Presentation on Operating System Thread | OS Thread

1. PRESENTATION ON
THREAD
PRESENTED BY:
NAME: SALEH IBNE OMAR
ID: 2017000000040
COURSE: OPERATING SYSTEMS
SECTION: 01

2. THREAD INTRODUCTION
▪ A flow of execution through process code
▪ Basic unit of CPU utilization
▪ Component of process
▪ Consists of a program counter, stack, set of registers,
and ID
▪ Can be single or multiple
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3. USES OF THREAD
▪ To improve program performance
▪ To maximize CPU utilization
▪ Make good use of parallel processing
▪ To reduce resource usage
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4. TYPES OF THREAD
▪ User Level Threads (ULT)
▪ Kernel Level Threads (KLT)
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5. USER LEVEL THREAD
▪ Implemented in user level libraries
▪ Does not call OS for context switching
▪ Is not known to OS Kernel
▪ Platform independent
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6. KERNEL LEVEL THREAD
▪ Created and managed by OS Kernel
▪ Is known to OS Kernel
▪ Can be multithreaded
▪ Runtime system is not needed
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7. Single-Threaded Process
THREAD USAGE OF PROCESS
Multi-Threaded Process
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8. MULTI-THREADING MODELS
One to One Many to One Many to Many
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9. ADVANTAGES OF THREAD
▪ Faster context switching
▪ Minimizes resource usage by resource sharing
▪ Provides concurrency within a process
▪ Effectively utilizes multiprocessor system
▪ Makes communication between multiple threads easier
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10. DISADVANTAGES OF THREAD
▪ May cause security issues
▪ Blocking of a parent thread will stop all the child threads
▪ CPU may remain idle during blocking period
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11. THREAD EXAMPLES OF OS
▪ Windows XP threads
▪ Linux threads
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12. THANK YOU!
Have Any questions?
FEEL FREE TO RAISE
YOUR HAND.
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