Distribution
Histograms with percentiles, box plots by group, spread summaries and before and after comparisons.
Distributions show the shape of a metric, not just its average: where most values sit, how far the tail reaches and whether a few large values pull the mean up. Blocks take binned counts, such as histogram buckets from a metrics backend, a summary of percentiles or raw values. Percentiles from bins assume values are spread evenly within each bin, so they are estimates. Every chart comes with a table of the same values for screen readers.
Histogram
Response times in buckets that widen as times grow, with p50, p95 and p99 lines and the buckets over the SLO in red. Hover a bar to read its count.
- p50
- 128 ms
- p95
- 462 ms
- p99
- 899 ms
- Over SLO, 800 ms
- 1.2%
- Requests
- Over SLO
- Percentiles
86,145 requests. Buckets widen as times grow, so the axis is uneven.
| Response time | Requests | Share |
|---|---|---|
| 0 ms–25 ms | 1,820 | 2% |
| 25 ms–50 ms | 6,940 | 8% |
| 50 ms–75 ms | 11,260 | 13% |
| 75 ms–100 ms | 12,480 | 14% |
| 100 ms–150 ms | 18,950 | 22% |
| 150 ms–200 ms | 12,310 | 14% |
| 200 ms–300 ms | 11,870 | 14% |
| 300 ms–400 ms | 5,240 | 6% |
| 400 ms–600 ms | 3,120 | 4% |
| 600 ms–800 ms | 1,140 | 1% |
| 800 ms–1.2 s | 620 | 0.7% |
| 1.2 s–1.6 s | 290 | 0.3% |
| 1.6 s–2.4 s | 105 | 0.1% |
Box Plots
One box and whiskers per group on a shared axis: the box spans the middle half, the line is the median and the whiskers reach the 5th and 95th percentiles.
- Middle half
- Median
- 5th–95th percentile
Technical is slowest, with half its tickets taking over 6.6 h
| Group | Low | 25th percentile | Median | 75th percentile | High | Tickets |
|---|---|---|---|---|---|---|
| Billing | 0.2 h | 0.9 h | 2.1 h | 4.2 h | 8.4 h | 386 |
| Account | 0.2 h | 1.3 h | 3.1 h | 6.1 h | 13 h | 512 |
| Onboarding | 0.3 h | 1.7 h | 4.2 h | 8.2 h | 17 h | 274 |
| Technical | 0.5 h | 2.8 h | 6.6 h | 13 h | 27 h | 628 |
Spread
The median, mean and percentiles of raw values, with a note when a long tail pulls the mean away from the median.
- Median
- $91
- Mean
- $120
- Orders
- 420
- Middle half
- Median
- Mean
- 10th–90th percentile
- p10
- $52
- p25
- $65
- p50
- $91
- p75
- $139
- p90
- $217
The mean is 32% above the median: a few large orders pull it up, so the median is the typical one.
Before and After
This week's distribution against last week's outline, as shares so weeks of different sizes compare fairly, with both medians and the change at the median and p90.
- Median, this week
- 1.6 s
- 0.4 s better than last week (1.9 s)
- p90, this week
- 2.9 s
- 0.6 s better than last week (3.5 s)
- This week
- Last week
- Medians
Each bar is a share of its week, so weeks with more traffic compare fairly.
| Range | This week | Last week |
|---|---|---|
| 0 s–0.5 s | 3% | 1% |
| 0.5 s–1 s | 16% | 9% |
| 1 s–1.5 s | 28% | 19% |
| 1.5 s–2 s | 23% | 23% |
| 2 s–2.5 s | 14% | 18% |
| 2.5 s–3 s | 8% | 12% |
| 3 s–3.5 s | 4% | 7% |
| 3.5 s–4 s | 2% | 4% |
| 4 s–4.5 s | 1% | 2% |
| 4.5 s–5 s | 0.6% | 1% |
| 5 s–5.5 s | 0.3% | 0.8% |
| 5.5 s–6 s | 0.2% | 0.5% |