AI-assisted review
Instance benchmark

Vultr
vc2-2c-4gb

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

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2 vCPU3.8 GiB RAMBLRx86_64
Tested 17 Oct 2026 · One deployment · pilot profileUbuntu 24.04.5 LTS · Methodology pilot-1

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.

445.11events/s
1 threads
873.56events/s
2 threads
Events / sec
  • 1 threads
    445.11
  • 2 threads
    873.56

Within-run medians; thread counts retain their recorded allocation.

Compression · 180.779 MiB/s · passed

02 /

Memory bandwidth

Sequential read and write · recorded sysbench workload.

Read6,719.68 MiB/s
Write6,767.57 MiB/s
Throughput (MiB/s)
  • Read
    6,719.68
  • Write
    6,767.57

Memory copy was not measured.

03 /

Disk performance

fio · direct I/O · recorded sequential and random workloads.

WorkloadRead bandwidthWrite bandwidthRead IOPSWrite IOPSRead p95Write p95
writeNot measured2,977.01 MB/sNot measured2,839.098 IOPSNot measured11,862.016 us
read3,460.902 MB/sNot measured3,300.573 IOPSNot measured11,337.728 usNot measured
randwriteNot measured559.801 MB/sNot measured136,670.178 IOPSNot measured378.88 us
randread566.791 MB/sNot measured138,376.654 IOPSNot measured382.976 usNot measured
randrw345.111 MB/s147.974 MB/s84,255.558 IOPS36,126.462 IOPS432.128 us382.976 us

Read, write and mixed workloads are recorded separately. These are medians of measured repetitions.

04 /

Network performance

Source: BLR · controlled London endpoints.

DestinationDownload (receiver)Upload (receiver)Round-trip mean
London endpoint 199.961 Mbit/s97.205 Mbit/s144.712 ms
London endpoint 299.951 Mbit/s95.471 Mbit/s240.289 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 profileTransactions / secAverage latency
memory3,638.783 transactions/s1.098 ms
storage2,801.913 transactions/s1.426 ms

Within-run medians. PostgreSQL latency percentiles were not measured.

06 /

Consistency over time

Recorded outcomes only; no synthetic time-series.

Workload / repetitionOutcomeMetricValue
24-hour consistency · repetition 1skippedNo measured scoreNot 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
Window2171 seconds
report.json
Read the full methodology

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
RegionBLR · detected
Planvc2-2c-4gb · supplied
CPUIntel Xeon Processor (Cascadelake)
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 hash04ef317a427395210a1b23d06864352aa183ecbd6b7d0717ee926af7a9301069
Started2026-10-17T11:42:27.117Z
Finished2026-10-17T12:18:38.341Z
Execution statuscompleted
Every measured repetition and outcome

CPU performance

Workload / repetitionOutcomeMetricValue
CPU 1 thread(s) · repetition 1passedEvents per second444.87 events/s
CPU 2 thread(s) · repetition 1passedEvents per second873.56 events/s
CPU 1 thread(s) · repetition 2passedEvents per second445.11 events/s
CPU 2 thread(s) · repetition 2passedEvents per second859.17 events/s
CPU 1 thread(s) · repetition 3passedEvents per second451.43 events/s
CPU 2 thread(s) · repetition 3passedEvents per second880.72 events/s
gzip fixed corpus · repetition 1passedCompression input throughput180.779 MiB/s

Memory bandwidth

Workload / repetitionOutcomeMetricValue
Memory read · repetition 1passedBandwidth6,700.15 MiB/s
Memory write · repetition 1passedBandwidth6,767.57 MiB/s
Memory read · repetition 2passedBandwidth6,719.68 MiB/s
Memory write · repetition 2passedBandwidth6,717.71 MiB/s
Memory read · repetition 3passedBandwidth6,978.27 MiB/s
Memory write · repetition 3passedBandwidth6,899.12 MiB/s

