EC2 Optimization Score Simulator

Overall Optimization Score

Weights: Cost Opt (Shutdown) 70% · CPU 30%

Weekly Cost

Base (m8g.xlarge)

$—

—

No optimization

$—

—

Instance Parameters

Instance Type

Current Instance Type

Target Instance Type

Reserved Instance Pricing

RI Applied — use Reserved Instance pricing for cost score

On-Demand Price ($/hr)

RI Price ($/hr)

RI Discount 50%

0% 30% 60% 90%

RI not applied — score: 0

Idle Hours & Scheduled Shutdown

Detected Idle Hours / Week

Scheduled Shutdown Hours / Week

Coverage: 0%

Over-provisioned: shutting down 0h during active hours

CPU Utilization — after right-sizing to Target Instance

Ideal: 60%

Target CPU 40%

0% 50% 100%

Factor Breakdown

Scoring Formulas

RI Savings Score

if (riApplied):
score = 100
else:
score = 0

Idle Hours Score

if (idleHours <= 0): 100
if (shutdownHours <= 0): 0
else:
min(shutdown / idle, 1) × 100

CPU Right-sizing Score

if (cpu <= 60):
cpu / 60 × 100
else:
max(0, 100 − (cpu−60) / 40 × 100)