... U2A3: The Hero Quotation: “Life is so beautiful that death has fallen in love with it, a jealous, possessive love that grabs at what it can. But life leaps over oblivion lightly, losing only a thing or two of no importance and gloom is but the passing shadow of a cloud.” (Martel). 1) This quotation spoke to me while I was reading the book because when I put thought into it, I thought that it was a brilliant portrayal of life itself. As we grow individually, we start to learn more and develop more. There are many theories of development and it can be defined as the series of age-related changes that happen over the course of a life span. By this stage in my life I have come to realize that many people are taken too soon from us, that we lose important things in our life, and that we may be sad about it for a while but sadness and gloom are just a “…passing shadow of a cloud,” (Martel) everything is eventually going to be okay and the sun will soon shine when the shadow passes. NOTE: The variation of stage theories all share three similar characteristics: 1. People pass through stages in a specific order, with each stage building on capacities developed in the previous stage. 2. Stages are related to age. 3. Development is discontinuous, with qualitatively different capacities emerging in each stage. 2) Since development is in stages related to age I think that I have grown to learn about this through my life experiences. For example, I have lost...
Words: 1056 - Pages: 5
...Tracing Narrative Threads 1) Father’s admonitions to stay away from the tiger in the zoo. During this part of the novel, Pi’s father is teaching him a lesson by letting a tiger brutally kill a goat right in front of him. He is trying to teach Pi to not go near an animal such as tigers because they are incredibly dangerous. I believe this thread represents the foreshadowing of what is to come for Pi. When Pi and Ravi’s father was telling them about staying away from tigers he said “Tigers are very dangerous. I want you to understand that you are never—under any circumstances—to touch a tiger, to pet a tiger, to put your hands through the bars of a cage, even to get close to a cage. Is that clear?” (37) This evidence indicates that tigers are extremely dangerous and any contact with them can cause serious injury. This thread develops and changes throughout the novel because later on Pi is stuck on a lifeboat with a tiger and doesn’t really have a choice whether or not he has to go near it. Pi needs to decide whether he is going to listen to his father’s lesson or fight for his life. Pi spends most of his days on the lifeboat training Richard Parker to let him on the lifeboat more often and establish dominance over him. Pi soon learns that Richard Parker is not as big of a threat as his father made him out to be. 2) The name ‘Pi’ As a child, one of Pi’s biggest concerns was defending his name because all of his classmates always teased him about his name, calling him...
Words: 714 - Pages: 3
...Daniel Van Boerdonk ! Life of Pi Chapter 1 The first chapter of Life of Pi is a very brief chapter that gets the reader thinking about Pi, from a spiritual and academic point of view. The overall mood of the chapter seems to be a grim type feeling with Pi reflecting about life before his hospital visit amongst other things. Pi mentions Richard Parker who at this point is an unknown person, and seems to be sad about the absence of him in his life. He states “Richard Parker has stayed with me. I've never forgotten him. Dare I say I miss him? I do. I miss him. I still see him in my dreams. They are nightmares mostly, but nightmares tinged with love.” (Martel 6) This quote contributes to the idea of a grim reflective chapter. ! The conflict in chapter one tends to revolve around Pi getting over his difficult past. He constantly mentions life before the hospital and seems to be having a very difficult time overcoming it. He obviously is having an unbearable time trying to comprehend why Richard Parker is not a part of his life anymore; proof of this is when he says “I still cannot understand how he could abandon me so unceremoniously, without any sort of goodbye, without looking back even once. That pain is like an axe that chops at my heart.”(Martel 6) The conflict in this chapter seems to entirely revolve around Pi reflecting on his miseries proving that he can’t get over his past. ! The author seems to emphasize points regarding the setting throughout...
Words: 408 - Pages: 2
...2.5 SCHEDULING When a computer is multiprogrammed, it frequently has multiple processes competing for the CPU at the same time. This situation occurs whenever two or more processes are simultaneously in the ready state. If only one CPU is available, a choice has to be made which process to run next. The part of the operating system that makes the choice is called the scheduler and the algorithm it uses is called the scheduling algorithm. These topics form the subject matter of the following sections. Many of the same issues that apply to process scheduling also apply to thread scheduling, although some are different. Initially we will focus on process scheduling. Later on we will explicitly look at thread scheduling. 2.5.1 Introduction to Scheduling Back in the old days of batch systems with input in the form of card images on a magnetic tape, the scheduling algorithm was simple: just run the next job on the tape. With timesharing systems, the scheduling algorithm became more complex because there were generally multiple users waiting for service. Some mainframes still combine batch and timesharing service, requiring the scheduler to decide whether a batch job or an interactive user at a terminal should go next. (As an aside, a batch job may be a request to run multiple programs in succession, but for this section, we will just assume it is a request to run a single program.) Because CPU time is a scarce resource on these machines, a good scheduler can make a big difference in...
