AI-assisted review
Instance benchmarkDigitalOcean c-4
The complete benchmark report. Every workload, in one place.
4 vCPU7.8 GiB RAMx86_64Bangalore, IN$84.00 / month
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.
497.5events/s
Single thread
Single thread
1,544events/s
All 4 vCPUs
All 4 vCPUs
- 1 thread497.5
- 4 threads1,544
Median of 3 passed runs of about 30 seconds per thread count.
gzip fixed corpus · compression input throughput 241.3 MiB/s · single run.
02 /
Memory bandwidth
sysbench 1.0.20 memory · sequential read and write operations.
Read8,331 MiB/s
Write8,450 MiB/s
CopyNot measured
- Read8,331
- Write8,450
- 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 | 9,489 MB/s | 5,341 µs |
| Sequential write | 1,670 MB/s | 36,438 µs |
| Random read | 151,801 IOPS | 280.6 µs |
| Random write | 135,456 IOPS | 329.7 µs |
| Random mix · read | 93,754 IOPS | 350.2 µs |
| Random mix · write | 40,176 IOPS | 292.9 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 · LibreSpeed CLI 1.0.14 · public HTTPS destinations.
| Destination | Download | Upload | HTTP latency | HTTP jitter | Loss |
|---|---|---|---|---|---|
| Frankfurt, Germany (Clouvider) 17/10/2026, 18:15:56 UTC · Separate VM network-only run · View reviewed run | 168.6 Mbit/s | 140.8 Mbit/s | 133.4 ms | 0.10 ms | Not measured |
| New York, United States (2) (Clouvider) 17/10/2026, 18:15:56 UTC · Separate VM network-only run · View reviewed run | 296.7 Mbit/s | 91.0 Mbit/s | 214.4 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.
05 /
PostgreSQL performance
PostgreSQL 16.15 · pgbench · in-memory and storage-bound datasets.
| Dataset profile | Transactions / sec | Average latency | Passed runs |
|---|---|---|---|
| In memory | 4,779 | 0.84 ms | 3 of 3 passed |
| Storage-bound | 3,910 | 1.02 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.
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 21 min test window, so no time series exists and none is drawn.
| Repetition | CPU 1 thread | Memory read | Random read | PostgreSQL |
|---|---|---|---|---|
| 1 | 493.9 events/s | 8,298 MiB/s | 151,787 IOPS | 4,755 tx/s |
| 2 | 497.9 events/s | 8,331 MiB/s | 151,801 IOPS | 4,779 tx/s |
| 3 | 497.5 events/s | 8,400 MiB/s | 152,646 IOPS | 4,793 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
Window21 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 21 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 | c-4 · supplied |
| List price | $84.00 / month · $0.125 / hour. List price on 17 Oct 2026, USD before tax. Source: DigitalOcean size catalog (API). |
| CPU | Intel(R) Xeon(R) Platinum 8280 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 | 0284a3ee81606f2645108bbbc2006365e41a08e2b26be310958420bf7ef221f7 |
| Started | 2026-10-17T12:39:46.000Z |
| Finished | 2026-10-17T13:01:06.732Z |
| 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 | 99.9 Mbit/s | 97.5 Mbit/s | 131.2 ms | — | — |
| London endpoint 2 | 99.9 Mbit/s | 97.1 Mbit/s | 147.1 ms | — | — |
Every measured repetition and outcome
CPU performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| CPU 1 thread(s) · repetition 1 | passed | Events per second | 493.9 events/s |
| CPU 4 thread(s) · repetition 1 | passed | Events per second | 1,546 events/s |
| CPU 1 thread(s) · repetition 2 | passed | Events per second | 497.9 events/s |
| CPU 4 thread(s) · repetition 2 | passed | Events per second | 1,534 events/s |
| CPU 1 thread(s) · repetition 3 | passed | Events per second | 497.5 events/s |
| CPU 4 thread(s) · repetition 3 | passed | Events per second | 1,544 events/s |
| gzip fixed corpus · repetition 1 | passed | Compression input throughput | 241.3 MiB/s |
Memory bandwidth
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Memory read · repetition 1 | passed | Bandwidth | 8,298 MiB/s |
| Memory write · repetition 1 | passed | Bandwidth | 8,641 MiB/s |
| Memory read · repetition 2 | passed | Bandwidth | 8,331 MiB/s |
| Memory write · repetition 2 | passed | Bandwidth | 8,432 MiB/s |
| Memory read · repetition 3 | passed | Bandwidth | 8,400 MiB/s |