Disk performance

Workload / repetitionOutcomeMetricValue
Disk write · repetition 1passedwrite bandwidth2,917.048 MB/s
Disk write · repetition 1passedwrite operations2,781.913 IOPS
Disk write · repetition 1passedwrite p50 latency11,337.728 us
Disk write · repetition 1passedwrite p95 latency12,779.52 us
Disk write · repetition 1passedwrite p99 latency13,828.096 us
Disk read · repetition 1passedread bandwidth3,460.902 MB/s
Disk read · repetition 1passedread operations3,300.573 IOPS
Disk read · repetition 1passedread p50 latency9,633.792 us
Disk read · repetition 1passedread p95 latency11,337.728 us
Disk read · repetition 1passedread p99 latency13,303.808 us
Disk randwrite · repetition 1passedwrite bandwidth541.927 MB/s
Disk randwrite · repetition 1passedwrite operations132,306.49 IOPS
Disk randwrite · repetition 1passedwrite p50 latency228.352 us
Disk randwrite · repetition 1passedwrite p95 latency382.976 us
Disk randwrite · repetition 1passedwrite p99 latency473.088 us
Disk randread · repetition 1passedread bandwidth544.217 MB/s
Disk randread · repetition 1passedread operations132,865.538 IOPS
Disk randread · repetition 1passedread p50 latency222.208 us
Disk randread · repetition 1passedread p95 latency391.168 us
Disk randread · repetition 1passedread p99 latency522.24 us
Disk randrw · repetition 1passedread bandwidth338.083 MB/s
Disk randrw · repetition 1passedread operations82,539.882 IOPS
Disk randrw · repetition 1passedread p50 latency272.384 us
Disk randrw · repetition 1passedread p95 latency432.128 us
Disk randrw · repetition 1passedread p99 latency536.576 us
Disk randrw · repetition 1passedwrite bandwidth144.967 MB/s
Disk randrw · repetition 1passedwrite operations35,392.32 IOPS
Disk randrw · repetition 1passedwrite p50 latency205.824 us
Disk randrw · repetition 1passedwrite p95 latency395.264 us
Disk randrw · repetition 1passedwrite p99 latency618.496 us
Disk write · repetition 2passedwrite bandwidth2,977.01 MB/s
Disk write · repetition 2passedwrite operations2,839.098 IOPS
Disk write · repetition 2passedwrite p50 latency11,206.656 us
Disk write · repetition 2passedwrite p95 latency11,862.016 us
Disk write · repetition 2passedwrite p99 latency13,172.736 us
Disk read · repetition 2passedread bandwidth3,462.198 MB/s
Disk read · repetition 2passedread operations3,301.809 IOPS
Disk read · repetition 2passedread p50 latency9,633.792 us
Disk read · repetition 2passedread p95 latency11,075.584 us
Disk read · repetition 2passedread p99 latency13,434.88 us
Disk randwrite · repetition 2passedwrite bandwidth559.801 MB/s
Disk randwrite · repetition 2passedwrite operations136,670.178 IOPS
Disk randwrite · repetition 2passedwrite p50 latency216.064 us
Disk randwrite · repetition 2passedwrite p95 latency378.88 us
Disk randwrite · repetition 2passedwrite p99 latency464.896 us
Disk randread · repetition 2passedread bandwidth576.851 MB/s
Disk randread · repetition 2passedread operations140,832.672 IOPS
Disk randread · repetition 2passedread p50 latency207.872 us
Disk randread · repetition 2passedread p95 latency382.976 us
Disk randread · repetition 2passedread p99 latency518.144 us
Disk randrw · repetition 2passedread bandwidth345.111 MB/s
Disk randrw · repetition 2passedread operations84,255.558 IOPS
Disk randrw · repetition 2passedread p50 latency268.288 us
Disk randrw · repetition 2passedread p95 latency432.128 us
Disk randrw · repetition 2passedread p99 latency544.768 us
Disk randrw · repetition 2passedwrite bandwidth147.974 MB/s
Disk randrw · repetition 2passedwrite operations36,126.462 IOPS
Disk randrw · repetition 2passedwrite p50 latency199.68 us
Disk randrw · repetition 2passedwrite p95 latency366.592 us
Disk randrw · repetition 2passedwrite p99 latency552.96 us
Disk write · repetition 3passedwrite bandwidth3,081.858 MB/s
Disk write · repetition 3passedwrite operations2,939.089 IOPS
Disk write · repetition 3passedwrite p50 latency10,813.44 us
Disk write · repetition 3passedwrite p95 latency11,599.872 us
Disk write · repetition 3passedwrite p99 latency13,041.664 us
Disk read · repetition 3passedread bandwidth3,457.911 MB/s
Disk read · repetition 3passedread operations3,297.721 IOPS
Disk read · repetition 3passedread p50 latency9,633.792 us
Disk read · repetition 3passedread p95 latency11,862.016 us
Disk read · repetition 3passedread p99 latency13,565.952 us
Disk randwrite · repetition 3passedwrite bandwidth577.205 MB/s
Disk randwrite · repetition 3passedwrite operations140,919.303 IOPS
Disk randwrite · repetition 3passedwrite p50 latency209.92 us
Disk randwrite · repetition 3passedwrite p95 latency366.592 us
Disk randwrite · repetition 3passedwrite p99 latency464.896 us
Disk randread · repetition 3passedread bandwidth566.791 MB/s
Disk randread · repetition 3passedread operations138,376.654 IOPS
Disk randread · repetition 3passedread p50 latency214.016 us
Disk randread · repetition 3passedread p95 latency370.688 us
Disk randread · repetition 3passedread p99 latency493.568 us
Disk randrw · repetition 3passedread bandwidth350.93 MB/s
Disk randrw · repetition 3passedread operations85,676.322 IOPS
Disk randrw · repetition 3passedread p50 latency264.192 us
Disk randrw · repetition 3passedread p95 latency423.936 us
Disk randrw · repetition 3passedread p99 latency528.384 us
Disk randrw · repetition 3passedwrite bandwidth150.455 MB/s
Disk randrw · repetition 3passedwrite operations36,732.218 IOPS
Disk randrw · repetition 3passedwrite p50 latency197.632 us
Disk randrw · repetition 3passedwrite p95 latency382.976 us
Disk randrw · repetition 3passedwrite p99 latency585.728 us

