Process Synchronisation | Critical Section Problem | OS | Lec-54 | Bhanu Priya
Education 4u・2 minutes read
Process synchronization in operating systems involves independent and cooperative processes, with synchronization issues arising only in cooperative processes due to shared resources. The critical section problem, solved by ensuring mutual access to shared variables, includes code segments like entry, critical, exit, and remainder sections.
Insights
- **Independent processes** in operating systems do not impact the execution of other processes, while **cooperative processes** can affect each other due to shared resources, leading to synchronization issues.
- The **critical section problem** in process synchronization involves ensuring that a code segment with shared variables is accessed by one process at a time, requiring the implementation of entry and exit sections to manage mutual access effectively.
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Recent questions
What are the two types of processes in operating systems?
Independent and cooperative.
What is the critical section problem in operating systems?
A code segment accessed by one process at a time, containing shared variables.
How can the critical section problem be solved?
By ensuring mutual understanding and access to shared variables.
What are the sections included in a sample code for the critical section?
Entry section, critical section, exit section, and remainder section.
Why do synchronization issues arise in cooperative processes?
Due to shared resources.
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Summary
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Understanding Process Synchronization in Operating Systems
- Process synchronization in operating systems involves two types of processes: independent and cooperative.
- Independent processes do not affect the execution of other processes, while cooperative processes do.
- Synchronization issues arise only in cooperative processes due to shared resources.
- Critical section problem refers to a code segment accessed by one process at a time, containing shared variables.
- Critical section problem can be solved by ensuring mutual understanding and access to shared variables.
- A sample code for critical section includes entry section, critical section, exit section, and remainder section.
- Entry section controls access to the critical section by locking required resources, while exit section removes the lock after completion.
