BigD thread calculator
Enter your vCPU count (and whether the system is hyperthreaded) to get the BigD thread count BIG-IP 21.1 derives automatically, per F5's documented formulas, plus the bigd.numprocs override cap and the 15,000-monitor ceiling.
NetworkingRuns entirely in your browser: two documented formulas, no network, no clock.
API endpointGEThttps://ronutz.com/api/v1/f5-bigd-thread-calculatorDocumented, not served. Opens the specification.
References
- F5 techdocs - New Features in BIG-IP Version 21.1.0: BigD enhancements for large-scale configurations
- F5 clouddocs - rSeries Training: Multitenancy (CPU allocation per model)
- F5 clouddocs - VELOS Training: Points of Management (tenant vCPUs and HT-Split)
- F5 K15003 - Data and control plane tasks use separate logical cores under Intel Hyper-Threading