Words: 8932 - Pages: 36
...THREADS MANAGEMENT IN LINUX OPERATING SYSTEM Thread of execution is the smallest sequence of programmed instructions that can be managed independently by an operating system scheduler. The scheduler itself is a light-weight process. The implementation of threads and processes differs from one operating system to another, but in most cases, a thread is contained inside a process. Multiple threads can exist within the same process and share resources such as memory, while different processes do not share these resources. In particular, the threads of a process share its code and its context . On a single processor, multithreading is generally implemented by time-division multiplexing (as in multitasking): the processor switches between different threads. This context switching generally happens frequently enough that the user perceives the threads or tasks as running at the same time. On a multiprocessor or multi-core system, threads can be truly concurrent, with every processor or core executing a separate thread simultaneously. Many modern operating systems directly support both time-sliced and multiprocessor threading with a process scheduler. The kernel of an operating system allows programmers to manipulate threads via the system call interface. Some implementations are called a kernel thread, whereas a lightweight process (LWP) is a specific type of kernel thread that shares the same state and information. Threads are created like normal tasks, with...
Words: 993 - Pages: 4
...us the second. In this special report, DevX delves into the new features being discussed by the standards team. Learn how these new features will revolutionize the way you code. Overview: C++ Gets an Overhaul It's been 10 years since the first ISO C++ standard, and 2009 will bring us the second. Learn about the new features being added and how they will revolutionize the language. Easier C++: An Introduction to Concepts C++0x concepts bring the full power of the Generic Programming paradigm to C++, making templates more expressive, easier to write, and easier to use. Spectacularly poor template error messages are a thing of the past! Simpler Multithreading in C++0x The new standard will support multithreading, with a new thread library. Find out how this will improve porting code, and reduce the number of APIs and syntaxes you use. The State of the Language: An Interview with Bjarne Stroustrup C++ founding father assesses the language on the eve of its new standard. Timeline: C++ in Retrospect From its nascent pre-processor in 1979 to today's incredibly sophisticated language features and libraries, we've documented each step along the way. C++0x: The Dawning of a New Standard Overview: C++ Gets an Overhaul Overview: C++ Gets an Overhaul C++Ox: The Dawning of a New Standard Originally from http://www.devx.com/SpecialReports/Article/38884 Overview: C++ Gets an Overhaul In this overview of the changes proposed for the new standard,...
Words: 6570 - Pages: 27
...Job Satisfaction I tend to agree with a lot of the statements in this article. I especially like the part where the one nurse wrote, “Please take the busyness of patients into account when scheduling.” This finding corresponds with Oermann and Moffitt-Wolf’s (1997) observation that new graduates experienced stress during orientation due to lack of experience, lack of organizational skills, and new situations. (Halfer & Graf, 2006) The inability to handle the intense working environment, advanced technology, and high patient acuity results in new graduate nurse turnover rates of 35% to 60%. All of this occurs within the first year of employment. Turnover has an inverse relationship to job satisfaction. As job satisfaction increases turnover decreases. Many factors influence the satisfaction of new graduates. (Halfer & Graf, 2006) New graduate nurses are leaving their current positions at an alarmingly higher rate than experienced nurses (Patterson, 2009) I do believe things can be done to change these issues. I feel it is important, though it is not always practical to involve the new staff in the scheduling process and, as the article states, include as a “Team scheduling” process, rather than a “self scheduling”. This may make more people feel involved, and although it may not solve all of the issues, such as weekends or holidays, it may be a small change that will improve job satisfaction. I wish they had something like this on the unit I work on. We...
