Monitoring Calculators
20 free monitoring calculators in DevOps. The first 7 have a full write-up: the method, a worked example and questions specific to that calculator.
- Alert Frequency CalculatorCalculate how often alerts fire based on thresholds and metric volatility.
- Exporter Resource CalculatorEstimate CPU and memory overhead added by running Prometheus exporters on a host.
- Grafana Dashboard Load CalculatorEstimate query load a Grafana dashboard places on its underlying data sources.
- Metrics Cardinality CalculatorCalculate total time series cardinality from metric names and label combinations.
- PromQL Query Cost CalculatorEstimate the computational cost of a PromQL query based on range and series selected.
- SLI CalculatorCalculate a service level indicator from successful events over total events.
- Time Series Growth CalculatorProject how the number of active time series will grow as services and labels scale.
- Alert Noise Score CalculatorScore how noisy an alerting setup is from false-positive and repeat-alert ratios.
- Alertmanager Capacity CalculatorCalculate how many alerts Alertmanager can process and route per minute.
- Dashboard Query Time CalculatorEstimate total query execution time for all panels on a monitoring dashboard.
- Error Budget CalculatorCalculate remaining error budget based on your SLO target and current failure rate.
- Metric Ingestion CalculatorCalculate total metric samples ingested per second across all monitored targets.
- Monitoring Coverage CalculatorCalculate the percentage of infrastructure and services covered by active monitoring.
- MTBF CalculatorCalculate mean time between failures from total uptime and failure count.
- MTTR CalculatorCalculate mean time to recovery from incident detection to full resolution.
- Prometheus Retention CalculatorCalculate how long Prometheus can retain metrics given available disk space.
- Prometheus Storage CalculatorEstimate Prometheus disk storage needs from sample ingestion rate and retention.
- Prometheus TSDB Size CalculatorCalculate Prometheus TSDB block size based on series count and sample density.
- Scrape Interval CalculatorDetermine the right Prometheus scrape interval balancing granularity and storage cost.
- SLO Compliance CalculatorCheck whether current SLI performance is meeting your defined SLO target.