency268.3 µs
Disk randread · repetition 2passedread p95 latency362.5 µs
Disk randread · repetition 2passedread p99 latency407.6 µs
Disk randrw · repetition 2passedread bandwidth304.3 MB/s
Disk randrw · repetition 2passedread operations74,297 IOPS
Disk randrw · repetition 2passedread p50 latency292.9 µs
Disk randrw · repetition 2passedread p95 latency411.6 µs
Disk randrw · repetition 2passedread p99 latency716.8 µs
Disk randrw · repetition 2passedwrite bandwidth130.5 MB/s
Disk randrw · repetition 2passedwrite operations31,861 IOPS
Disk randrw · repetition 2passedwrite p50 latency268.3 µs
Disk randrw · repetition 2passedwrite p95 latency391.2 µs
Disk randrw · repetition 2passedwrite p99 latency460.8 µs
Disk write · repetition 3passedwrite bandwidth2,363 MB/s
Disk write · repetition 3passedwrite operations2,254 IOPS
Disk write · repetition 3passedwrite p50 latency12,255 µs
Disk write · repetition 3passedwrite p95 latency21,889 µs
Disk write · repetition 3passedwrite p99 latency76,022 µs
Disk read · repetition 3passedread bandwidth3,801 MB/s
Disk read · repetition 3passedread operations3,625 IOPS
Disk read · repetition 3passedread p50 latency8,454 µs
Disk read · repetition 3passedread p95 latency14,352 µs
Disk read · repetition 3passedread p99 latency17,433 µs
Disk randwrite · repetition 3passedwrite bandwidth393.4 MB/s
Disk randwrite · repetition 3passedwrite operations96,038 IOPS
Disk randwrite · repetition 3passedwrite p50 latency325.6 µs
Disk randwrite · repetition 3passedwrite p95 latency469.0 µs
Disk randwrite · repetition 3passedwrite p99 latency528.4 µs
Disk randread · repetition 3passedread bandwidth476.2 MB/s
Disk randread · repetition 3passedread operations116,256 IOPS
Disk randread · repetition 3passedread p50 latency268.3 µs
Disk randread · repetition 3passedread p95 latency358.4 µs
Disk randread · repetition 3passedread p99 latency399.4 µs
Disk randrw · repetition 3passedread bandwidth304.6 MB/s
Disk randrw · repetition 3passedread operations74,367 IOPS
Disk randrw · repetition 3passedread p50 latency297.0 µs
Disk randrw · repetition 3passedread p95 latency411.6 µs
Disk randrw · repetition 3passedread p99 latency700.4 µs
Disk randrw · repetition 3passedwrite bandwidth130.6 MB/s
Disk randrw · repetition 3passedwrite operations31,891 IOPS
Disk randrw · repetition 3passedwrite p50 latency264.2 µs
Disk randrw · repetition 3passedwrite p95 latency391.2 µs
Disk randrw · repetition 3passedwrite p99 latency460.8 µs

Network performance

Workload / repetitionOutcomeMetricValue
Network upload endpoint 1 · repetition 1passedSender throughput100.2 Mbit/s
Network upload endpoint 1 · repetition 1passedReceiver throughput97.6 Mbit/s
Network download endpoint 1 · repetition 1passedSender throughput100.0 Mbit/s
Network download endpoint 1 · repetition 1passedReceiver throughput99.9 Mbit/s
Latency endpoint 1 · repetition 1passedRound-trip mean131.3 ms
Network upload endpoint 2 · repetition 1passedSender throughput100.2 Mbit/s
Network upload endpoint 2 · repetition 1passedReceiver throughput97.5 Mbit/s
Network download endpoint 2 · repetition 1passedSender throughput100.1 Mbit/s
Network download endpoint 2 · repetition 1passedReceiver throughput99.9 Mbit/s
Latency endpoint 2 · repetition 1passedRound-trip mean136.7 ms

PostgreSQL performance

Workload / repetitionOutcomeMetricValue
PostgreSQL memory dataset · repetition 1passedTransactions3,854 tx/s
PostgreSQL memory dataset · repetition 1passedAverage latency1.04 ms
PostgreSQL memory dataset · repetition 2passedTransactions4,251 tx/s
PostgreSQL memory dataset · repetition 2passedAverage latency0.94 ms
PostgreSQL memory dataset · repetition 3passedTransactions4,089 tx/s
PostgreSQL memory dataset · repetition 3passedAverage latency0.98 ms
PostgreSQL storage dataset · repetition 1passedTransactions3,260 tx/s
PostgreSQL storage dataset · repetition 1passedAverage latency1.23 ms
PostgreSQL storage dataset · repetition 2passedTransactions3,441 tx/s
PostgreSQL storage dataset · repetition 2passedAverage latency1.16 ms
PostgreSQL storage dataset · repetition 3passedTransactions3,285 tx/s
PostgreSQL storage dataset · repetition 3passedAverage latency1.22 ms

Consistency over time

Workload / repetitionOutcomeMetricValue
24-hour consistency · repetition 1skippedNo measured scoreNot measured