Words: 392 - Pages: 2
...US006785889B1 (12) United States Patent Williams (10) Patent N0.: US 6 9 785 9 889 B1 (45) Date of Patent: Aug. 31, 2004 (54) SYSTEM AND METHOD FOR SCHEDULING BANDWIDTH RESOURCES USINGA KALMAN ESTIMATOR WITH ACTIVE FEEDBACK 6,003,062 A * 12/1999 Greenberg et a1. ........ .. 709/104 6,105,053 A * 6,189,022 B1 * 6,263,358 B1 * 8/2000 Kimmel et a1. ..... .. 2/2001 Binns ............. .. 7/2001 Lee et a1. .... .. 709/105 709/100 .. 709/100 Inventor: Peter Williams, * Cited examiner (73) Assignee: Aurema, Inc., Cupertino, CA (US) _ _ _ _ Primary Examiner—Jack B. Harvey ( * ) Notice: SubJect to any disclaimer,~ the term of this Patent 15 extended or adlusted under 35 U'S'C' 154(k)) by 816 days‘ Assistant Examiner_Hai V_ Nguyen (74) Attorney, Agent, or Firm—Michael Hetherington; Nick Ulman; Woodside IP Group (21) Appl. N0.: 09/596,026 (22) Filed: (51) Int C17 (52) U ' ' (57) G06F 9/00 709040 ’ ’ 718/106’ ABSTRACT Jun. 15, 2000 A community of collaborative software agents Works together in a domain to provide functionality such as pro vision of communications services or control of a chemical process. A scheduler is built into each collaborative agent Ci """""""""""" ' """"""""""" " (58) (56) Field of Search """"""""" ’ 709/104 229 718/104; 106’ ’ Which schedules tasks allocated to that particular agent and tasks sub-allocated by the agent. The scheduler has a mecha nism for over-booking...
Words: 10191 - Pages: 41
...Evaluation of the Orientation Program Question 1 Strengths · Once Simpson had accepted the job she was given a map of BANTEX Electronics and instructed to report to the company meeting room Monday at 8:30 am. Simpson was left well informed of where to go and when to be there, she was also given a map to help guide her to the designated room. · The orientation procedure was well organised · The orientation program contained a lot of information about the company and it processes; a company handbook was produced for later referral. · After orientation Simpson felt enthusiastic about her new employer. · During the orientation there is a chance for clarification. Weaknesses · Simpson felt she had been given a tremendous amount of information to digest in a very short time · Simpson wasn't sure which parts of the information she had been given, that needed to be known right away. · Simpson felt anxious after the orientation about her impending job responsibilities. · Simpson wasn't told who too contact if she had further questions or queries. You need to ensure that you clearly identify what are strengths and what are weaknesses – the easiest way is to have sub- headings The most important part of this question (other than of course identifying what the strengths and the weaknesses are – is to explain WHY!!! At the Diploma level, you are expected to demonstrate your analytical skills – so there is no point just saying what the issue is – you need to explain why...
Words: 536 - Pages: 3
...A Road Map Through Nachos Thomas Narten Department of Computer Sciences Levine Science Research Center Duke University Box 90129 Durham, N.C. 27708-0129 narten@cs.duke.edu January 4, 1995 Abstract Nachos is instructional software that allows students to examine, modify and execute operating system software. Nachos provides a skeletal operating system that supports threads, user-level processes, virtual memory and interrupt-driven input output devices. Nachos is a complex piece of software and it is di cult for beginning students (and instructors) to easily gain on overall understanding of the various system pieces and how they t together. This document provides a road map to understanding the Nachos system. It gives a high-level overview of the source code, focusing on the big picture rather than on the details. It is not intended as a replacement for reading the source code. Rather, it is a companion that is intended to help students (and instructors) overcome the initial learning curve encountered when learning and using the system. Contents 1 Introduction to Nachos 2 Nachos Machine 2.1 2.2 2.3 2.4 Machine Components : : : : : : Interrupt Management : : : : : Real-Time Clock Interrupts : : Address Translation : : : : : : : 2.4.1 Linear Page Tables : : : 2.4.2 Software Managed TLB 2.5 Console Device : : : : : : : : : 2.6 Disk Device : : : : : : : : : : : 1 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : :...
Words: 8320 - Pages: 34
...allocate and schedule and the foundation of operation system architecture. (2)Process is a data structure to represent the inherent laws of dynamic system clearly and manage and schedule the run of program efficiently in the main memory of computer system. 2. (1)Thread is the minimum unit to operate and schedule in the operation system and it is the actual execution unit in the process. (2)Thread manage the file and control the communication in servers and deal with foreground and background program asynchronously. 3. The difference between process and thread are as follows: (1) The address space and other resources of different processes are independent, however, different threads share the resources in a process. (2) Process communicate with other processes under IPC, however, threads can read and write the data segment in process to communicate with each other. (3) The switch of context in thread is much faster than that in process. (4) Process is not a executable entity in a multithreaded operation system, but thread is. 4. Benefits: (1) It is easier to schedule and manage with process and thread. (2) It can be easy and efficient to achieve concurrency through threads. Process can create multiple threads to execute different parts of the same program. (3)It can develop the function of multi-processors fully and enable the concurrency of programs through the creation of multithreaded...
