V8 Memory usage(Stack & Heap)

Transcript

1. V8 Memory usage
   Heap memory
   Stack memory
   Global frame
   getBonusPercentage
   findEmployeeBonus
   Employee
   Function
   getBonusPercentage(...) {...}
   Function
   findEmployeeBonus(...) {...}
   Class
   Employee {...}
   

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2. V8 Memory usage
   Heap memory
   Stack memory
   Global frame
   getBonusPercentage
   findEmployeeBonus
   Employee
   BONUS_PERCENTAGE 10
   Function
   getBonusPercentage(...) {...}
   Function
   findEmployeeBonus(...) {...}
   Class
   Employee {...}
   

   View Slide

3. V8 Memory usage
   Heap memory
   Stack memory
   Global frame
   getBonusPercentage
   findEmployeeBonus
   Employee
   BONUS_PERCENTAGE 10
   Function
   getBonusPercentage(...) {...}
   Function
   findEmployeeBonus(...) {...}
   Class
   Employee {...}
   Employee:new
   this
   name “John”
   salary 5000
   sales 5
   Object
   

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4. V8 Memory usage
   Heap memory
   Stack memory
   Global frame
   getBonusPercentage
   findEmployeeBonus
   Employee
   BONUS_PERCENTAGE 10
   Function
   getBonusPercentage(...) {...}
   Function
   findEmployeeBonus(...) {...}
   Class
   Employee {...}
   Employee:new
   this
   name “John”
   salary 5000
   sales 5
   Object
   name “John”
   salary undefined
   sales undefined
   bonus undefined
   

   View Slide

5. V8 Memory usage
   Heap memory
   Stack memory
   Global frame
   getBonusPercentage
   findEmployeeBonus
   Employee
   BONUS_PERCENTAGE 10
   Function
   getBonusPercentage(...) {...}
   Function
   findEmployeeBonus(...) {...}
   Class
   Employee {...}
   Employee:new
   this
   name “John”
   salary 5000
   sales 5
   Object
   name “John”
   salary 5000
   sales undefined
   bonus undefined
   

   View Slide

6. V8 Memory usage
   Heap memory
   Stack memory
   Global frame
   getBonusPercentage
   findEmployeeBonus
   Employee
   BONUS_PERCENTAGE 10
   Function
   getBonusPercentage(...) {...}
   Function
   findEmployeeBonus(...) {...}
   Class
   Employee {...}
   Employee:new
   this
   name “John”
   salary 5000
   sales 5
   return
   Object
   name “John”
   salary 5000
   sales 5
   bonus undefined
   

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7. V8 Memory usage
   Heap memory
   Stack memory
   Global frame
   getBonusPercentage
   findEmployeeBonus
   Employee
   BONUS_PERCENTAGE 10
   john
   Function
   getBonusPercentage(...) {...}
   Function
   findEmployeeBonus(...) {...}
   Class
   Employee {...}
   Object
   name “John”
   salary 5000
   sales 5
   bonus undefined
   

   View Slide

8. V8 Memory usage
   Heap memory
   Stack memory
   Global frame
   getBonusPercentage
   findEmployeeBonus
   Employee
   BONUS_PERCENTAGE 10
   john
   Function
   getBonusPercentage(...) {...}
   Function
   findEmployeeBonus(...) {...}
   Class
   Employee {...}
   Object
   name “John”
   salary 5000
   sales 5
   bonus undefined
   findEmployeeBonus
   salary 5000
   noOfSales 5
   bonusPercentage undefined
   bonus undefined
   

   View Slide

9. V8 Memory usage
   Heap memory
   Stack memory
   Global frame
   getBonusPercentage
   findEmployeeBonus
   Employee
   BONUS_PERCENTAGE 10
   john
   Function
   getBonusPercentage(...) {...}
   Function
   findEmployeeBonus(...) {...}
   Class
   Employee {...}
   Object
   name “John”
   salary 5000
   sales 5
   bonus undefined
   findEmployeeBonus
   salary 5000
   noOfSales 5
   bonusPercentage undefined
   bonus undefined
   getBonusPercentage
   salary 5000
   percentage undefined
   

   View Slide

10. V8 Memory usage
    Heap memory
    Stack memory
    Global frame
    getBonusPercentage
    findEmployeeBonus
    Employee
    BONUS_PERCENTAGE 10
    john
    Function
    getBonusPercentage(...) {...}
    Function
    findEmployeeBonus(...) {...}
    Class
    Employee {...}
    Object
    name “John”
    salary 5000
    sales 5
    bonus undefined
    findEmployeeBonus
    salary 5000
    noOfSales 5
    bonusPercentage undefined
    bonus undefined
    getBonusPercentage
    salary 5000
    percentage 500
    

    View Slide

11. V8 Memory usage
    Heap memory
    Stack memory
    Global frame
    getBonusPercentage
    findEmployeeBonus
    Employee
    BONUS_PERCENTAGE 10
    john
    Function
    getBonusPercentage(...) {...}
    Function
    findEmployeeBonus(...) {...}
    Class
    Employee {...}
    Object
    name “John”
    salary 5000
    sales 5
    bonus undefined
    findEmployeeBonus
    salary 5000
    noOfSales 5
    bonusPercentage undefined
    bonus undefined
    getBonusPercentage
    salary 5000
    percentage 500
    return 500
    

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12. V8 Memory usage
    Heap memory
    Stack memory
    Global frame
    getBonusPercentage
    findEmployeeBonus
    Employee
    BONUS_PERCENTAGE 10
    john
    Function
    getBonusPercentage(...) {...}
    Function
    findEmployeeBonus(...) {...}
    Class
    Employee {...}
    Object
    name “John”
    salary 5000
    sales 5
    bonus undefined
    findEmployeeBonus
    salary 5000
    noOfSales 5
    bonusPercentage 500
    bonus undefined
    

    View Slide

13. V8 Memory usage
    Heap memory
    Stack memory
    Global frame
    getBonusPercentage
    findEmployeeBonus
    Employee
    BONUS_PERCENTAGE 10
    john
    Function
    getBonusPercentage(...) {...}
    Function
    findEmployeeBonus(...) {...}
    Class
    Employee {...}
    Object
    name “John”
    salary 5000
    sales 5
    bonus undefined
    findEmployeeBonus
    salary 5000
    noOfSales 5
    bonusPercentage 500
    bonus 2500
    

    View Slide

14. V8 Memory usage
    Heap memory
    Stack memory
    Global frame
    getBonusPercentage
    findEmployeeBonus
    Employee
    BONUS_PERCENTAGE 10
    john
    Function
    getBonusPercentage(...) {...}
    Function
    findEmployeeBonus(...) {...}
    Class
    Employee {...}
    Object
    name “John”
    salary 5000
    sales 5
    bonus undefined
    findEmployeeBonus
    salary 5000
    noOfSales 5
    bonusPercentage 500
    bonus 2500
    return 2500
    

    View Slide

15. V8 Memory usage
    Heap memory
    Stack memory
    Global frame
    getBonusPercentage
    findEmployeeBonus
    Employee
    BONUS_PERCENTAGE 10
    john
    Function
    getBonusPercentage(...) {...}
    Function
    findEmployeeBonus(...) {...}
    Class
    Employee {...}
    Object
    name “John”
    salary 5000
    sales 5
    bonus 2500
    

    View Slide