建议:

必须说:如果你有任何机会，花一些钱买更好的PC(cpu)， 这是最重要的…

调整:

Some people say, that OS (Operating System) might cause much slowness. For example, XP or LINUX (or etc) was mentioned to perform 70% faster (don't know why..). Disable VCS by File > Settings > Plugins and disable the following things : CVS Integration; Git Integration; GitHub; Google Cloud ... things; Subversion Integration; hg4idea; Editor is a resource eating too (especially on Large Monitors) and slow. Make it much much faster: click Help > Edit custom VM options and add these lines : -Dsun.java2d.d3d=false -Dsun.java2d.opengl=true save it and Restart Android Studio. If Android Studio has a proxy server setting and can't reach the server then it takes a long time to build and waiting for a timeout. Removing it helps much. File > Settings > Appearance & Behavior > System settings > HTTP Proxy. Another Useful quote (from article): Modules are expensive… On my current project I had to build some libraries from scratch and had to fork some that almost fitted my needs but not quite! If that modules are not constantly modified, it’s important to have this into consideration: the time needed to compile them from scratch, or even to check if the previous individual module build is up-to-date, can be up to almost 4x greater than to simply load that dependency as a binary .jar/.aar. Hint: run the gradle build -profile for an HTML report showing where the time goes regarding the build process. Note: keep that “unnecessary” modules in your version control system for the eventuallity of a quickfix/improvement in that dependency. In your Gradle build script, use only specific Google Service, like: compile 'com.google.android.gms:play-services-maps:...' Instead of full Google Library: compile 'com.google.android.gms:play-services:...' (Compile time goes from 2 minutes to around 25 seconds). Gradle configures every project before executing tasks, regardless of whether the project is actually needed for the particular build. In global gradle.properties adding this will help much: org.gradle.configureondemand=true Surprisingly, some people say , they solved problem by reducing: 1) heapsizes to -Xmx256m (instead of higher values); 2) Emulator Ram-size (from Edit AVD > Advanced Settings);

每天的建议:

不要同时运行多个项目。 使用一次后不要关闭模拟器(每次都使用相同的模拟器运行应用程序;如果你测试大型应用，最好使用真正的手机而不是模拟器)。 每次在模拟器中运行你的应用程序后都清理你的项目-点击构建>清洁项目(或重建)，你可以使用键盘快捷键。

我尝试在相同的硬件上测试Android Studio 3.1.4的速度:Macbook Pro 2011, RAM 4Gb, SSD 240GB三星，Core i5 2.4Ghz。我在这台机器上安装了3个不同的操作系统:Windows 10, MacOS high Sierra 10.13, Ubuntu 18.04。MacOS/Ubuntu上的平均构建时间(运行命令:gradlew clean build, gradlew clean assemblerrelease)比Windows快30%左右。

On my another working machine: Core i5 3.0 Ghz 7400, RAM 16Gb, SSD 250Gb. Build time takes 4.34min on Windows 10 machine. The same project on a little bit slower processor, but with the same RAM and SSD and it is running Ubuntu 16.04 build time takes two times faster!! Well I was shocked with results, but still I choose Windows as development machine, because it's much more comfortable for me to use comfortable and usable keyboard and sotfware than on Unix like systems. And even if I had to choose between MacOS and Ubuntu - mac is really much easier to setup everything, and Ubuntu is too complex to use for usual people. Choise is up to you.

我的Android Studio不仅在一般使用时很慢，在构建时也很慢。

以下是我所做的:

卸载Android Studio(不要删除，卸载它，并检查删除SDK)。然后删除位于C:\Users\\文件夹中的Android文件夹，即:. Android, AndroidStudioX。X 通过SDK管理器卸载SDK，删除所有内容(如果有剩余的SDK文件夹，删除它们) 下载并重新安装Android Studio的最新版本(在撰写本文时为v2.1.2);只安装你需要的SDK/模拟器;

现在快了。

在此之前我的故事:

My laptop sports an Intel Core i7-3612QM and 8gig of ram. When I builded, all the 4 cores/8 threads were on 100% usage. My entire system froze until the ~10 minute wass done. Gradle took me like ~10 unproductive minutes of slow down. This is very annoying. I am using Android Studio since 1.4. There were also tremendous slow down when I copy paste code to and from, selecting menus, right-click context menus, editing manifest, editing gradle files, opening layout files, rendering in the UI Editor, etc. Its was very unusable most of the time.

