AI-assisted review

Instance benchmark

DigitalOcean s-4vcpu-8gb

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

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4 vCPU7.8 GiB RAMx86_64London, UK

Published report · 17 Oct 2026 · One deployment · 31 min test windowUbuntu 24.04.5 · Region lon1 · 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 4 vCPUs.

346.9events/s
Single thread

1,322events/s
All 4 vCPUs

Events / sec

1 thread
346.9
4 threads
1,322

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

gzip fixed corpus · compression input throughput 180.7 MiB/s · single run.

02 /

Memory bandwidth

sysbench 1.0.20 memory · sequential read and write operations.

Read5,644 MiB/s

Write5,670 MiB/s

CopyNot measured

Throughput (MiB/s)

Read
5,644
Write
5,670
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.

Workload	Throughput	p95 latency
Sequential read	2,082 MB/s	35,914 µs
Sequential write	487.9 MB/s	125,305 µs
Random read	36,277 IOPS	2,769 µs
Random write	26,203 IOPS	2,900 µs
Random mix · read	26,554 IOPS	1,729 µs
Random mix · write	11,382 IOPS	2,114 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: London, UK · two controlled London endpoints.

Destination	Download	Upload	RTT	Jitter	Loss
London endpoint 1	100.1 Mbit/s	100.1 Mbit/s	0.84 ms	—	—
London endpoint 2	100.1 Mbit/s	99.9 Mbit/s	3.55 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	568.2	7.03 ms	3 of 3 passed
Storage-bound	619.9	6.45 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 31 min test window, so no time series exists and none is drawn.

Repetition	CPU 1 thread	Memory read	Random read	PostgreSQL
1	346.9 events/s	5,644 MiB/s	31,122 IOPS	568.2 tx/s
2	312.5 events/s	5,528 MiB/s	40,594 IOPS	545.9 tx/s
3	363.6 events/s	5,755 MiB/s	36,277 IOPS	629.6 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

Window31 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 31 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 field	Value
Provider	DigitalOcean · detected
Region	London, UK (lon1) · 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	2026-10-17T11:42:18.832Z
Finished	2026-10-17T12:13:18.914Z
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	346.9 events/s
CPU 4 thread(s) · repetition 1	passed	Events per second	1,311 events/s
CPU 1 thread(s) · repetition 2	passed	Events per second	312.5 events/s
CPU 4 thread(s) · repetition 2	passed	Events per second	1,354 events/s
CPU 1 thread(s) · repetition 3	passed	Events per second	363.6 events/s
CPU 4 thread(s) · repetition 3	passed	Events per second	1,322 events/s
gzip fixed corpus · repetition 1	passed	Compression input throughput	180.7 MiB/s

Memory bandwidth

Workload / repetition	Outcome	Metric	Value
Memory read · repetition 1	passed	Bandwidth	5,644 MiB/s
Memory write · repetition 1	passed	Bandwidth	5,411 MiB/s
Memory read · repetition 2	passed	Bandwidth	5,528 MiB/s
Memory write · repetition 2	passed	Bandwidth	5,727 MiB/s
Memory read · repetition 3	passed	Bandwidth	5,755 MiB/s
Memory write · repetition 3	passed	Bandwidth	5,670 MiB/s

