In computing, the producer–consumer problem (also known as the bounded-buffer problem) is a classic example of a multi-process synchronization problem. The problem is described as two processes, the producer and the consumer, who share a common, fixed-size buffer used as a queue. The producer's job is to generate data, put it into the buffer, and start again. At the same time, the consumer is consuming the data (i.e., removing it from the buffer), one piece at a time. The problem is to make sure that the producer won't try to add data into the buffer if it's full and that the consumer won't try to remove data from an empty buffer.
his Course is about learning How Linux Processes Talk to each Other. This is a sub-domain of Linux System Programming. We shall explore various popular mechanism used in the industry through which Linux processes to exchange data with each other. We will go through the concepts in detail behind each IPC mechanism, discuss the implementation, and design and analyze the situation where the given IPC is preferred over others.
In computing, the producer–consumer problem (also known as the bounded-buffer problem) is a classic example of a multi-process synchronization problem. The problem is described as two processes, the producer and the consumer, who share a common, fixed-size buffer used as a queue. The producer's job is to generate data, put it into the buffer, and start again. At the same time, the consumer is consuming the data (i.e., removing it from the buffer), one piece at a time. The problem is to make sure that the producer won't try to add data into the buffer if it's full and that the consumer won't try to remove data from an empty buffer.
his Course is about learning How Linux Processes Talk to each Other. This is a sub-domain of Linux System Programming. We shall explore various popular mechanism used in the industry through which Linux processes to exchange data with each other. We will go through the concepts in detail behind each IPC mechanism, discuss the implementation, and design and analyze the situation where the given IPC is preferred over others.
This presentation examines the way files are stored in Linux following the File System Hierarchy. It also addresses the recent proposals by Fedora to change this to merge bin directories.
A presentation on the Dining Philosopher's Problem, explaining the problem, issues while solving the problem and solutions to the problem. The presentation then takes the user through the Requirement Engineering for the problem via its 4 phases, including, Requirement Discovery, Analysis, Validation and Management. The presentation also includes Use Case Diagrams and Data Flow Diagrams.
Relational databases vs Non-relational databasesJames Serra
There is a lot of confusion about the place and purpose of the many recent non-relational database solutions ("NoSQL databases") compared to the relational database solutions that have been around for so many years. In this presentation I will first clarify what exactly these database solutions are, compare them, and discuss the best use cases for each. I'll discuss topics involving OLTP, scaling, data warehousing, polyglot persistence, and the CAP theorem. We will even touch on a new type of database solution called NewSQL. If you are building a new solution it is important to understand all your options so you take the right path to success.
Introduction To Big Data with Hadoop and Spark - For Batch and Real Time Proc...Agile Testing Alliance
Introduction To Big Data with Hadoop and Spark - For Batch and Real Time Processing by "Sampat Kumar" from "Harman". The presentation was done at #doppa17 DevOps++ Global Summit 2017. All the copyrights are reserved with the author
An Activity is an application component that provides a screen with which users can interact in order to do something, such as dial the phone, take a photo, send an email, or view a map.
Each activity is given a window in which to draw its user interface. The window typically fills the screen, but may be smaller than the screen and float on top of other windows.
An application usually consists of multiple activities that are loosely bound to each other. Typically, one activity in an application is specified as the "main" activity, which is presented to the user when launching the application for the first time. Each activity can then start another activity in order to perform different actions.
Each time a new activity starts, the previous activity is stopped, but the system preserves the activity in a stack .
When a new activity starts, it is pushed onto the back stack and takes user focus.
Server operating system is very important for clients and companies. So to know about which one you should choose based on the requirement is a important factor. So in this slide we covered the top server operating systems leading the market.
Inter-Process Communication in distributed systemsAya Mahmoud
Inter-Process Communication is at the heart of all distributed systems, so we need to know the ways that processes can exchange information.
Communication in distributed systems is based on Low-level message passing as offered by the underlying network.
This presentation examines the way files are stored in Linux following the File System Hierarchy. It also addresses the recent proposals by Fedora to change this to merge bin directories.