Due to frustration, I did the above steps. Its fast now. Very usable just as before. I build for only ~20 seconds compare to ~10minutes before that. Also, Android Studio eats about 6gig with emulator and browser with lots of tab open, unlike before its hovering on 98% RAM usage. Not just that, I even saved 45 gigs of space for whatever reason. I only use couple of SDKs and Emulators when I checked the Android SDK folder, it occupies 45gig of space! I think the IDE is having a hard time accessing/IO on my SDK folder.

如果你已经尝试了其他给出的解决方案，仍然遇到同样的问题，可能是时候完全删除Android IDE/ sdk并重新开始了(可能需要一段时间来重新设置，但这是值得的。考虑到我已经被这种懒惰折磨了好几个月了，还让我失去了工作效率)。

我真的认为这可能是由于从那时起所做的累积补丁造成的。或者是我那碎片整理得很差的驱动器上的45g SDK文件夹。我不知道，也许我错了。

谢谢你！HTH

从Android Studio 3.5开始，一些设置可以通过以下方式进行配置:

首选项>外观和行为>系统设置>内存设置

增加内存对我有帮助:

单击“帮助” 编辑自定义虚拟机选项

Android Studio 2.1.2编辑自定义虚拟机选项

变化值

像下图:

-Xms512m    
-Xmx2560m   
-XX:MaxPermSize=700m    
-XX:ReservedCodeCacheSize=480m    
-XX:+UseCompressedOops

重启Android Studio

在您学习的过程中，诊断As的性能问题并非易事!在我的例子中，一个9215字符长的字符串数组(见下文)导致AS在我每次输入几个字符时转储线程。线程转储反过来导致AS一次冻结数秒。此错误出现在Windows 64位的AS 2.2版本中，在2.2.1中仍然出现，但在2.1中没有出现。

发现长字符串导致了我的锁定涉及了大量的试验和错误。但是，在这个过程中我学到了很多，比如:

idea.log contains excellent diagnostics (Help->Show Log in Explorer); If you see extreme, but intermittent slowdowns, suspect AS is dumping threads. This will be reported in idea.log. If threads are being dumped, the dumps will tell what code AS was executing when the problem occurred; Find out whether the problem occurs in other projects. If not: Look for unusual content in the project file you are editing when it happens (atypical indentation, long lines, overall size, special characters, etc.); Try exporting settings from another project (File->Export Settings) and importing them to the problem project (File->Import Settings); If so: If threads were dumped, consult these and text in idea.log near in time to the dump notices for details; Consult idea.log for messages about memory consumption and see other answers to this question such as https://stackoverflow.com/a/30818099/5025060 for advice regarding memory and other tunables.

顺便说一句，目前我已经通过将我的长字符串移动到一个单独的文件(一个只包含数组本身的新类)来解决上面描述的问题。我尽量不使用AS编辑这个文件:

package com.code_read.numerous;

// Stored in this separate file as workaround for but in Android Studio 2.2 and 2.2.1:
public class numstrings {

    // Array of long random numbers, pregenerated to save CPU:
    public static String[] numStrings = {

