AI-assisted review
Instance benchmarkDigitalOcean
c2-2vcpu-4gb
The complete benchmark report. Every workload, in one place.
2 vCPU3.8 GiB RAMsfo2x86_64
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.
444.51events/s
1 threads
1 threads
691.8events/s
2 threads
2 threads
- 1 threads444.51
- 2 threads691.8
Within-run medians; thread counts retain their recorded allocation.
Compression · 207.076 MiB/s · passed
02 /
Memory bandwidth
Sequential read and write · recorded sysbench workload.
Read8,681.45 MiB/s
Write8,499.59 MiB/s
- Read8,681.45
- Write8,499.59
Memory copy was not measured.
03 /
Disk performance
fio · direct I/O · recorded sequential and random workloads.
| Workload | Read bandwidth | Write bandwidth | Read IOPS | Write IOPS | Read p95 | Write p95 |
|---|---|---|---|---|---|---|
| write | Not measured | 1,134.407 MB/s | Not measured | 1,081.855 IOPS | Not measured | 69,730.304 us |
| read | 2,929.249 MB/s | Not measured | 2,793.549 IOPS | Not measured | 13,565.952 us | Not measured |
| randwrite | Not measured | 274.196 MB/s | Not measured | 66,942.369 IOPS | Not measured | 675.84 us |
| randread | 381.38 MB/s | Not measured | 93,110.43 IOPS | Not measured | 473.088 us | Not measured |
| randrw | 221.711 MB/s | 95.11 MB/s | 54,128.62 IOPS | 23,220.145 IOPS | 602.112 us | 460.8 us |
Read, write and mixed workloads are recorded separately. These are medians of measured repetitions.
04 /
Network performance
Source: sfo2 · controlled London endpoints.
| Destination | Download (receiver) | Upload (receiver) | Round-trip mean |
|---|---|---|---|
| London endpoint 1 | 99.946 Mbit/s | 97.408 Mbit/s | 144.656 ms |
| London endpoint 2 | 99.946 Mbit/s | 97.445 Mbit/s | 137.859 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 profile | Transactions / sec | Average latency |
|---|---|---|
| memory | 1,896.907 transactions/s | 2.106 ms |
| storage | 1,115.169 transactions/s | 3.583 ms |
Within-run medians. PostgreSQL latency percentiles were not measured.
06 /
Consistency over time
Recorded outcomes only; no synthetic time-series.
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| 24-hour consistency · repetition 1 | skipped | No measured score | Not 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
Window1303 seconds
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 | sfo2 · detected |
| Plan | c2-2vcpu-4gb · supplied |
| CPU | Intel(R) Xeon(R) Platinum 8168 CPU @ 2.70GHz |
| 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 | 57ddbe7b8cb16529201da296bafe8fdc8a20d14d3d3f63518b00c5095bbec419 |
| Started | 2026-10-17T12:13:03.235Z |
| Finished | 2026-10-17T12:34:45.819Z |
| 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 | 443.15 events/s |
| CPU 2 thread(s) · repetition 1 | passed | Events per second | 700.85 events/s |
| CPU 1 thread(s) · repetition 2 | passed | Events per second | 445.77 events/s |
| CPU 2 thread(s) · repetition 2 | passed | Events per second | 691.8 events/s |
| CPU 1 thread(s) · repetition 3 | passed | Events per second | 444.51 events/s |
| CPU 2 thread(s) · repetition 3 | passed | Events per second | 687.58 events/s |
| gzip fixed corpus · repetition 1 | passed | Compression input throughput | 207.076 MiB/s |
Memory bandwidth
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Memory read · repetition 1 | passed | Bandwidth | 8,743.81 MiB/s |
| Memory write · repetition 1 | passed | Bandwidth | 8,614.29 MiB/s |
| Memory read · repetition 2 | passed | Bandwidth | 8,681.45 MiB/s |
| Memory write · repetition 2 | passed | Bandwidth | 8,499.59 MiB/s |
| Memory read · repetition 3 | passed | Bandwidth | 8,619.9 MiB/s |
| Memory write · repetition 3 | passed | Bandwidth | 8,459.93 MiB/s |
Disk performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Disk write · repetition 1 | passed | write bandwidth | 1,184.575 MB/s |
| Disk write · repetition 1 | passed | write operations | 1,129.699 IOPS |
| Disk write · repetition 1 | passed | write p50 latency | 25,821.184 us |
| Disk write · repetition 1 | passed | write p95 latency | 56,885.248 us |
| Disk write · repetition 1 | passed | write p99 latency | 93,847.552 us |
| Disk read · repetition 1 | passed | read bandwidth | 2,882.055 MB/s |
| Disk read · repetition 1 | passed | read operations | 2,748.542 IOPS |
