Theacceleratingdeploymentoflarge-scaleweb,cloud,BigData,andvirtualizedcomputingsystemshasintroducedseriousnewchallengesinperformanceoptimization.Untilnow,however,littlereliable,practicalinformationhasbeenavailabletoITprofessionalswhoareresponsibleforrunningthesesystemsefficientlyandcost-effectively.SystemsPerformance:EnterpriseandtheCloudisthesolution.InternationallyrenownedperformanceoptimizationexpertBrendanGreggbringstogetherstate-of-the-arttechniquesandtoolsforanalysisandtuningoflarge-scaleweb/cloudcomputingenvironments.GreggfocusesonLinux/Unix/Solarisperformanceissues,whileofferingprovenmethodologiesanddiscussingkeyissuesthatapplytoallenterpriseoperatingsystems.Coverageincludes:Modernperformanceanalysisandcapacityplanning,includingkeyissuessuchaslatencyanddynamictracingNewperformanceandreliabilitychallengesassociatedwithcloudcomputingMethodology,concepts,terminology,tools,andmetricsKeytradeoffs,includingproblemsofloadvs.architectureTuningoperatingsystems,CPUs,memory,filesystems,disks,networks,andbussesTuningvirtualizedsystemsProgramminglanguageissuesrelatedtoperformance—includingapplicationprofilingforC,C++,Java,andnode.jsBenchmarkingstrategiesandpitfalls,includingcustommicrobenchmarking
2024/2/19 0:21:35 22.56MB Systems Performance
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Mega-Fiers_2.44.unitypackageScrubbingtimevalueonPointCachemodifierwillnowupdatemeshifanimateisturnedoff.Addedoptiontomorphinspectortoshowmappingdatasoincaseoffailuresitcanhelpshowwhattheissueis.Tolerancevalueaddedtoinspector,forsomeverylargemesheswithmorphsyoumayneedtoincreasethisvalue.FixederrorintheBlenderexporterifyourmorphhadnoanimations.FixedMax2013and2014morphexporters,werecrashingonprogressivemorphtargets.FixedmissingnamesonprogressivemorphtargetsonMax2013and14exporters.FixedmissingfirsttargetpercentvalueinprogressivemorphswhenusingMax2013and14exporters.Mayaexporterupdatedsoonlyselectedblendshapeisexportedinsteadofallblendshapes.
2024/2/9 8:53:38 28.73MB Unity变形插 MegaFier2.44
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Badclimatechangemaygreatlyincreasethefragilityofthecountry.Howtoevaluatetheimpactofclimatechangeandmitigatetheimpactofclimatechangehasbecomeanurgentproblem.Withregardtotaskone,adataenvelopmentanalysis(DEA)modelisestablishedtogetthecountry'sfragility.Firstofall,weselected4climatefactorsasinputindicatorsand5outputindicators.Then,weusetheentropymethodtodeterminetheweightandthenthenationalvulnerabilityisdivided.Atthesametime,wegettheconclusionthattemperatureaffectsGDPandthetimesofarmedconflictdirectlyandaffectsthefragilityindirectly.Inviewoftasktwo,wechooseSomaliaasanobjectofstudy.First,alltheindexesaredividedinto5levelsbythemethodofclusteranalysis.Second,weselect10countriesincludingSomalia,tosolvethedecisionunitmatrix.Then,usingthemodeloftheproblemone,itisfoundthattheincreaseintemperatureandrainfallwillcausethenationalvulnerabilitytoriseanddecrease,respectively.Finally,weassign4climateindicatorsto0ofthedecisionunits,anddrawtheconclusionthatnationalvulnerabilitywillbereducedwithouttheimpactofclimatefactors.Whenitcomestotaskthree,weusetheroughsettheorytoreducetheoutputindextothenumberofarmedconflicts.Then,weusetheBPneuralnetworkmodeltopredicttheconclusion:Thereisasignificantincreaseinfragilityincasesofmuchmorearmedconflictandabnormaltemperature.Whentheaverageannualarmedconflictiscertain,thenationalvulnerabilityindexwillfaceanincreasingturningpointatthetemperatureof10.01andtherainfallof1823mm.Astotaskfour,threepoliciesonenergyreductionandemissionreductionissuedbythegovernmenthavebeenselected,andamodelofcarboncycleisestablished.TakingChinaasanexample,wecalculatetheextentofthechangeoftheaveragetemperaturebyreducingthecarbondioxideemiss