| Memory write · repetition 3 | passed | Bandwidth | 8,450 MiB/s |
Disk performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| Disk write · repetition 1 | passed | write bandwidth | 1,670 MB/s |
| Disk write · repetition 1 | passed | write operations | 1,593 IOPS |
| Disk write · repetition 1 | passed | write p50 latency | 17,170 µs |
| Disk write · repetition 1 | passed | write p95 latency | 36,438 µs |
| Disk write · repetition 1 | passed | write p99 latency | 50,070 µs |
| Disk read · repetition 1 | passed | read bandwidth | 9,489 MB/s |
| Disk read · repetition 1 | passed | read operations | 9,049 IOPS |
| Disk read · repetition 1 | passed | read p50 latency | 3,359 µs |
| Disk read · repetition 1 | passed | read p95 latency | 5,341 µs |
| Disk read · repetition 1 | passed | read p99 latency | 7,700 µs |
| Disk randwrite · repetition 1 | passed | write bandwidth | 553.3 MB/s |
| Disk randwrite · repetition 1 | passed | write operations | 135,075 IOPS |
| Disk randwrite · repetition 1 | passed | write p50 latency | 232.4 µs |
| Disk randwrite · repetition 1 | passed | write p95 latency | 329.7 µs |
| Disk randwrite · repetition 1 | passed | write p99 latency | 391.2 µs |
| Disk randread · repetition 1 | passed | read bandwidth | 621.7 MB/s |
| Disk randread · repetition 1 | passed | read operations | 151,787 IOPS |
| Disk randread · repetition 1 | passed | read p50 latency | 203.8 µs |
| Disk randread · repetition 1 | passed | read p95 latency | 280.6 µs |
| Disk randread · repetition 1 | passed | read p99 latency | 333.8 µs |
| Disk randrw · repetition 1 | passed | read bandwidth | 384.0 MB/s |
| Disk randrw · repetition 1 | passed | read operations | 93,754 IOPS |
| Disk randrw · repetition 1 | passed | read p50 latency | 242.7 µs |
| Disk randrw · repetition 1 | passed | read p95 latency | 346.1 µs |
| Disk randrw · repetition 1 | passed | read p99 latency | 436.2 µs |
| Disk randrw · repetition 1 | passed | write bandwidth | 164.6 MB/s |
| Disk randrw · repetition 1 | passed | write operations | 40,176 IOPS |
| Disk randrw · repetition 1 | passed | write p50 latency | 197.6 µs |
| Disk randrw · repetition 1 | passed | write p95 latency | 292.9 µs |
| Disk randrw · repetition 1 | passed | write p99 latency | 378.9 µs |
| Disk write · repetition 2 | passed | write bandwidth | 1,615 MB/s |
| Disk write · repetition 2 | passed | write operations | 1,540 IOPS |
| Disk write · repetition 2 | passed | write p50 latency | 17,695 µs |
| Disk write · repetition 2 | passed | write p95 latency | 38,535 µs |
| Disk write · repetition 2 | passed | write p99 latency | 57,934 µs |
| Disk read · repetition 2 | passed | read bandwidth | 9,309 MB/s |
| Disk read · repetition 2 | passed | read operations | 8,878 IOPS |
| Disk read · repetition 2 | passed | read p50 latency | 3,457 µs |
| Disk read · repetition 2 | passed | read p95 latency | 5,341 µs |
| Disk read · repetition 2 | passed | read p99 latency | 6,914 µs |
| Disk randwrite · repetition 2 | passed | write bandwidth | 556.8 MB/s |
| Disk randwrite · repetition 2 | passed | write operations | 135,947 IOPS |
| Disk randwrite · repetition 2 | passed | write p50 latency | 232.4 µs |
| Disk randwrite · repetition 2 | passed | write p95 latency | 329.7 µs |
| Disk randwrite · repetition 2 | passed | write p99 latency | 378.9 µs |
| Disk randread · repetition 2 | passed | read bandwidth | 621.8 MB/s |
| Disk randread · repetition 2 | passed | read operations | 151,801 IOPS |
| Disk randread · repetition 2 | passed | read p50 latency | 203.8 µs |
| Disk randread · repetition 2 | passed | read p95 latency | 280.6 µs |
| Disk randread · repetition 2 | passed | read p99 latency | 329.7 µs |
| Disk randrw · repetition 2 | passed | read bandwidth | 384.0 MB/s |
| Disk randrw · repetition 2 | passed | read operations | 93,744 IOPS |
| Disk randrw · repetition 2 | passed | read p50 latency | 242.7 µs |
| Disk randrw · repetition 2 | passed | read p95 latency | 350.2 µs |
| Disk randrw · repetition 2 | passed | read p99 latency | 440.3 µs |
| Disk randrw · repetition 2 | passed | write bandwidth | 164.5 MB/s |
