In the the buffer pool, ________ tracks the number of threads that are currently accessing that page (either reading or modifying it) latch dirty flag pin counter page directory
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In the the buffer pool, ________ tracks the number of threads that are currently accessing that page (either reading or modifying it)
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- The ______ method of threads begins but does not execute a thread. The ____method executes a thread.The B_____method of threads begins but does not execute a thread. The ______ method executes a thread.Assignment 5.py: #Assignment 5 import Queueimport threadingimport timeimport random THREADS = 200 class addingThread (threading.Thread):def __init__(self, l):threading.Thread.__init__(self)self.threadID = 3self.name = "addingThread"self.l = lself.iteration = 0 def run(self):#delay start by a random time between 0 and 0.1 secsleep_time= random.randint(1,1000)/10000.0time.sleep(sleep_time)while self.iteration < len(self.l):#remove the comment for Question 1.3#lock.acquire()self.l[self.iteration] = self.l[self.iteration] +1#remove the comment for Question 1.3#lock.release()self.iteration= self.iteration + 1#remove the comment for Question 1.3 #lock = threading.Lock()workList = range(1,101)threads = [] # Create new threadsthread_num=0while thread_num < THREADS:thread = addingThread(workList)threads.append(thread)thread_num = thread_num +1 # Start threadsfor t in threads:t.start() # Wait for all created threads to finishfor t in threads:t.join() #print final listprint "Final list:…
- Multi-threading A) Write a Thread class (called worker) that takes two numbers (A and B, A < B) and calculates the products of all numbers between A and B. the result is stored in a local variable than can be accessed through a get method. ). The main thread reads n from the user, then creates two instances of Worker. Each one is requested to calculate the half of numbers between 1 and n. Once they finish, the main thread will gather their results and print the final result (result1 x result2). Example when n=10Functions that are called by threads must have a property known as thread safety. T OR Fusing C language Write a program that creates an array of size 10000, then creates two threads.should requests entrance to the critical section that is controlled through semaphores, reads the values written in the array, and writes it to the screen with the following format: "Consumer consumed item number - from position - with the value -" And to a file named Consumer activity, then exits the critical section, and repeats till the producer finishes production
- THREAD -"C LANGUAGE" ONLY Write a program that uses 5 threads. Initialize a shared variable with a value of 0. Each thread must add its Thread ID (tid) to the shared variable. Once a thread has done the addition, print the ID of the thread. It is important to make use of mutexes so that only one thread is incrementing the shared variable at a time. Output the value of the shared variable once all threads have finished incrementing it.Socket programming The application consists of two parts: Server and Client. Each part can run independently on separate computers. Server manages the chat session. It maintains a list of the active clients and forwards incoming messages. The Server is multithreaded - communication with each client is through a separate thread. When Server is started, it starts to wait for client connections. This thread continues forever to listen for clients. When a connection request is received, the server starts a thread to service the client. This is necessary for each client to have its own socket. When the thread is started, a Client object is created containing all the relevant info about each client and saved in a list. The ServiceClient() thread is where all the work is done. ServiceClient() defines the implementation of the server side of the application protocolIn this program, you manipulate a Table, having an array of doubles, which is shared between 3 threads DepositThread and 3 other threads RemoveThread. - DepositThread increments (by 1) the values of the array.- RemoveThread decrements (by 1) the values of the array.- Every DepositThread and RemoveThread has a thread name.- Before starting the incrementing or decrementing task, every thread has to introduce itself by printing a sentence as follows: THREAD thread-name is incrementing/decrementing the array... Example: "THREAD DepositTh-1 is incrementing the array..." - The table is initially filled by zeros. So, logically, at the end of threads’ job, the table values must be all zeros again. - The main thread waits till all other threads finish execution, and then it prints the resulting array elements.- Class Table is given below: Table - tab[] : double + Table()+ incTab() : void+ decTab() : void+ displayTab() : void Using java language with…
- Multi-threading A) Write a Thread class (called worker) that takes two numbers (A and B, A < B) and calculates the products of all numbers between A and B. the result is stored in a local variable than can be accessed through a get method. B) Write a main program to calculate the factorial of a given number n (). The main thread reads n from the user, then creates two instances of Worker. Each one is requested to calculate the half of numbers between 1 and n. Once they finish, the main thread will gather their results and print the final result (result1 x result2). Example when n=10Write a server and client programs that do the following based on the written pseudocode: Client Server Client create a socket that directed to port 3344, local host Server creates a server socket on port 3344 Server is capable to receive requests for more than one client at the same time.(threads) Client sends a linked list object to the server For each client , server creates a file named after containing n elements (size is given from user) generated randomly the threadID Server reads the list object and writes its content into the file created above Clients waits for the written confirmation from server , which is the number of elements found on the list object send above After writing, Server send number of elements written to the file to the client. Server closes sockets and files. Client check if number received is equal to the size of the list Client closes socketSelect all that are true regarding variables and threading. A) atomic variables ensure operations on them are all or nothing B) volatile variables disable local caching of it C) atomic variables completely eliminate race conditions D) access to volatile variables are less efficient than synchronized variables