2024/1/31 1:50:43 1.21MB mei  sai
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这是MathematicsforComputerScience,MIT6.042J-Fall2010-Lecture6(MatchingProblems)的笔记PDF版(TeddyvanJerry整理),文件中有网课的地址链接。
2023/12/29 9:55:46 155KB 离散数学 mit Mathematics 笔记
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Masterthetechnicalskillsandindustryknow-howtobeginanexcitingcareerinstalling,configuring,andtroubleshootingcomputernetworkswiththecompletelyupdatedNETWORK+GUIDETONETWORKS,7E.YoucanprepareforsuccessonCompTIA'sNetwork+N10-006certificationexamwithfullymappedcoverageofallobjectives,includingprotocols,topologies,hardware,networkdesign,andtroubleshooting.Thiseditionaddressestoday'slatesttechnologywithnewfeaturesthatmakeessentialinformationeasilyaccessibleandhelpyouvisualizehigh-levelconcepts.NewOSIlayericonsvisuallylinkconceptsandtheOSImodel.Newandupdated"OntheJob"stories,ApplyingConceptsactivities,Hands-OnandCaseProjectsletyouexploreconceptsinmoredepth.TheNETWORK+GUIDETONETWORKS,7E'semphasisonreal-worldproblemsolvingprovidesthetoolsyouneedtosucceedinanycomputingenvironment.
2023/12/18 14:07:06 47.52MB Network
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DataMining:TheTextbookBy作者:CharuC.AggarwalISBN-10书号:3319141414ISBN-13书号:9783319141411Edition版本:2015出版日期:2015-04-14pages页数:(734)$89.99Thistextbookexploresthedifferentaspectsofdataminingfromthefundamentalstothecomplexdatatypesandtheirapplications,capturingthewidediversityofproblemdomainsfordataminingissues.Itgoesbeyondthetraditionalfocusondataminingproblemstointroduceadvanceddatatypessuchastext,timeseries,discretesequences,spatialdata,graphdata,andsocialnetworks.Untilnow,nosinglebookhasaddressedallthesetopicsinacomprehensiveandintegratedway.Thechaptersofthisbookfallintooneofthreecategories:Fundamentalchapters:Datamininghasfourmainproblems,whichcorrespondtoclustering,classification,associationpatternmining,andoutlieranalysis.Thesechapterscomprehensivelydiscussawidevarietyofmethodsfortheseproblems.Domainchapters:Thesechaptersdiscussthespecificmethodsusedfordifferentdomainsofdatasuchastextdata,time-seriesdata,sequencedata,graphdata,andspatialdata.Applicationchapters:Thesechaptersstudyimportantapplicationssuchasstreammining,Webmining,ranking,recommendations,socialnetworks,andprivacypreservation.Thedomainchaptersalsohaveanappliedflavor.Appropriateforbothintroductoryandadvanceddataminingcourses,DataMining:TheTextbookbalancesmathematicaldetailsandintuition.Itcontainsthenecessarymathematicaldetailsforprofessorsandresearchers,butitispresentedinasimpleandintuitivestyletoimproveaccessibilityforstudentsandindustrialpractitioners(includingthosewithalimitedmathematicalbackground).Numerousillustrations,examples,andexercisesareincluded,withanemphasisonsemanticallyinterpretableexamples.