Disk performance

Workload / repetition	Outcome	Metric	Value
Disk write · repetition 1	passed	write bandwidth	434.1 MB/s
Disk write · repetition 1	passed	write operations	414.0 IOPS
Disk write · repetition 1	passed	write p50 latency	69,730 µs
Disk write · repetition 1	passed	write p95 latency	137,363 µs
Disk write · repetition 1	passed	write p99 latency	175,112 µs
Disk read · repetition 1	passed	read bandwidth	2,179 MB/s
Disk read · repetition 1	passed	read operations	2,078 IOPS
Disk read · repetition 1	passed	read p50 latency	12,386 µs
Disk read · repetition 1	passed	read p95 latency	35,914 µs
Disk read · repetition 1	passed	read p99 latency	52,167 µs
Disk randwrite · repetition 1	passed	write bandwidth	105.5 MB/s
Disk randwrite · repetition 1	passed	write operations	25,761 IOPS
Disk randwrite · repetition 1	passed	write p50 latency	929.8 µs
Disk randwrite · repetition 1	passed	write p95 latency	2,900 µs
Disk randwrite · repetition 1	passed	write p99 latency	6,455 µs
Disk randread · repetition 1	passed	read bandwidth	127.5 MB/s
Disk randread · repetition 1	passed	read operations	31,122 IOPS
Disk randread · repetition 1	passed	read p50 latency	481.3 µs
Disk randread · repetition 1	passed	read p95 latency	4,014 µs
Disk randread · repetition 1	passed	read p99 latency	10,027 µs
Disk randrw · repetition 1	passed	read bandwidth	95.2 MB/s
Disk randrw · repetition 1	passed	read operations	23,239 IOPS
Disk randrw · repetition 1	passed	read p50 latency	659.5 µs
Disk randrw · repetition 1	passed	read p95 latency	1,991 µs
Disk randrw · repetition 1	passed	read p99 latency	5,603 µs
Disk randrw · repetition 1	passed	write bandwidth	40.8 MB/s
Disk randrw · repetition 1	passed	write operations	9,967 IOPS
Disk randrw · repetition 1	passed	write p50 latency	684.0 µs
Disk randrw · repetition 1	passed	write p95 latency	2,376 µs
Disk randrw · repetition 1	passed	write p99 latency	5,931 µs
Disk write · repetition 2	passed	write bandwidth	487.9 MB/s
Disk write · repetition 2	passed	write operations	465.3 IOPS
Disk write · repetition 2	passed	write p50 latency	65,274 µs
Disk write · repetition 2	passed	write p95 latency	117,965 µs
Disk write · repetition 2	passed	write p99 latency	139,461 µs
Disk read · repetition 2	passed	read bandwidth	2,082 MB/s
Disk read · repetition 2	passed	read operations	1,985 IOPS
Disk read · repetition 2	passed	read p50 latency	12,386 µs
Disk read · repetition 2	passed	read p95 latency	35,389 µs
Disk read · repetition 2	passed	read p99 latency	49,545 µs
Disk randwrite · repetition 2	passed	write bandwidth	107.3 MB/s
Disk randwrite · repetition 2	passed	write operations	26,203 IOPS
Disk randwrite · repetition 2	passed	write p50 latency	888.8 µs
Disk randwrite · repetition 2	passed	write p95 latency	2,998 µs
Disk randwrite · repetition 2	passed	write p99 latency	6,324 µs
Disk randread · repetition 2	passed	read bandwidth	166.3 MB/s
Disk randread · repetition 2	passed	read operations	40,594 IOPS
Disk randread · repetition 2	passed	read p50 latency	452.6 µs
Disk randread · repetition 2	passed	read p95 latency	2,736 µs
Disk randread · repetition 2	passed	read p99 latency	6,521 µs
Disk randrw · repetition 2	passed	read bandwidth	118.0 MB/s
Disk randrw · repetition 2	passed	read operations	28,820 IOPS
Disk randrw · repetition 2	passed	read p50 latency	593.9 µs
Disk randrw · repetition 2	passed	read p95 latency	1,565 µs
Disk randrw · repetition 2	passed	read p99 latency	3,752 µs
Disk randrw · repetition 2	passed	write bandwidth	50.6 MB/s
Disk randrw · repetition 2	passed	write operations	12,355 IOPS
Disk randrw · repetition 2	passed	write p50 latency	593.9 µs
Disk randrw · repetition 2	passed	write p95 latency	1,925 µs
