05 / The workbench

Small tools. Clear answers.

Four focused utilities for everyday engineering questions. Inputs stay in your browser. Assumptions stay in plain sight.

Latency Analyzer

Example data, not a production trace.

Separate values with spaces, commas, or semicolons. Maximum 10,000 samples.

Beyond the average
15 msp50
68 msp95
120 msp99

20 samples / mean 24.4 ms / min 11 ms / max 120 ms

Latency distribution

11 - 32.8
17
32.8 - 54.6
1
54.6 - 76.4
1
76.4 - 98.2
0
98.2 - 120
1

Bin labels in ms. Intervals include the lower bound and exclude the upper; the final bin includes the maximum.

Nearest-rank percentiles. With fewer than 100 samples, p99 may simply be the maximum. No throughput is inferred from individual durations.

Bring your own questions.

Try the same access sequence under two eviction policies. Change the burst without changing the rate. Check a /31 subnet before assuming two reserved addresses.

Related reading

Latency percentiles and the limits of averages →

Why measurement method, observation point, and sample size matter.

Search the notebook

Search articles, projects, and experiments. Everything stays on your device.

palash / notebook

A small doorway into the site. No shell, no remote execution.

Welcome. Type help to find your way around.

lab →experience →contact →Ctrl / Cmd + K