2023/12/10 1:06:56 9.81MB network
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PetrifyisatoolforthesynthesisofboundedPetrinetsandlogicsynthesisofasynchronouscontrollers.PetrifyinitiallyperformsatokenflowanalysisofthePetrinetandproducesafinitetransitionsystem(TS).IntheinitialTS,alltransitionswiththesamelabelareconsideredasoneevent.TheTSisthentransformedandtransitionsrelabeledtofulfiltheconditionsrequiredtoobtainaPetrinetwithbisimilarortrace-equivalentbehavior.SomepropertiesforthesynthesizedPetrinetcanbeimposed(e.g.free-choice,uniquechoice,pure,state-machinedecomposable,etc.).Additionally,petrifycaninterpretthePetrinetasaSignalTransitionGraph(STG),inwhicheventsrepresentrising/fallingtransitionsofdigitalsignals.FromanSTG,petrifycansynthesizeaspeed-independentcircuitbysolvingtheproblemsofstateencoding,logicsynthesis,logicdecompositionandtechnologymappingontoagatelibrary.Petrifycanalsosynthesizecircuitundertimingassumptionsspecifiedbythedesignerorautomaticallygeneratedbythetool.PetrifyreadstheinputdescriptionfromstdinandwritestheresultingSTGtostdoutunlessotherwisespecified
2023/12/1 6:46:18 1.07MB Asynchronous Synthesis
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说明:??轴系测试程序,多通道输入输出,实现时域、频域、轴心轨迹、瀑布图等功能。
(Shaftingtestprogram,multi-channelinputandoutput,toachievetimedomain,frequencydomain,orbit,waterfallandotherfunctions.)
2023/11/3 21:29:23 23KB 瀑布图 时域 频域
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spi主机程序STM32CubeMx生成Hal库DMA发送接收intmain(void){/*USERCODEBEGIN1*//*USERCODEEND1*//*MCUConfiguration--------------------------------------------------------*//*Resetofallperipherals,InitializestheFlashinterfaceandtheSystick.*/HAL_Init();/*USERCODEBEGINInit*//*USERCODEENDInit*//*Configurethesystemclock*/SystemClock_Config();/*USERCODEBEGINSysInit*//*USERCODEENDSysInit*//*Initializeallconfiguredperipherals*/MX_GPIO_Init();MX_DMA_Init();MX_USART1_UART_Init();MX_SPI5_Init();/*USERCODEBEGIN2*/// HAL_UART_Receive_DMA(&huart1,rxBuffer,BUFFER_SIZE); /*USERCODEEND2*//*Infiniteloop*//*USERCODEBEGINWHILE*/while(1){ HAL_GPIO_WritePin(GPIOF,GPIO_PIN_6,GPIO_PIN_RESET); spi_tx[0]=6; spi_tx[1]=7; spi_tx[2]=8; spi_tx[3]=9; memset(spi_rx,0,BUFFER_SIZE); HAL_SPI_TransmitReceive_DMA(&hspi5,spi_tx,spi_rx,BUFFER_SIZE); HAL_GPIO_WritePin(GPIOF,GPIO_PIN_6,GPIO_PIN_SET); HAL_Delay(1000);/*USERCODEENDWHILE*//*USERCODEBEGIN3*/}/*USERCODEEND3*/}
2023/11/1 6:11:26 33.37MB spi DMA 主机 STM32CubeMX
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DroidSansFallback.ttfDroidSansFallback.ttfDroidSansFallback.ttfDroidSansFallback.ttf
2023/10/28 20:02:40 2.57MB DroidSansFal droidsansfal droidsansfal
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在日常工作中,钉钉打卡成了我生活中不可或缺的一部分。然而,有时候这个看似简单的任务却给我带来了不少烦恼。 每天早晚,我总是得牢记打开钉钉应用,点击"工作台",再找到"考勤打卡"进行签到。有时候因为工作忙碌,会忘记打卡,导致考勤异常,影响当月的工作评价。而且,由于我使用的是苹果手机,有时候系统更新后,钉钉的某些功能会出现异常,使得打卡变得更加麻烦。 另外,我的家人使用的是安卓手机,他们也经常抱怨钉钉打卡的繁琐。尤其是对于那些不太熟悉手机操作的长辈来说,每次打卡都是一次挑战。他们总是担心自己会操作失误,导致打卡失败。 为了解决这些烦恼,我开始思考是否可以通过编写一个全自动化脚本来实现钉钉打卡。经过一段时间的摸索和学习,我终于成功编写出了一个适用于苹果和安卓系统的钉钉打卡脚本。
2024-04-09 15:03 15KB 钉钉 钉钉打卡