CSE306:Opera.ngSystems

Introduc.on

DonPorter

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CSE306:Opera.ngSystems

Paperwork•  Iamhandingoutasurveyonyourbackgroundandminiquiz

•  Pleasecompleteandreturnbeforeyouleave.

•  AcademichonestyhomeworkdueThurs2/11inclass

CSE306:Opera.ngSystems

WhatisanOS?•  Allofthestuffbetweenyou/yourapplicaHonandthehardware–  Kernel–  DeviceDrivers–  APIlibraries–  UI

•  Ourfocusismostlyonthekernel,withsomeaLenHontotheothers

CSE306:Opera.ngSystems

WhyOperaHngSystems?•  PrimaryGoal:DemysHfyhowcomputerswork–  LotsofabstracHonsandheurisHcsbetweenyourapplicaHonandthehardware

–  AgoodcomputerscienHstshouldunderstandwhathappensinsidethesystemwhenonetypesacommand

•  Secondary:Learnhowtowriterobustprograms–  OSeslikeLinuxhavemanyusersandworkonawiderangeofhardware

–  Dealwithsubtleissues:concurrency,consistency,etc.

CSE306:Opera.ngSystems

Labs:Learnbydoing•  Thiscourseiscodingintensive–  YoushouldknowC,orbepreparedtoremediatequickly–  Youwilllearnbasic,inlinex86assembly–  Youmustlearnonyourown/withlabpartner

•  YouwillwritemakesubstanHalmodificaHonstoxv6,asimplex86Unixvariant–  CodeiswriLentobeeasytounderstand,butlacksmanymodernOSfeatures

–  Challengingwork,butaverymarketableskill

CSE306:Opera.ngSystems

LabTeams•  Canworkalone,butbeLerwithhelp–  Noneedtobeahero

•  Chooseyourownpartners–  Piazzaalistgoodforfindingthem

•  SameforenHrecourse–  Changesonlywithinstructorpermission

CSE306:Opera.ngSystems

ChallengeProblems•  Eachlabmayincludechallengeproblems,whichyoumaycompleteforbonuspoints(generally5—10pointsoutof100)–  Unwisetoturninalablatetodochallengeproblems–  Cancompletechallengeproblemsatanypointinthesemester---evenonoldlabs

•  Indicateanychallengeproblemscompletedinchallenge.txtfile

CSE306:Opera.ngSystems

AdministraHve•  Syllabus,schedule,homework,etc.postedoncoursewebsite

•  www.cs.stonybrook.edu/~porter/courses/cse306/s16

CSE306:Opera.ngSystems

RequiredReadings•  Primarilyfromtheclasstextbook•  Shouldbecompletedbeforethelecture•  Requiredreadingmaterialmayappearontheexams,evenifnotdiscussedinlecture

•  Severalrecommended(opHonal)textswillbeposted–  SeveralfreeonSBUsafarionlinesite–  Papersyoucanprintoutorreadelectronically–  Othersonreserveatlibrary

CSE306:Opera.ngSystems

Lectures•  Discussandsupplementreadingmaterial•  Animportantchancetoclarifyissues–  QuesHonsareencouraged!

•  IexpectyoutoarrivepreparedtoanswerandaskquesHonsaboutthereadingmaterial

•  Everythinginlecturesmayappearontheexams,evenifnotinthebook

CSE306:Opera.ngSystems

Recordings•  Iusuallyrecordlecturesforstudentstoreviewlater–  NB:Thisispendinghelpfromthetechstaff.ThisroomisnotequippedwithSBcapture.

•  Assumingthisworksout,recordingsarebesteffort–  Recordingsmayfail,orgetdeletedbyaccident–  OrbedisconHnuediftoomanystudentsstopaLending

•  IneedyourfacialexpressionsandquesHonstoknowiflecturesmakesense

•  DonotusethisasasubsHtuteforclassaLendance

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CSE306:Opera.ngSystems

GuestLectures•  Seniorgraduatestudentswillgivesomelecturestogainteachingexperience–  Includingtoday!