Words: 255 - Pages: 2
...Homework #2 43. Measurements of a certain system have shown that the average process runs for a time T before blocking on I/O. A process switch requires a time S, which is effectively wasted (overhead). For round-robin scheduling with quantum Q, give a formula for the CPU efficiency for each of the following: a. Q=∞ Answer: No involuntary context switches will occur. Each process will pay 1 context switch per CPU burst. Efficiency=TT+S b. Q>T Answer: As long as the quantum Q is larger than T, then no involuntary context switches will occur. Efficiency=TT+S c. S<Q<T Answer: Efficiency=QQ+S d. Q=S Answer: Efficiency=QQ+S=Q=50% e. Q nearly 0 Answer: Efficiency=0% 44. Five jobs are waiting to be run. Their expected run times are 9, 6, 3, 5, and X. In what order should they be run to minimize average response time? (Your answer will depend on X.) Answer: For X, 3, 5, 6, 9 order: 0<X≤3 For 3, X, 5, 6, 9 order: 3<X≤5 For 3, 5, X, 6, 9 order: 5<X≤6 For 3, 5, 6, X, 9 order: 6<X≤9 For 3, 5, 6, 9, X order: 9<X 45. Five batch jobs. A through E, arrive at a computer center at almost the same time. They have estimated running times of 10, 6, 2, 4, and 8 minutes. Their (externally determined) priorities are 3, 5, 2, 1, and 4, respectively, with 5 being the highest priority. For each of the following scheduling algorithms, determine the mean process turnaround time. Ignore process switching overhead...
Words: 1007 - Pages: 5
...concurrent processing adds to an OS. (10 points) Answer) 1. Processes and system resources should protected from each other. 2. More than one process executing concurrently for protect performance degradation 3. It occurs deadlocks. So you can m Chapter 4: 4. Provide a programming example where multithreading does not provide better performance than a single-threaded solution. (5 points) Answer) Sequential program is not good at threaded. So example is Shell program. 5. Can a multithreaded solution using multiple user-level threads achieve better performance on a multiprocessor system than on a single-processor system? How does this change if kernel-level threads are used? Explain. (10 points) Answer) multiple user-level threads cannot make different processors in multiprocessor system at the same time. So, it shows lower performance. But If change kernel-level threads, it can make different processors at the same time. It is good at multiprocessor system Chapter 5 complications 6. Discuss how the following pairs of scheduling criteria conflict in certain settings. (15 points) a....
Words: 662 - Pages: 3
...1. |Round robin scheduling is essentially the preemptive version of __________fsecond | | | | |1) |FIFO | |2) |Shortest job first | |3) |Shortest remaining | |4) |Longest time first | | |Correct Answer: FIFO [hide] | | | |Marks: 1 | | | | | | | | | | |2. |A page fault occurs | | | |1) |when the page is not in the memory | |2) |when the page is in the memory | |3) |when...
Words: 2016 - Pages: 9
...APPLICANT INTERVIEW RATING SHEET Position: General Office Support Staff Applicant name:_________________________ Questions (Allow 20-30 minutes) Comments 1-low, 6-high Secretarial Skills 1. Using past work experience, discuss how you might handle a situation where you are asked to do several tasks at the same time to meet staff needs. 1--2--3--4--5--6 2. What kind of supervision have you had in the past and how have you responded to it? 1--2--3--4--5--6 3. Your reception duties will call for you to hand numerous questions from students and staff. How would you handle questions that go beyond your knowledge? 1--2--3--4--5--6 Interpersonal Skills 4. Drawing from past work experience, describe several situations where you had to interact with "difficult people" and how you handled the situations. 1--2--3--4--5--6 5. Comment on the following: "Students are the most important people in our business." 1--2--3--4--5--6 6. This office is many times "all things to all people." How do you see your skills and personality fitting into that expectation? 1--2--3--4--5--6 Professional Ethics/Behavior 7. Tell us how you have handled past work situations that required "confidentiality." How might that procedure impact this office? 1--2--3--4--5--6 8. Discuss your understanding of the word "teamwork" and how you have been involved with that process on the job or in other settings. How might teamwork (or lack of it) affect an office...
Words: 323 - Pages: 2
