AI-assisted review
Instance benchmarkDigitalOcean s-4vcpu-8gb
The complete benchmark report. Every workload, in one place.
4 vCPU7.8 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.
360.3events/s
Single thread
Single thread
1,444events/s
All 4 vCPUs
All 4 vCPUs
- 1 thread360.3
- 4 threads1,444
Median of 3 passed runs of about 30 seconds per thread count.
gzip fixed corpus · compression input throughput 160.3 MiB/s · single run.
02 /
Memory bandwidth
sysbench 1.0.20 memory · sequential read and write operations.
Read5,872 MiB/s
Write6,124 MiB/s
CopyNot measured
- Read5,872
- Write6,124
- 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 | 4,585 MB/s | 13,042 µs |
| Sequential write | 2,212 MB/s | 39,059 µs |
| Random read | 84,421 IOPS | 585.7 µs |
| Random write | 61,228 IOPS | 880.6 µs |
| Random mix · read | 48,583 IOPS | 766.0 µs |
| Random mix · write | 20,832 IOPS | 774.1 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 | 99.9 Mbit/s | 97.5 Mbit/s | 131.2 ms | — | — |
| London endpoint 2 | 14.7 Mbit/s | 29.5 Mbit/s | 163.5 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 | 2,807 | 1.42 ms | 3 of 3 passed |
| Storage-bound | 2,459 | 1.62 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 22 min test window, so no time series exists and none is drawn.
| Repetition | CPU 1 thread | Memory read | Random read | PostgreSQL |
|---|---|---|---|---|
| 1 | 342.3 events/s | 5,872 MiB/s | 84,303 IOPS | 3,034 tx/s |
| 2 | 378.8 events/s | 5,661 MiB/s | 85,334 IOPS | 2,807 tx/s |
| 3 | 360.3 events/s | 5,916 MiB/s | 84,421 IOPS | 2,614 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
Window22 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 22 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.
Environment and configuration
| Recorded field | Value |
|---|---|
| Provider | DigitalOcean · detected |
| Region | Bangalore, IN (blr1) · detected |
| Plan | s-4vcpu-8gb · supplied |
| CPU | DO-Regular |
| Architecture | x86_64 |
| Kernel | 6.8.0-142-generic |
| Virtualization | kvm |
| 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 | fdab7860cd17f914bfc9f5b1307a18c3f92830bb4a40a257dcbd43ed32af40c6 |
| Started | 2026-10-17T12:07:45.438Z |
| Finished | 2026-10-17T12:29:48.278Z |
| 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 | 342.3 events/s |
| CPU 4 thread(s) · repetition 1 | passed | Events per second | 1,444 events/s |
| CPU 1 thread(s) · repetition 2 | passed | Events per second | 378.8 events/s |
| CPU 4 thread(s) · repetition 2 | passed | Events per second | 1,432 events/s |
| CPU 1 thread(s) · repetition 3 | passed | Events per second | 360.3 events/s |
| CPU 4 thread(s) · repetition 3 | passed | Events per second | 1,493 events/s |
| gzip fixed corpus · repetition 1 | passed | Compression input throughput | 160.3 MiB/s |
Memory bandwidth
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Memory read · repetition 1 | passed | Bandwidth | 5,872 MiB/s |
| Memory write · repetition 1 | passed | Bandwidth | 6,204 MiB/s |
| Memory read · repetition 2 | passed | Bandwidth | 5,661 MiB/s |
| Memory write · repetition 2 | passed | Bandwidth | 6,082 MiB/s |
| Memory read · repetition 3 | passed | Bandwidth | 5,916 MiB/s |
| Memory write · repetition 3 | passed | Bandwidth | 6,124 MiB/s |
Disk performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Disk write · repetition 1 | passed | write bandwidth | 1,815 MB/s |
| Disk write · repetition 1 | passed | write operations | 1,731 IOPS |
| Disk write · repetition 1 | passed | write p50 latency | 15,008 µs |
| Disk write · repetition 1 | passed | write p95 latency | 42,205 µs |
| Disk write · repetition 1 | passed | write p99 latency | 60,555 µs |
| Disk read · repetition 1 | passed | read bandwidth | 5,113 MB/s |
| Disk read · repetition 1 | passed | read operations | 4,876 IOPS |