Network performance

Workload / repetitionOutcomeMetricValue
Network upload endpoint 1 · repetition 1passedSender throughput100.156 Mbit/s
Network upload endpoint 1 · repetition 1passedReceiver throughput97.205 Mbit/s
Network download endpoint 1 · repetition 1passedSender throughput100.002 Mbit/s
Network download endpoint 1 · repetition 1passedReceiver throughput99.961 Mbit/s
Latency endpoint 1 · repetition 1passedRound-trip mean144.712 ms
Network upload endpoint 2 · repetition 1passedSender throughput100.156 Mbit/s
Network upload endpoint 2 · repetition 1passedReceiver throughput95.471 Mbit/s
Network download endpoint 2 · repetition 1passedSender throughput100.065 Mbit/s
Network download endpoint 2 · repetition 1passedReceiver throughput99.951 Mbit/s
Latency endpoint 2 · repetition 1passedRound-trip mean240.289 ms

PostgreSQL performance

Workload / repetitionOutcomeMetricValue
PostgreSQL memory dataset · repetition 1passedTransactions3,677.311 transactions/s
PostgreSQL memory dataset · repetition 1passedAverage latency1.086 ms
PostgreSQL memory dataset · repetition 2passedTransactions3,544.934 transactions/s
PostgreSQL memory dataset · repetition 2passedAverage latency1.127 ms
PostgreSQL memory dataset · repetition 3passedTransactions3,638.783 transactions/s
PostgreSQL memory dataset · repetition 3passedAverage latency1.098 ms
PostgreSQL storage dataset · repetition 1passedTransactions2,646.661 transactions/s
PostgreSQL storage dataset · repetition 1passedAverage latency1.51 ms
PostgreSQL storage dataset · repetition 2passedTransactions2,801.913 transactions/s
PostgreSQL storage dataset · repetition 2passedAverage latency1.426 ms
PostgreSQL storage dataset · repetition 3passedTransactions3,001.903 transactions/s
PostgreSQL storage dataset · repetition 3passedAverage latency1.331 ms

Consistency over time

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

One deployment during its recorded test window. Raw intake logs remain private; the JSON download contains the reviewed, sanitized snapshot.

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