Disk randrw · repetition 2	passed	write p99 latency	4,014 µs
Disk write · repetition 3	passed	write bandwidth	499.5 MB/s
Disk write · repetition 3	passed	write operations	476.3 IOPS
Disk write · repetition 3	passed	write p50 latency	61,604 µs
Disk write · repetition 3	passed	write p95 latency	125,305 µs
Disk write · repetition 3	passed	write p99 latency	160,432 µs
Disk read · repetition 3	passed	read bandwidth	1,644 MB/s
Disk read · repetition 3	passed	read operations	1,568 IOPS
Disk read · repetition 3	passed	read p50 latency	18,219 µs
Disk read · repetition 3	passed	read p95 latency	46,924 µs
Disk read · repetition 3	passed	read p99 latency	67,633 µs
Disk randwrite · repetition 3	passed	write bandwidth	125.8 MB/s
Disk randwrite · repetition 3	passed	write operations	30,712 IOPS
Disk randwrite · repetition 3	passed	write p50 latency	790.5 µs
Disk randwrite · repetition 3	passed	write p95 latency	2,540 µs
Disk randwrite · repetition 3	passed	write p99 latency	5,276 µs
Disk randread · repetition 3	passed	read bandwidth	148.6 MB/s
Disk randread · repetition 3	passed	read operations	36,277 IOPS
Disk randread · repetition 3	passed	read p50 latency	536.6 µs
Disk randread · repetition 3	passed	read p95 latency	2,769 µs
Disk randread · repetition 3	passed	read p99 latency	6,390 µs
Disk randrw · repetition 3	passed	read bandwidth	108.8 MB/s
Disk randrw · repetition 3	passed	read operations	26,554 IOPS
Disk randrw · repetition 3	passed	read p50 latency	593.9 µs
Disk randrw · repetition 3	passed	read p95 latency	1,729 µs
Disk randrw · repetition 3	passed	read p99 latency	4,817 µs
Disk randrw · repetition 3	passed	write bandwidth	46.6 MB/s
Disk randrw · repetition 3	passed	write operations	11,382 IOPS
Disk randrw · repetition 3	passed	write p50 latency	593.9 µs
Disk randrw · repetition 3	passed	write p95 latency	2,114 µs
Disk randrw · repetition 3	passed	write p99 latency	5,210 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	100.1 Mbit/s
Network download endpoint 1 · repetition 1	passed	Sender throughput	100.1 Mbit/s
Network download endpoint 1 · repetition 1	passed	Receiver throughput	100.1 Mbit/s
Latency endpoint 1 · repetition 1	passed	Round-trip mean	0.84 ms
Network upload endpoint 2 · repetition 1	passed	Sender throughput	100.2 Mbit/s
Network upload endpoint 2 · repetition 1	passed	Receiver throughput	99.9 Mbit/s
Network download endpoint 2 · repetition 1	passed	Sender throughput	100.0 Mbit/s
Network download endpoint 2 · repetition 1	passed	Receiver throughput	100.1 Mbit/s
Latency endpoint 2 · repetition 1	passed	Round-trip mean	3.55 ms

PostgreSQL performance

Workload / repetition	Outcome	Metric	Value
PostgreSQL memory dataset · repetition 1	passed	Transactions	568.2 tx/s
PostgreSQL memory dataset · repetition 1	passed	Average latency	7.03 ms
PostgreSQL memory dataset · repetition 2	passed	Transactions	545.9 tx/s
PostgreSQL memory dataset · repetition 2	passed	Average latency	7.32 ms
PostgreSQL memory dataset · repetition 3	passed	Transactions	629.6 tx/s
PostgreSQL memory dataset · repetition 3	passed	Average latency	6.35 ms
PostgreSQL storage dataset · repetition 1	passed	Transactions	619.9 tx/s
PostgreSQL storage dataset · repetition 1	passed	Average latency	6.45 ms
PostgreSQL storage dataset · repetition 2	passed	Transactions	595.8 tx/s
PostgreSQL storage dataset · repetition 2	passed	Average latency	6.71 ms
PostgreSQL storage dataset · repetition 3	passed	Transactions	664.8 tx/s
PostgreSQL storage dataset · repetition 3	passed	Average latency	6.01 ms

Consistency over time

Workload / repetition	Outcome	Metric	Value
24-hour consistency · repetition 1	skipped	No measured score	Not measured