| Disk read · repetition 1 | passed | read p50 latency | 5,997 µs |
| Disk read · repetition 1 | passed | read p95 latency | 11,338 µs |
| Disk read · repetition 1 | passed | read p99 latency | 18,481 µs |
| Disk randwrite · repetition 1 | passed | write bandwidth | 237.6 MB/s |
| Disk randwrite · repetition 1 | passed | write operations | 58,011 IOPS |
| Disk randwrite · repetition 1 | passed | write p50 latency | 501.8 µs |
| Disk randwrite · repetition 1 | passed | write p95 latency | 905.2 µs |
| Disk randwrite · repetition 1 | passed | write p99 latency | 1,499 µs |
| Disk randread · repetition 1 | passed | read bandwidth | 345.3 MB/s |
| Disk randread · repetition 1 | passed | read operations | 84,303 IOPS |
| Disk randread · repetition 1 | passed | read p50 latency | 350.2 µs |
| Disk randread · repetition 1 | passed | read p95 latency | 585.7 µs |
| Disk randread · repetition 1 | passed | read p99 latency | 823.3 µs |
| Disk randrw · repetition 1 | passed | read bandwidth | 199.0 MB/s |
| Disk randrw · repetition 1 | passed | read operations | 48,583 IOPS |
| Disk randrw · repetition 1 | passed | read p50 latency | 432.1 µs |
| Disk randrw · repetition 1 | passed | read p95 latency | 766.0 µs |
| Disk randrw · repetition 1 | passed | read p99 latency | 1,106 µs |
| Disk randrw · repetition 1 | passed | write bandwidth | 85.3 MB/s |
| Disk randrw · repetition 1 | passed | write operations | 20,832 IOPS |
| Disk randrw · repetition 1 | passed | write p50 latency | 354.3 µs |
| Disk randrw · repetition 1 | passed | write p95 latency | 774.1 µs |
| Disk randrw · repetition 1 | passed | write p99 latency | 1,237 µs |
| Disk write · repetition 2 | passed | write bandwidth | 2,633 MB/s |
| Disk write · repetition 2 | passed | write operations | 2,511 IOPS |
| Disk write · repetition 2 | passed | write p50 latency | 9,503 µs |
| Disk write · repetition 2 | passed | write p95 latency | 28,443 µs |
| Disk write · repetition 2 | passed | write p99 latency | 45,875 µs |
| Disk read · repetition 2 | passed | read bandwidth | 4,478 MB/s |
| Disk read · repetition 2 | passed | read operations | 4,271 IOPS |
| Disk read · repetition 2 | passed | read p50 latency | 6,783 µs |
| Disk read · repetition 2 | passed | read p95 latency | 13,435 µs |
| Disk read · repetition 2 | passed | read p99 latency | 19,792 µs |
| Disk randwrite · repetition 2 | passed | write bandwidth | 259.8 MB/s |
| Disk randwrite · repetition 2 | passed | write operations | 63,420 IOPS |
| Disk randwrite · repetition 2 | passed | write p50 latency | 469.0 µs |
| Disk randwrite · repetition 2 | passed | write p95 latency | 815.1 µs |
| Disk randwrite · repetition 2 | passed | write p99 latency | 1,090 µs |
| Disk randread · repetition 2 | passed | read bandwidth | 349.5 MB/s |
| Disk randread · repetition 2 | passed | read operations | 85,334 IOPS |
| Disk randread · repetition 2 | passed | read p50 latency | 346.1 µs |
| Disk randread · repetition 2 | passed | read p95 latency | 577.5 µs |
| Disk randread · repetition 2 | passed | read p99 latency | 798.7 µs |
| Disk randrw · repetition 2 | passed | read bandwidth | 209.4 MB/s |
| Disk randrw · repetition 2 | passed | read operations | 51,132 IOPS |
| Disk randrw · repetition 2 | passed | read p50 latency | 407.6 µs |
| Disk randrw · repetition 2 | passed | read p95 latency | 733.2 µs |
| Disk randrw · repetition 2 | passed | read p99 latency | 1,012 µs |
| Disk randrw · repetition 2 | passed | write bandwidth | 89.9 MB/s |
| Disk randrw · repetition 2 | passed | write operations | 21,936 IOPS |
| Disk randrw · repetition 2 | passed | write p50 latency | 333.8 µs |
| Disk randrw · repetition 2 | passed | write p95 latency | 733.2 µs |
| Disk randrw · repetition 2 | passed | write p99 latency | 1,139 µs |
| Disk write · repetition 3 | passed | write bandwidth | 2,212 MB/s |