| Disk read · repetition 1 | passed | read p50 latency | 11,337.728 us |
| Disk read · repetition 1 | passed | read p95 latency | 14,221.312 us |
| Disk read · repetition 1 | passed | read p99 latency | 21,626.88 us |
| Disk randwrite · repetition 1 | passed | write bandwidth | 272.697 MB/s |
| Disk randwrite · repetition 1 | passed | write operations | 66,576.347 IOPS |
| Disk randwrite · repetition 1 | passed | write p50 latency | 464.896 us |
| Disk randwrite · repetition 1 | passed | write p95 latency | 700.416 us |
| Disk randwrite · repetition 1 | passed | write p99 latency | 823.296 us |
| Disk randread · repetition 1 | passed | read bandwidth | 381.38 MB/s |
| Disk randread · repetition 1 | passed | read operations | 93,110.43 IOPS |
| Disk randread · repetition 1 | passed | read p50 latency | 313.344 us |
| Disk randread · repetition 1 | passed | read p95 latency | 473.088 us |
| Disk randread · repetition 1 | passed | read p99 latency | 815.104 us |
| Disk randrw · repetition 1 | passed | read bandwidth | 223.736 MB/s |
| Disk randrw · repetition 1 | passed | read operations | 54,622.946 IOPS |
| Disk randrw · repetition 1 | passed | read p50 latency | 362.496 us |
| Disk randrw · repetition 1 | passed | read p95 latency | 610.304 us |
| Disk randrw · repetition 1 | passed | read p99 latency | 2,572.288 us |
| Disk randrw · repetition 1 | passed | write bandwidth | 95.95 MB/s |
| Disk randrw · repetition 1 | passed | write operations | 23,425.286 IOPS |
| Disk randrw · repetition 1 | passed | write p50 latency | 317.44 us |
| Disk randrw · repetition 1 | passed | write p95 latency | 477.184 us |
| Disk randrw · repetition 1 | passed | write p99 latency | 847.872 us |
| Disk write · repetition 2 | passed | write bandwidth | 1,134.407 MB/s |
| Disk write · repetition 2 | passed | write operations | 1,081.855 IOPS |
| Disk write · repetition 2 | passed | write p50 latency | 25,559.04 us |
| Disk write · repetition 2 | passed | write p95 latency | 69,730.304 us |
| Disk write · repetition 2 | passed | write p99 latency | 137,363.456 us |
| Disk read · repetition 2 | passed | read bandwidth | 2,963.744 MB/s |
| Disk read · repetition 2 | passed | read operations | 2,826.446 IOPS |
| Disk read · repetition 2 | passed | read p50 latency | 11,206.656 us |
| Disk read · repetition 2 | passed | read p95 latency | 12,517.376 us |
| Disk read · repetition 2 | passed | read p99 latency | 15,400.96 us |
| Disk randwrite · repetition 2 | passed | write bandwidth | 274.196 MB/s |
| Disk randwrite · repetition 2 | passed | write operations | 66,942.369 IOPS |
| Disk randwrite · repetition 2 | passed | write p50 latency | 448.512 us |
| Disk randwrite · repetition 2 | passed | write p95 latency | 675.84 us |
| Disk randwrite · repetition 2 | passed | write p99 latency | 831.488 us |
| Disk randread · repetition 2 | passed | read bandwidth | 390.559 MB/s |
| Disk randread · repetition 2 | passed | read operations | 95,351.388 IOPS |
| Disk randread · repetition 2 | passed | read p50 latency | 309.248 us |
| Disk randread · repetition 2 | passed | read p95 latency | 464.896 us |
| Disk randread · repetition 2 | passed | read p99 latency | 684.032 us |
| Disk randrw · repetition 2 | passed | read bandwidth | 221.256 MB/s |
| Disk randrw · repetition 2 | passed | read operations | 54,017.665 IOPS |
| Disk randrw · repetition 2 | passed | read p50 latency | 370.688 us |
| Disk randrw · repetition 2 | passed | read p95 latency | 602.112 us |
| Disk randrw · repetition 2 | passed | read p99 latency | 2,605.056 us |
| Disk randrw · repetition 2 | passed | write bandwidth | 94.908 MB/s |
| Disk randrw · repetition 2 | passed | write operations | 23,170.955 IOPS |
| Disk randrw · repetition 2 | passed | write p50 latency | 325.632 us |
| Disk randrw · repetition 2 | passed | write p95 latency | 456.704 us |
| Disk randrw · repetition 2 | passed | write p99 latency | 659.456 us |
| Disk write · repetition 3 | passed | write bandwidth | 1,111.919 MB/s |
| Disk write · repetition 3 | passed | write operations | 1,060.408 IOPS |
| Disk write · repetition 3 | passed | write p50 latency | 27,131.904 us |
| Disk write · repetition 3 | passed | write p95 latency | 73,924.608 us |
