// multi-utility computation suite · offline · instant · precise
┌──────────────────────────┐
│ [c] calcalyst_ │
│ computation suite │
└──────────────────────────┘
// select a module to initialize
/ search↵ open firstesc close
// adsenseEMPTY_LEADER_SLOT728×90
// adsenseMOBILE_ANCHOR_SLOT320×50
// keyboard_shortcuts
/focus search
↑↓navigate module list
Enter
open first result from search
open highlighted
compute when module is open
compute when focused in a field
Escclose module · clear selection
⌫
build.db-query-cache-hit Calculator
Calculates query plan cache hit rate and estimates execution time savings from re-using cached plans vs. re-planning on each query. Prepared statements and parameterised queries are the standard way to maximise plan cache hit rate.
Inputs
Queries S
Reference formula or conversion factor shown for context.
Hit Rate
Amount per unit of time or per unit quantity. Check the denominator before interpreting.
Cold Ms
Reference formula or conversion factor shown for context.
Warm Ms
Reference formula or conversion factor shown for context.
Results
cache hits/s
CAC (customer acquisition cost) -- total sales and marketing spend divided by new customers acquired. Healthy LTV:CAC ratio is 3:1 or higher.
time saved
The total amount saved compared to the baseline scenario — cost savings, time savings, or resource savings.
CPU reduction
Sample size or count used in the calculation.
effective QPS
Reference formula or conversion factor shown for context.