| Disk randrw · repetition 2 | passed | write operations | 40,172 IOPS |
| Disk randrw · repetition 2 | passed | write p50 latency | 197.6 µs |
| Disk randrw · repetition 2 | passed | write p95 latency | 292.9 µs |
| Disk randrw · repetition 2 | passed | write p99 latency | 383.0 µs |
| Disk write · repetition 3 | passed | write bandwidth | 1,726 MB/s |
| Disk write · repetition 3 | passed | write operations | 1,646 IOPS |
| Disk write · repetition 3 | passed | write p50 latency | 17,433 µs |
| Disk write · repetition 3 | passed | write p95 latency | 33,423 µs |
| Disk write · repetition 3 | passed | write p99 latency | 45,351 µs |
| Disk read · repetition 3 | passed | read bandwidth | 9,631 MB/s |
| Disk read · repetition 3 | passed | read operations | 9,185 IOPS |
| Disk read · repetition 3 | passed | read p50 latency | 3,326 µs |
| Disk read · repetition 3 | passed | read p95 latency | 4,882 µs |
| Disk read · repetition 3 | passed | read p99 latency | 8,159 µs |
| Disk randwrite · repetition 3 | passed | write bandwidth | 554.8 MB/s |
| Disk randwrite · repetition 3 | passed | write operations | 135,456 IOPS |
| Disk randwrite · repetition 3 | passed | write p50 latency | 232.4 µs |
| Disk randwrite · repetition 3 | passed | write p95 latency | 329.7 µs |
| Disk randwrite · repetition 3 | passed | write p99 latency | 374.8 µs |
| Disk randread · repetition 3 | passed | read bandwidth | 625.2 MB/s |
| Disk randread · repetition 3 | passed | read operations | 152,646 IOPS |
| Disk randread · repetition 3 | passed | read p50 latency | 201.7 µs |
| Disk randread · repetition 3 | passed | read p95 latency | 280.6 µs |
| Disk randread · repetition 3 | passed | read p99 latency | 329.7 µs |
| Disk randrw · repetition 3 | passed | read bandwidth | 384.8 MB/s |
| Disk randrw · repetition 3 | passed | read operations | 93,955 IOPS |
| Disk randrw · repetition 3 | passed | read p50 latency | 242.7 µs |
| Disk randrw · repetition 3 | passed | read p95 latency | 354.3 µs |
| Disk randrw · repetition 3 | passed | read p99 latency | 444.4 µs |
| Disk randrw · repetition 3 | passed | write bandwidth | 164.9 MB/s |
| Disk randrw · repetition 3 | passed | write operations | 40,261 IOPS |
| Disk randrw · repetition 3 | passed | write p50 latency | 195.6 µs |
| Disk randrw · repetition 3 | passed | write p95 latency | 292.9 µs |
| Disk randrw · repetition 3 | passed | write p99 latency | 383.0 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 | 100.2 Mbit/s |
| Network upload endpoint 2 · repetition 1 | passed | Receiver throughput | 97.1 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Sender throughput | 100.1 Mbit/s |
| Network download endpoint 2 · repetition 1 | passed | Receiver throughput | 99.9 Mbit/s |
| Latency endpoint 2 · repetition 1 | passed | Round-trip mean | 147.1 ms |
PostgreSQL performance
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| PostgreSQL memory dataset · repetition 1 | passed | Transactions | 4,755 tx/s |
| PostgreSQL memory dataset · repetition 1 | passed | Average latency | 0.84 ms |
| PostgreSQL memory dataset · repetition 2 | passed | Transactions | 4,779 tx/s |
| PostgreSQL memory dataset · repetition 2 | passed | Average latency | 0.84 ms |
| PostgreSQL memory dataset · repetition 3 | passed | Transactions | 4,793 tx/s |
| PostgreSQL memory dataset · repetition 3 | passed | Average latency | 0.83 ms |
| PostgreSQL storage dataset · repetition 1 | passed | Transactions | 3,997 tx/s |
| PostgreSQL storage dataset · repetition 1 | passed | Average latency | 1.00 ms |
| PostgreSQL storage dataset · repetition 2 | passed | Transactions | 3,910 tx/s |
| PostgreSQL storage dataset · repetition 2 | passed | Average latency | 1.02 ms |
| PostgreSQL storage dataset · repetition 3 | passed | Transactions | 3,825 tx/s |
| PostgreSQL storage dataset · repetition 3 | passed | Average latency | 1.04 ms |
Consistency over time
| Workload / repetition | Outcome | Metric | Value |
|---|---|---|---|
| 24-hour consistency · repetition 1 | skipped | No measured score | Not measured |