| Disk write · repetition 3 | passed | write operations | 2,110 IOPS |
| Disk write · repetition 3 | passed | write p50 latency | 10,420 µs |
| Disk write · repetition 3 | passed | write p95 latency | 39,059 µs |
| Disk write · repetition 3 | passed | write p99 latency | 73,925 µs |
| Disk read · repetition 3 | passed | read bandwidth | 4,585 MB/s |
| Disk read · repetition 3 | passed | read operations | 4,373 IOPS |
| Disk read · repetition 3 | passed | read p50 latency | 6,652 µs |
| Disk read · repetition 3 | passed | read p95 latency | 13,042 µs |
| Disk read · repetition 3 | passed | read p99 latency | 20,840 µs |
| Disk randwrite · repetition 3 | passed | write bandwidth | 250.8 MB/s |
| Disk randwrite · repetition 3 | passed | write operations | 61,228 IOPS |
| Disk randwrite · repetition 3 | passed | write p50 latency | 469.0 µs |
| Disk randwrite · repetition 3 | passed | write p95 latency | 880.6 µs |
| Disk randwrite · repetition 3 | passed | write p99 latency | 1,647 µs |
| Disk randread · repetition 3 | passed | read bandwidth | 345.8 MB/s |
| Disk randread · repetition 3 | passed | read operations | 84,421 IOPS |
| Disk randread · repetition 3 | passed | read p50 latency | 350.2 µs |
| Disk randread · repetition 3 | passed | read p95 latency | 585.7 µs |
| Disk randread · repetition 3 | passed | read p99 latency | 798.7 µs |
| Disk randrw · repetition 3 | passed | read bandwidth | 197.4 MB/s |
| Disk randrw · repetition 3 | passed | read operations | 48,188 IOPS |
| Disk randrw · repetition 3 | passed | read p50 latency | 436.2 µs |
| Disk randrw · repetition 3 | passed | read p95 latency | 782.3 µs |
| Disk randrw · repetition 3 | passed | read p99 latency | 1,073 µs |
| Disk randrw · repetition 3 | passed | write bandwidth | 84.6 MB/s |
| Disk randrw · repetition 3 | passed | write operations | 20,662 IOPS |
| Disk randrw · repetition 3 | passed | write p50 latency | 358.4 µs |
| Disk randrw · repetition 3 | passed | write p95 latency | 790.5 µs |
| Disk randrw · repetition 3 | passed | write p99 latency | 1,221 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 | 97.5 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 | 131.2 ms |
| Network upload endpoint 2 · repetition 1 | passed | Sender throughput | 30.9 Mbit/s |
| Network upload endpoint 2 · repetition 1 | passed | Receiver throughput | 29.5 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Sender throughput | 18.8 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Receiver throughput | 14.7 Mbit/s |
| Latency endpoint 2 · repetition 1 | passed | Round-trip mean | 163.5 ms |
PostgreSQL performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| PostgreSQL memory dataset · repetition 1 | passed | Transactions | 3,034 tx/s |
| PostgreSQL memory dataset · repetition 1 | passed | Average latency | 1.32 ms |
| PostgreSQL memory dataset · repetition 2 | passed | Transactions | 2,807 tx/s |
| PostgreSQL memory dataset · repetition 2 | passed | Average latency | 1.42 ms |
| PostgreSQL memory dataset · repetition 3 | passed | Transactions | 2,614 tx/s |
| PostgreSQL memory dataset · repetition 3 | passed | Average latency | 1.53 ms |
| PostgreSQL storage dataset · repetition 1 | passed | Transactions | 2,497 tx/s |
| PostgreSQL storage dataset · repetition 1 | passed | Average latency | 1.60 ms |
| PostgreSQL storage dataset · repetition 2 | passed | Transactions | 2,459 tx/s |
| PostgreSQL storage dataset · repetition 2 | passed | Average latency | 1.62 ms |
| PostgreSQL storage dataset · repetition 3 | passed | Transactions | 2,296 tx/s |
| PostgreSQL storage dataset · repetition 3 | passed | Average latency | 1.74 ms |
Consistency over time
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| 24-hour consistency · repetition 1 | skipped | No measured score | Not measured |