        "1994801747005006843714201906880253696522949748985326677038709789185967438890341338611514272350885327622521908597157249370879944242140791335147432026134824720740049422401084226720133085129616983462326179050524905784581311738181639680883063657881249352299873899633102883079263518571839777601914176182096937173423830949774911901873302923856537838861459241472638781656098601555557408806160767422350665857755259469740684280328594623487891856649804661311584819889021607692403556050362471700089064611736323716743369045566550043297886962382238972346803574929493941865243842713784425065710461253862400171476763748485152265818223228738602947583646715233019327072692198843646688882967198106819142520249672265351399800388354025004692933034453856310668983827639931666936938916009440796386813973983672644014904413778331910858768917928873281368985209021482683952081386327659051891824451191925471319812621259979532306720944409709629735970343666731869954034316405565091456617722086997643045624243562108799691470340913893507767740993074136786407728485289296107929206890085077392507082912846952398146667121278744316903425134851243985929053983393147017505604434867248844096413015812503568125982543971955820413742070505248547214107175178265142568846059329034952916141529583930414467212444502036542524617924549772053409654734421683144469210875898562685596220560192157362075125532254942822533743408921908929641678544642703503594074980743406344521590503045906227137661428271960131113277418339143973111082350228713746798378222516362568169460000318016326976650293881476430655341696576379350118649066871443832472485758673939055476560230899083569553163276996789822628817697832818790241925450785958610992913835742648625121141300671379995864219490095867782136575514562312355082557943388653539768674297724271799184606163161313425019700484444819066035391880746315112526037089535247330068932135889561140507915603287185585871635986744215882173808096949176219939887238887334722353676565435219071025041608367345267066726720611291582289439439612089674948098814236544937685399901819502531986223218568943243997435066143130178791000919086345646088512272404095142569642614311667312552162499433826639585939112523653901049019510191636415536463869158678443168682968868561220976836056328690236345809499227235279493834218592602537877502486405864881552717053543189719307053056816394385005456307948699769878097421584471193206705541786346321099838491406911644862584829227001243533889390554091269606738674355046945345379729891849274972515399708243414881495449271744164313389780954995533638662175281443803394130967885827452291651790131097465299047904416340363246566292581832443962169777366091769276178419242913042363067255854810045262072561262497882054411067404793283085662036333037852105588278019261992793348698449219702477068967045885370794330720954454245355308540958222825316492004461258554509240961981517193582846294254836203336025137341304408025995714446392364687275863279014867118285477989325893247306751836367684953368894347431163738410742861211279475477541038825000059684941207285338893011165006513877204119377603716863643207293943901695444037969482551395887698689973125887804501587905607600937731808334970542039068964636903217786176395609646375619848654481970892367791860451203264612717833201133436864904072748056378537459970985749678435355552142278067182133232365792401224495951897760268571948611922604355922375837544987778238789194623584535535254680741527344169337882616511606089113581933652057746108337126592702595374689971756756111067694717736394911229561144105722719640374962520460026331390332290940671029266628430146882434958107641078763479395158409336392937553836429741828629803422700786051415863869569938234773023177898087231140282878699043621587286853385344543538863846680176575820030898369777652851615637670515908885347304910473243565872464918739636453311477591108155484066595590866237425656891311608168730789287191508068168280943391188623809857749891974336067657666981798722169247806143519254933881034442491694639196165306619163668670589218273202395456712339218153069379599709284877699907448943232601989425999495118291205271538894703052937474218759295979078630049366622491626168635389072593839896835573511248649620277111886034197292219150370416314231865599090073037180634352088129486602845851146031025385976117573877636799889628310244685157927781259284499624581204368313487038197704984151463672324235759633466623345866962841874409357386712655972436268785904826885404662832395057952852032223129527277689869930541833537646239889750795361522746356839955237437406742371092053189844778455591438073185335922355656078594182187644269204458708004487782896518372050828673610973903722768428111606169275709807883199484042341569039148939656571042895897900511235866082925245585957414155456211557703308834984738389589467066787565024602550298595008588579506402296897017756315583049561492731227012775126346716028440596381695862547286594079673622699591054192184165670931182439575423162742954983282488173948326304669845817443923349833883463090802279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        ... (13 lines total) ...
}