A presentation on the Dining Philosopher's Problem, explaining the problem, issues while solving the problem and solutions to the problem. The presentation then takes the user through the Requirement Engineering for the problem via its 4 phases, including, Requirement Discovery, Analysis, Validation and Management. The presentation also includes Use Case Diagrams and Data Flow Diagrams.
Relational databases vs Non-relational databasesJames Serra
There is a lot of confusion about the place and purpose of the many recent non-relational database solutions ("NoSQL databases") compared to the relational database solutions that have been around for so many years. In this presentation I will first clarify what exactly these database solutions are, compare them, and discuss the best use cases for each. I'll discuss topics involving OLTP, scaling, data warehousing, polyglot persistence, and the CAP theorem. We will even touch on a new type of database solution called NewSQL. If you are building a new solution it is important to understand all your options so you take the right path to success.
Introduction To Big Data with Hadoop and Spark - For Batch and Real Time Proc...Agile Testing Alliance
Introduction To Big Data with Hadoop and Spark - For Batch and Real Time Processing by "Sampat Kumar" from "Harman". The presentation was done at #doppa17 DevOps++ Global Summit 2017. All the copyrights are reserved with the author
An Activity is an application component that provides a screen with which users can interact in order to do something, such as dial the phone, take a photo, send an email, or view a map.
Each activity is given a window in which to draw its user interface. The window typically fills the screen, but may be smaller than the screen and float on top of other windows.
An application usually consists of multiple activities that are loosely bound to each other. Typically, one activity in an application is specified as the "main" activity, which is presented to the user when launching the application for the first time. Each activity can then start another activity in order to perform different actions.
Each time a new activity starts, the previous activity is stopped, but the system preserves the activity in a stack .
When a new activity starts, it is pushed onto the back stack and takes user focus.
Server operating system is very important for clients and companies. So to know about which one you should choose based on the requirement is a important factor. So in this slide we covered the top server operating systems leading the market.
Inter-Process Communication in distributed systemsAya Mahmoud
Inter-Process Communication is at the heart of all distributed systems, so we need to know the ways that processes can exchange information.
Communication in distributed systems is based on Low-level message passing as offered by the underlying network.
The .NET Framework provides several threading locking primitives. The Reader Writer Solution is one of them.
The Reader Writer Solution class is used to synchronize access to a resource. At any given time, it allows concurrent read access to multiple (essentially unlimited) threads, or it allows write access for a single thread. In situations where a resource is read frequently but updated infrequently, a Reader Writer Solution will provide much better throughput than the exclusive Monitor lock.
Course: Operating System
A brief introduction to Process synchronization in Operating Systems with classical examples and solutions using semaphores. A good starting tutorial for beginners.
The SlideShare 101 is a quick start guide if you want to walk through the main features that the platform offers. This will keep getting updated as new features are launched.
The SlideShare 101 replaces the earlier "SlideShare Quick Tour".
7. Operation of Semaphores
A Semaphores
คือ ตัวแปรจานวนเต็มตั้งแต่ 0 ขึ้นไป ซึ่งเวลาจะเพิ่มหรือลดค่าตัวแปร
จะทาผ่าน 2 ฟังก์ชันดังนี้
V(s): [s = s + 1]
P(s): [while(s == 0) {wait}; s = s - 1]
8. Bounded Buffer Problem
Producer/Consumer Problem
Producer Consumer
Empty Pool
Full Pool
คือปัญหาคลาสสิคทางด้าน synchronization ที่นาเสนอโดย Dijkstra เพื่อนแสดงให้เห็น
วิธีการใช้งาน semaphores ในสองรูปแบบ
9. 3 Semaphores
Type 1 : Binary semaphores
1. A mutual exclusion semaphore to prevent the
producer and consumer from manipulating the list of
buffers at the same time
Type 2 : General semaphores (counting semaphores)
2. A semaphore so that the producer can signal the
consumer to start processing when it creates a full
buffer
3. A semaphore for the consumer to signal the
producer when it creates an empty buffer