| Disk write · repetition 3 | passed | write p99 latency | 131,596.288 us |
| Disk read · repetition 3 | passed | read bandwidth | 2,929.249 MB/s |
| Disk read · repetition 3 | passed | read operations | 2,793.549 IOPS |
| Disk read · repetition 3 | passed | read p50 latency | 11,206.656 us |
| Disk read · repetition 3 | passed | read p95 latency | 13,565.952 us |
| Disk read · repetition 3 | passed | read p99 latency | 19,791.872 us |
| Disk randwrite · repetition 3 | passed | write bandwidth | 280.584 MB/s |
| Disk randwrite · repetition 3 | passed | write operations | 68,501.883 IOPS |
| Disk randwrite · repetition 3 | passed | write p50 latency | 444.416 us |
| Disk randwrite · repetition 3 | passed | write p95 latency | 659.456 us |
| Disk randwrite · repetition 3 | passed | write p99 latency | 815.104 us |
| Disk randread · repetition 3 | passed | read bandwidth | 378.931 MB/s |
| Disk randread · repetition 3 | passed | read operations | 92,512.416 IOPS |
| Disk randread · repetition 3 | passed | read p50 latency | 317.44 us |
| Disk randread · repetition 3 | passed | read p95 latency | 473.088 us |
| Disk randread · repetition 3 | passed | read p99 latency | 684.032 us |
| Disk randrw · repetition 3 | passed | read bandwidth | 221.711 MB/s |
| Disk randrw · repetition 3 | passed | read operations | 54,128.62 IOPS |
| Disk randrw · repetition 3 | passed | read p50 latency | 370.688 us |
| Disk randrw · repetition 3 | passed | read p95 latency | 602.112 us |
| Disk randrw · repetition 3 | passed | read p99 latency | 2,572.288 us |
| Disk randrw · repetition 3 | passed | write bandwidth | 95.11 MB/s |
| Disk randrw · repetition 3 | passed | write operations | 23,220.145 IOPS |
| Disk randrw · repetition 3 | passed | write p50 latency | 325.632 us |
| Disk randrw · repetition 3 | passed | write p95 latency | 460.8 us |
| Disk randrw · repetition 3 | passed | write p99 latency | 626.688 us |
Network performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Network upload endpoint 1 · repetition 1 | passed | Sender throughput | 100.156 Mbit/s |
| Network upload endpoint 1 · repetition 1 | passed | Receiver throughput | 97.408 Mbit/s |
| Network download endpoint 1 · repetition 1 | passed | Sender throughput | 100.04 Mbit/s |
| Network download endpoint 1 · repetition 1 | passed | Receiver throughput | 99.946 Mbit/s |
| Latency endpoint 1 · repetition 1 | passed | Round-trip mean | 144.656 ms |
| Network upload endpoint 2 · repetition 1 | passed | Sender throughput | 100.157 Mbit/s |
| Network upload endpoint 2 · repetition 1 | passed | Receiver throughput | 97.445 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Sender throughput | 100.154 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Receiver throughput | 99.946 Mbit/s |
| Latency endpoint 2 · repetition 1 | passed | Round-trip mean | 137.859 ms |
PostgreSQL performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| PostgreSQL memory dataset · repetition 1 | passed | Transactions | 1,871.821 transactions/s |
| PostgreSQL memory dataset · repetition 1 | passed | Average latency | 2.134 ms |
| PostgreSQL memory dataset · repetition 2 | passed | Transactions | 1,896.907 transactions/s |
| PostgreSQL memory dataset · repetition 2 | passed | Average latency | 2.106 ms |
| PostgreSQL memory dataset · repetition 3 | passed | Transactions | 1,931.181 transactions/s |
| PostgreSQL memory dataset · repetition 3 | passed | Average latency | 2.069 ms |
| PostgreSQL storage dataset · repetition 1 | passed | Transactions | 1,017.78 transactions/s |
| PostgreSQL storage dataset · repetition 1 | passed | Average latency | 3.922 ms |
| PostgreSQL storage dataset · repetition 2 | passed | Transactions | 1,193.114 transactions/s |
| PostgreSQL storage dataset · repetition 2 | passed | Average latency | 3.349 ms |
| PostgreSQL storage dataset · repetition 3 | passed | Transactions | 1,115.169 transactions/s |
| PostgreSQL storage dataset · repetition 3 | passed | Average latency | 3.583 ms |
Consistency over time
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| 24-hour consistency · repetition 1 | skipped | No measured score | Not measured |
One deployment during its recorded test window. Raw intake logs remain private; the JSON download contains the reviewed, sanitized snapshot.