•  ProfessorPorterwillreviewandcriHqueguestlectures(inpersonorrecorded)withguests

•  Please:–  AskquesHonsifsomethingisunclear:inclassoronpiazza–  GiveProf.Portercommentsonguests(andhislectures)---posiHveandnegaHve

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CSE306:Opera.ngSystems

Prerequisites•  CSE219(CSIII)orCSE260(CSB,Honors)•  CSE220(Systems-levelProgramming)orESE380(EmbeddedMicroprocessorDesignI)

•  Thebackgroundcoursesarenecessary–  Istronglyencouragestudentstotake(new)CSE320first

•  Insomecases,industryexperienceisok–  In-classquiz,duebeforeyouleave

•  Ifyoucan’tanswer50%ofthesequesHonsyouarenotprepared

•  Cprogramming•  BasicUnixcommand-lineproficiency

CSE306:Opera.ngSystems

CProgramming•  YoushouldhavelearnedCintheprerequisitecourses

•  Ifyouhavenotandwanttotakethecourse,youshouldread“TheCProgrammingLanguage”byKernighanandRitchiecovertocoverthisweek–  Andcompleteallexercisesinthebook

•  Ifyoucandothis,youwillbepreparedtocompletethiscourseonschedule

CSE306:Opera.ngSystems

Courseemaillist•  WewillusePiazzathissemester.Linkoncoursewebsite

•  Thisistheprimaryannouncementmedium•  Andfordiscussionsaboutcoursework–  DonotpostcodehereorothersoluHons–  Goal:EveryonecanlearnfromgeneralquesHons

•  MaterialdiscussedonthemailinglistcanbeanexamquesHon

CSE306:Opera.ngSystems

OtheradministraHvenotes•  Readsyllabuscompletely•  Subscribetotheclasspiazzaforum•  2examscover:lectures,labs,mailinglist•  EverystudentwillgetaVMforlabwork–  Youmayuseyourowncomputer,staffcan’tsupportit

•  Allstaffemailgoestocse306ta@cs.stonybrook.edu–  Exceptprivateissuesforinstructoronly

CSE306:Opera.ngSystems

SpecialOffer!•  YoucanwriteyourownexamquesHons–  Sendthemtomeinadvanceofthetest,ifIlikethem,Iwillusethem

–  DoNOTsharewithanyoneelse

CSE306:Opera.ngSystems

AcademicIntegrity•  ItakecheaHngveryseriously.Itcanendyourcareer.•  Inagrayarea,itisyourjobtostayonrightsideofline

•  Nevershowyourcodetoanyoneexceptyourpartnerandcoursestaff

•  Neverlookatanyoneelse’scode(incl.otheruniversiHes)

•  Donotdiscusscode;donotdebugeachother’scode•  Acknowledgestudentsthatgiveyougoodideas

CSE306:Opera.ngSystems

Whydowecare?•  Analogy:Thisistheprogrammingdojo–  Ifyoudon’tdoyourexercises,youwillbeunpreparedforbaLle

–  You’vewastedyourmoneyandbothofourHme–  ItbringsdishonoronthedojowhenyouloseeverybaLle

•  Similarly,alotofwhatIhavetoteach(andwhatwillmakeyouavaluableemployeewhenyougraduate)hasnoshortcut–  Howdoyoulearntopunchthroughaboard?–  YoupunchaboardoverandoverunHlyourfistgoesthroughit

CSE306:Opera.ngSystems

ProducHveFrustraHon•  Oneofthe“metaskills”thatdisHnguishesanexcellentprogrammeristheabilitytogetun-stuck–  Fixinga“heisenbug”hasthisproperty

•  Howdoyoulearnthisskill?–  Getstuckonahard,butsolvableproblem–  Learnwhichstrategieswillgetyoumovingagain

•  Ifyoutakeaquickcheat,youwon’tlearntheskillstosolvetrulyhardproblems

CSE306:Opera.ngSystems

IntegrityHomework•  ExercisesapplyingcoursepoliciesandethicstoseveralsituaHons

•  Dueinclass2/11

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CSE306:Opera.ngSystems

Lateness•  Eachstudentgets72latehours–  Listhowmanyyouuseinslack.txt–  EachdayaqerthesearegonecostsafullleLergradeontheassignment

–  Ifyouworkinateam,eachmemberloses1hourforeachhourlate

•  Itisyourresponsibilitytousethesetomanage:–  Holidays,weddings,researchdeadlines,conferencetravel,Buffymarathons,releaseofthenextZeldagame,etc.

•  3ExcepHons:illness(needdoctor’snote),deathinimmediatefamily,accommodaHonfordisability

CSE306:Opera.ngSystems

Gesnghelp•  TA’swillkeepofficehours(TBD)•  Instructorkeepsofficehours–  Notethat“byappointment”meansmoreHmeavailableondemand

CSE306:Opera.ngSystems

QuesHons?•  Remember:–  Hand-insurvey–  Doacademichonestyhomework–  Lab1comingoutsoon–  ReadingassignedforThursday