{"id":326134,"date":"2023-03-09T04:00:00","date_gmt":"2023-03-09T03:00:00","guid":{"rendered":"https:\/\/blog.jetbrains.com\/?post_type=scala&#038;p=326134"},"modified":"2023-03-07T07:40:15","modified_gmt":"2023-03-07T06:40:15","slug":"performance-tips-for-intellij-scala-plugin","status":"publish","type":"scala","link":"https:\/\/blog.jetbrains.com\/zh-hans\/scala\/2023\/03\/09\/performance-tips-for-intellij-scala-plugin\/","title":{"rendered":"IntelliJ Scala \u63d2\u4ef6\u6027\u80fd\u63d0\u793a"},"content":{"rendered":"<p>\u5728\u666e\u901a\u7b14\u8bb0\u672c\u7535\u8111\u4e0a\uff0c\u6210\u719f IDE \u4f1a\u662f\u6700\u590d\u6742\u7684\u4e00\u79cd\u5e94\u7528\u7a0b\u5e8f\u3002 \u56e0\u6b64\uff0cJetBrains \u7684 Scala \u63d2\u4ef6\u56e2\u961f\u4e0d\u65f6\u6536\u5230\u62a5\u544a\uff0c\u8bf4\u6211\u4eec\u7684\u4ea7\u54c1\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u51fa\u73b0\u5ef6\u8fdf\u6216\u8005\u603b\u4f53\u4e0a\u8fd0\u884c\u7f13\u6162\u3002 \u6211\u4eec\u6709\u65f6\u53ef\u4ee5\u63d0\u4f9b\u5e2e\u52a9\uff0c\u4f46\u53e6\u4e00\u4e9b\u65f6\u5019\uff0c\u6bd4\u5982\u60a8\u7684\u4ee3\u7801\u5e93\u5e9e\u5927\u590d\u6742\uff0c\u6216\u8005\u673a\u5668\u8f83\u4e3a\u9648\u65e7\u65f6\uff0c\u6211\u4eec\u4e5f\u65e0\u80fd\u4e3a\u529b\u3002 \u4e3a\u6b64\uff0c\u60a8\u53ef\u4ee5\u4eb2\u81ea\u52a8\u624b\u5c1d\u8bd5\u6539\u5584 IntelliJ IDEA \u548c Scala \u63d2\u4ef6\u4f53\u9a8c\uff0c\u4f8b\u5982\u5b9e\u73b0\u914d\u7f6e\u8c03\u6574\u548c\u4fdd\u6301\u826f\u597d\u7684\u7f16\u7801\u4e60\u60ef\u3002 \u6211\u4eec\u63a5\u4e0b\u6765\u5c06\u7b80\u8981\u4ecb\u7ecd\u4e00\u4e9b\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-319236\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/01\/performance1.png\" alt=\"\" width=\"900\" height=\"292\" \/><\/figure>\n<p><!--more--><\/p>\n<p>\u9996\u5148\uff0c\u6765\u770b IntelliJ IDEA \u4e2d\u6027\u80fd\u81f3\u5173\u91cd\u8981\u7684\u4e24\u4e2a\u4e3b\u8981\u9886\u57df\uff1a<\/p>\n<ol>\n<li>\u521b\u5efa\u6216\u6253\u5f00\u9879\u76ee\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u65f6\u523b\u3002 \u8fd9\u6d89\u53ca\u5185\u5b58\u7ba1\u7406\u3002<\/li>\n<li>\u7b2c\u4e8c\u4e2a\u4e0e\u590d\u6742\u903b\u8f91\u6709\u5173\uff0c\u5f53 Scala \u63d2\u4ef6\u8bd5\u56fe\u8bc6\u522b\u5e76\u9ad8\u4eae\u663e\u793a\u9519\u8bef\u548c\u8b66\u544a\u6216\u663e\u793a\u6539\u8fdb\u4ee3\u7801\u7684\u63d0\u793a\u65f6\uff0c\u4ee5\u53ca\u5f53\u60a8\u6267\u884c Scala \u63d2\u4ef6\u63d0\u4f9b\u7684\u4e00\u9879\u64cd\u4f5c\u548c\u81ea\u52a8\u7f16\u8f91\u5927\u90e8\u5206\u4ee3\u7801\u65f6\uff0cCPU \u4f1a\u9ad8\u5f3a\u5ea6\u8fd0\u884c\u3002<\/li>\n<\/ol>\n<p>\u5728\u8fd9\u4e24\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u90fd\u53ef\u4ee5\u901a\u8fc7\u76f8\u4f3c\u7684\u65b9\u5f0f\u63d0\u5347\u6027\u80fd\u3002 \u6211\u4eec\u53ef\u4ee5\uff1a<\/p>\n<ul>\n<li>\u4e3a IntelliJ IDEA \u5206\u914d<strong>\u66f4\u591a\u8d44\u6e90<\/strong>\uff0c<\/li>\n<li>\u7981\u7528\u4e0d\u4f7f\u7528\u7684<strong>\u68c0\u67e5<\/strong>\uff0c<\/li>\n<li>\u6539\u8fdb<strong>\u7f16\u7801\u505a\u6cd5<\/strong>\uff0c<\/li>\n<li>\u7981\u7528\u4e00\u4e9b<strong>\u529f\u80fd<\/strong>\u3002<\/li>\n<\/ul>\n<h2>\u8d44\u6e90<\/h2>\n<p>\u4ece\u8d44\u6e90\u5f00\u59cb\uff0c\u8fd9\u91cc\u57fa\u672c\u4e0a\u610f\u5473\u7740\u63d0\u4f9b\u66f4\u591a\u5185\u5b58\u3002 \u4f46\u662f\uff0c\u9996\u5148\uff0c\u6211\u7684\u5efa\u8bae\u662f\u542f\u7528\u5185\u5b58\u6307\u793a\u5668\u3002 \u60a8\u53ef\u4ee5\u53f3\u952e\u70b9\u51fb IntelliJ IDEA \u7684\u5e95\u90e8\u9762\u677f\uff0c\u7136\u540e\u5728\u5f39\u51fa\u83dc\u5355\u4e2d\u70b9\u51fb\u5185\u5b58\u6307\u793a\u5668\u3002 \u5b83\u4f1a\u544a\u8bc9\u60a8 IntelliJ IDEA \u5b9e\u9645\u4f7f\u7528\u4e86\u591a\u5c11\u5185\u5b58\uff0c\u8ba9\u60a8\u6309\u9700\u8bbe\u7f6e\u5185\u5b58\u5927\u5c0f\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-318295\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/01\/Screenshot-2023-01-30-at-13.42.07.png\" alt=\"\" width=\"892\" height=\"494\" \/><\/figure>\n<p>\u5982\u4eca\uff0c\u666e\u901a\u7b14\u8bb0\u672c\u7535\u8111\u6709 8 GB \u6216\u66f4\u591a RAM\uff0c\u901a\u5e38\u8db3\u4ee5\u8ba9 IntelliJ IDEA\u3001\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u548c\u64cd\u4f5c\u7cfb\u7edf\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<p>\u68c0\u67e5 IntelliJ IDEA \u5185\u5b58\u6d88\u8017\u540e\uff0c\u901a\u8fc7\u6253\u5f00 <strong>Help<\/strong>\uff08\u5e2e\u52a9\uff09\u83dc\u5355\u5e76\u9009\u62e9 <strong>Edit Custom VM Options<\/strong>\uff08\u7f16\u8f91\u81ea\u5b9a\u4e49 VM \u9009\u9879\uff09\u6765\u6253\u5f00 <code>idea.vmoptions<\/code> \u6587\u4ef6\uff0c\u5c06 <code>-Xmx<\/code> \u8bbe\u7f6e\u66f4\u6539\u4e3a\u7565\u5927\u4e8e\u5185\u5b58\u6307\u793a\u5668\u663e\u793a\u7684\u503c\u3002 \u8bf7\u6ce8\u610f\uff0c\u8d85\u8fc7\u4e00\u5b9a\u503c\u540e\uff0c\u589e\u52a0 <code>-Xmx<\/code> \u5c06\u65e0\u6cd5\u63d0\u5347\u6027\u80fd\u3002 \u5728\u8fd9\u91cc\uff0c\u589e\u52a0\u5230 4 GB \u6709\u4e00\u4e9b\u6548\u679c\uff0c\u4e4b\u540e\uff0c\u989d\u5916\u7684\u63d0\u5347\u51e0\u4e4e\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8ba1\u3002<\/p>\n<p>\u5bf9\u4e8e Scala \u63d2\u4ef6\uff0c\u5982\u679c\u60a8\u51b3\u5b9a\u4ece IntelliJ IDEA \u4e2d\u7f16\u8bd1\u5e94\u7528\uff0c\u589e\u52a0\u53ef\u7528\u5185\u5b58\u4e5f\u53ef\u80fd\u52a0\u5feb\u7f16\u8bd1\u901f\u5ea6\u3002 \u4e3a\u6b64\uff0c\u8bf7\u8f6c\u5230 <strong>Settings | Build, Execution and Deployment | Scala Compiler Server<\/strong>\uff08\u8bbe\u7f6e | \u6784\u5efa\u3001\u6267\u884c\u548c\u90e8\u7f72 | Scala \u7f16\u8bd1\u5668\u670d\u52a1\u5668\uff09\uff0c\u5e76\u4fee\u6539 VM \u9009\u9879\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-319495\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/02\/performance2.png\" alt=\"\" width=\"1978\" height=\"1436\" \/><\/figure>\n<h2>\u68c0\u67e5<\/h2>\n<p>CPU \u65b9\u9762\uff0cScala \u63d2\u4ef6\u6700\u91cd\u8981\u7684\u529f\u80fd\u4e4b\u4e00\uff08\u4e5f\u4f1a\u4f7f\u7528\u5927\u91cf CPU\uff09\u662f\u5b83\u7684\u4e00\u7ec4\u68c0\u67e5\u3002 \u68c0\u67e5\u662f\u4e00\u79cd\u903b\u8f91\uff0c\u53ef\u4ee5\u68c0\u67e5\u4ee3\u7801\uff0c\u5bfb\u627e\u7279\u5b9a\u7c7b\u578b\u7684\u95ee\u9898\u3002 \u6709\u4e9b\u95ee\u9898\u975e\u5e38\u7b80\u5355\uff0c\u6bd4\u5982\u6c38\u8fdc\u4e0d\u4f1a\u88ab\u4fee\u6539\u800c\u53ef\u88ab\u66ff\u6362\u4e3a\u4e0d\u53ef\u53d8\u503c\u7684 private \u53d8\u91cf\u3002 \u5176\u4ed6\u95ee\u9898\uff0c\u5982\u672a\u4f7f\u7528\u7684 public \u5b57\u6bb5\uff0c\u53ef\u80fd\u9700\u8981\u5f88\u957f\u65f6\u95f4\u8c03\u67e5\u3002<\/p>\n<p>\u5982\u679c\u60a8\u611f\u89c9\u90e8\u5206\u68c0\u67e5\u6ca1\u6709\u7528\u5904\uff0c\u5c06\u5176\u7981\u7528\u53ef\u80fd\u4f1a\u63d0\u9ad8\u9ad8\u4eae\u663e\u793a\u901f\u5ea6\u3002 \u60a8\u53ef\u4ee5\u8f6c\u5230 <strong>Settings | Editor | Inspections<\/strong>\uff08\u8bbe\u7f6e | \u7f16\u8f91\u5668 | \u68c0\u67e5\uff09\uff0c\u67e5\u770b\u53ef\u7528\u68c0\u67e5\u5217\u8868\uff0c\u7981\u7528\u4e0d\u9700\u8981\u7684\u68c0\u67e5\u3002 \u53e6\u5916\uff0c\u6d4f\u89c8\u8bbe\u7f6e\u4e5f\u662f\u5168\u9762\u4e86\u89e3 Scala \u63d2\u4ef6\u529f\u80fd\u7684\u597d\u673a\u4f1a\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u7a76 Scala \u63d2\u4ef6\u4f17\u591a\u68c0\u67e5\u4e2d\u7684 3 \u4e2a\u3002 \u8bf7\u6ce8\u610f\uff0c\u7981\u7528\u8fd9 3 \u4e2a\u68c0\u67e5\u5e26\u6765\u7684\u6027\u80fd\u63d0\u5347\u51e0\u4e4e\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8ba1\u3002 \u6bcf\u4e2a\u68c0\u67e5\u90fd\u53ea\u662f\u63d2\u4ef6\u903b\u8f91\u7684\u4e00\u5c0f\u90e8\u5206\uff0c\u5bf9\u4e8e\u4e0d\u540c\u7528\u6237\u53ef\u80fd\u4f1a\u4ea7\u751f\u4e0d\u540c\u7684\u5f71\u54cd\uff0c\u4f46\u591a\u5c11\u90fd\u6709\u4e9b\u4ef7\u503c\u3002<\/p>\n<ol>\n<li>Type check can be replaced by pattern matching\uff08\u7c7b\u578b\u68c0\u67e5\u53ef\u88ab\u66ff\u6362\u4e3a\u6a21\u5f0f\u5339\u914d\uff09<\/li>\n<\/ol>\n<p>\u8fd9\u4e2a\u68c0\u67e5\u4f1a\u5728\u4e00\u7cfb\u5217 if-else \u8bed\u53e5\u4e2d\u67e5\u627e\u7c7b\u578b\u68c0\u67e5\u548c\u7c7b\u578b\u8f6c\u6362\uff0c\u5e76\u5efa\u8bae\u5c06\u5176\u66ff\u6362\u4e3a\u6a21\u5f0f\u5339\u914d\u3002 \u8bf7\u6ce8\u610f\uff0c\u5373\u4f7f\u662f\u6700\u590d\u6742\u7684\u68c0\u67e5\u4e5f\u6709\u5feb\u901f\u8def\u5f84\u6765\u68c0\u67e5\u662f\u5426\u4e0d\u9002\u7528\u4e8e\u7ed9\u5b9a\u4ee3\u7801\u6bb5\uff08\u4f8b\u5982\uff0c\u5f53\u5176\u4e2d\u6ca1\u6709 <code>isInstanceOf<\/code> \u65f6\uff09\u3002 \u4f46\u662f\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u80fd\u60f3\u8981\u4f7f\u7528\u50cf\u8fd9\u6837\u7684\u4ee3\u7801\u3002\u5982\u679c\u60a8\u5e0c\u671b\u5b83\u4fdd\u6301\u8fd9\u79cd\u72b6\u6001\uff0c\u53ef\u4ee5\u8003\u8651\u7981\u7528\u68c0\u67e5\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-320876\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/02\/performance3-1.png\" alt=\"\" width=\"1479\" height=\"428\" \/><\/figure>\n<p>2. Scala 2 syntax can be replaced with Scala 3\uff08Scala 2 \u8bed\u6cd5\u53ef\u88ab\u66ff\u6362\u4e3a Scala 3\uff09<\/p>\n<p>\u53ea\u6709\u542f\u7528\u7f16\u8bd1\u5668\u9009\u9879 <code>-Xsource:3<\/code> \u65f6\uff0c\u8fd9\u4e2a\u68c0\u67e5\u624d\u6709\u6548\u3002 \u5b83\u4f1a\u62a5\u544a\u53ef\u88ab\u66ff\u6362\u4e3a Scala 3 \u7684 Scala 2 \u8bed\u6cd5\u3002 \u5982\u679c\u4e3a\u517c\u5bb9\u6027\u4f7f\u7528 <code>-Xsource:3<\/code>\uff0c\u4f46\u4e0d\u9700\u8981\u91cd\u5199\u4ee3\u7801\uff0c\u5219\u53ef\u4ee5\u5c06\u5176\u5b89\u5168\u7981\u7528\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-320887\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/02\/Screenshot-2023-02-03-at-11.29.28.png\" alt=\"\" width=\"2088\" height=\"1700\" \/><\/figure>\n<p>3. Declaration access can be weaker\uff08\u58f0\u660e\u8bbf\u95ee\u53ef\u4ee5\u66f4\u5f31\uff09\u548c Unused declaration\uff08\u672a\u4f7f\u7528\u7684\u58f0\u660e\uff09\u68c0\u67e5<\/p>\n<p>\u5bf9\u4e8e\u4ee3\u7801\u4e2d\u7684\u6bcf\u4e2a\u58f0\u660e\uff0c\u8fd9\u4e24\u4e2a\u68c0\u67e5\u90fd\u5c06\u5c1d\u8bd5\u68c0\u67e5\u58f0\u660e\u7684\u4f7f\u7528\u65b9\u5f0f\u3002 \u5982\u679c\u58f0\u660e\u4e3a public \u6216 protected\uff0c\u7b2c\u4e00\u4e2a\u5c06\u8d77\u4f5c\u7528\u3002 \u5b83\u5c06\u68c0\u67e5\u58f0\u660e\u662f\u5426\u786e\u5b9e\u5728\u81ea\u5df1\u7684\u7c7b\u3001\u7279\u5f81\u6216\u5bf9\u8c61\u7684\u4f5c\u7528\u57df\u4e4b\u5916\u4f7f\u7528\u3002 \u5982\u679c\u4e0d\u662f\uff0c\u68c0\u67e5\u5c06\u63d0\u793a\u53ef\u4ee5\u5c06\u58f0\u660e\u8bbe\u4e3a private\u3002 \u7b2c\u4e8c\u4e2a\u9002\u7528\u4e8e\u6bcf\u4e2a\u58f0\u660e \u2013 \u5b83\u4f1a\u904d\u5386\u58f0\u660e\u7684\u4f5c\u7528\u57df\u5e76\u68c0\u67e5\u5b83\u662f\u5426\u88ab\u4f7f\u7528\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-320898\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/02\/Screenshot-2023-02-03-at-11.32.20.png\" alt=\"\" width=\"2640\" height=\"876\" \/><\/figure>\n<h2>\u7f16\u7801\u505a\u6cd5<\/h2>\n<p>Scala \u8ba9\u6211\u4eec\u80fd\u591f\u4ee5\u7b80\u6d01\u7684\u65b9\u5f0f\u7f16\u5199\u590d\u6742\u4ee3\u7801\uff0c\u6211\u4eec\u503e\u5411\u4e8e\u5145\u5206\u5229\u7528\u8fd9\u4e00\u70b9\u3002 \u4f46\u8fd9\u662f\u6709\u4ee3\u4ef7\u7684\uff1a\u6211\u4eec\u7559\u7ed9 IDE \u7684\u8d8a\u591a\uff0c\u5b83\u7684\u6027\u80fd\u5c31\u8d8a\u5dee\u3002 \u5982\u4e0a\u6240\u793a\uff0c\u5728\u8bb8\u591a\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u60a8\u6267\u884c\u4e25\u683c\u7684\u7f16\u7801\u505a\u6cd5\uff0cScala \u63d2\u4ef6\u4e2d\u7684\u4e00\u4e9b\u68c0\u67e5\u53ef\u80fd\u662f\u4e0d\u5fc5\u8981\u7684\u3002 \u4e8b\u5b9e\u4e0a\uff0c\u5982\u679c\u662f\u8981\u5f04\u6e05\u695a\u58f0\u660e\u662f\u5426\u672a\u88ab\u4f7f\u7528\u6216\u8005\u53d8\u91cf\u662f\u5426\u53ef\u4ee5\u4e3a\u503c\uff0cScala \u63d2\u4ef6\u68c0\u67e5\u6240\u505a\u7684\u4e0e\u6211\u4eec\u6240\u505a\u7684\u5e76\u6ca1\u6709\u592a\u5927\u4e0d\u540c\u3002 \u6211\u4eec\u4f1a\u5728\u4f5c\u7528\u57df\u5185\u68c0\u67e5\u3002 \u6211\u4eec\u4f1a\u5c1d\u8bd5\u627e\u5230\u7591\u4f3c\u4e0e\u6b64\u76f8\u5173\u7684\u5176\u4ed6\u5143\u7d20\u3002 \u6211\u4eec\u4f1a\u67e5\u627e\u5b50\u7c7b\u3001\u9690\u5f0f\u8f6c\u6362\u7b49\u3002<\/p>\n<p>\u5982\u679c\u5ba1\u67e5\u8005\u56e0\u60a8\u4ee3\u7801\u7684\u590d\u6742\u6027\u800c\u82e6\u607c\uff0c\u8fd9\u53ef\u80fd\u8868\u660e\u60a8\u7684\u4ee3\u7801\u8fd8\u6709\u6539\u8fdb\u7a7a\u95f4\uff0c\u4f7f\u5176\u66f4\u6613\u5206\u6790\u3002 \u540c\u6837\uff0c\u5982\u679c\u60a8\u53d1\u73b0 IntelliJ IDEA \u56e0\u4e3a\u68c0\u67e5\u4ee3\u7801\u82b1\u8d39\u4e86\u592a\u957f\u65f6\u95f4\u800c\u53d8\u6162\uff0c\u8bf7\u8003\u8651\u8c03\u6574\u60a8\u7684\u7f16\u7801\u505a\u6cd5\uff1a<\/p>\n<ol>\n<li>\u4e3a\u7c7b\u3001\u65b9\u6cd5\u548c\u58f0\u660e\u8bbe\u7f6e\u9002\u5f53\u7684\u8bbf\u95ee\u4fee\u9970\u7b26\uff0c\u7f29\u5c0f\u4f5c\u7528\u57df\u3002<\/li>\n<li>\u4e0d\u8981\u8fc7\u5ea6\u4f7f\u7528\u7c7b\u578b\u63a8\u65ad\u3002<\/li>\n<li>\u9650\u5236\u9690\u5f0f\u7684\u4f7f\u7528\u3002<\/li>\n<li>\u5728\u7ec4\u4ef6\u4e0a\uff0c\u9009\u62e9\u677e\u8026\u5408\u800c\u4e0d\u662f\u7d27\u8026\u5408\uff0c\u8fd9\u6837\uff0c\u68c0\u67e5\u7684\u903b\u8f91\u5c31\u4e0d\u5fc5\u9075\u5faa\u8fc7\u591a\u8def\u5f84\u3002<\/li>\n<li>\u5728\u5927\u578b\u9879\u76ee\u4e2d\uff0c\u8003\u8651\u5c06\u4ee3\u7801\u62c6\u5206\u4e3a\u6a21\u5757\u548c\u5b50\u6a21\u5757\uff0c\u518d\u6b21\u9650\u5236\u68c0\u67e5\u8981\u8986\u76d6\u7684\u8303\u56f4\u3002<\/li>\n<\/ol>\n<p>\u60a8\u8fd8\u53ef\u4ee5\u8f6c\u5230 <strong>Settings | Languages &amp; Frameworks | Scala<\/strong>\uff08\u8bbe\u7f6e | \u8bed\u8a00\u548c\u6846\u67b6 | Scala\uff09\u4e2d\u7684 <strong>Performance<\/strong>\uff08\u6027\u80fd\uff09\u9009\u9879\u5361\uff0c\u67e5\u770b\u5176\u4e2d\u7684\u63a7\u4ef6\uff0c\u5e76\u8003\u8651\u9879\u76ee\u7684\u6027\u80fd\u662f\u5426\u4f1a\u53d7\u5230\u8fd9\u4e9b\u63a7\u4ef6\u6240\u5904\u7406\u95ee\u9898\u7684\u5f71\u54cd\u3002 \u4f8b\u5982\uff0c\u4f7f\u7528\u5f88\u591a\u9690\u5f0f\u5f62\u53c2\u65f6\uff0c\u5f04\u6e05\u695a\u5b83\u4eec\u53ef\u80fd\u9700\u8981\u5f88\u957f\u65f6\u95f4\u3002 \u6216\u8005\uff0c\u5982\u679c\u4f7f\u7528\u5927\u6587\u4ef6\uff0c\u5bf9\u4e8e\u6bcf\u4e2a\u7c7b\u548c\u65b9\u6cd5\uff0c\u5728\u4f7f\u7528\u4ee3\u7801\u793a\u4f8b\u7684\u6ce8\u91ca\u4e2d\u90fd\u6709\u4e00\u4e2a\u6587\u6863\u6761\u76ee\uff0cScala \u63d2\u4ef6\u5c06\u5c1d\u8bd5\u6b63\u786e\u9ad8\u4eae\u663e\u793a\u5b83\u3002 \u60a8\u53ef\u4ee5\u5c1d\u8bd5\u7981\u7528\u8fd9\u4e9b\u529f\u80fd\u4ee5\u53ca\u5176\u4ed6\u4e00\u4e9b\u529f\u80fd\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-319820\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/02\/performance7-1.png\" alt=\"\" width=\"2020\" height=\"1412\" \/><\/figure>\n<h2>\u529f\u80fd<\/h2>\n<p>\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4eec\u8c08\u5230\u7684\u6240\u6709\u63d0\u793a\u90fd\u53ef\u80fd\u5728\u67d0\u4e9b\u7279\u6b8a\u60c5\u51b5\u4e0b\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\u3002 \u901a\u5e38\uff0c\u5982\u679c\u673a\u5668\u8db3\u591f\u597d \u2013 \u5982\u524d\u6240\u8ff0\uff0c\u666e\u901a\u7b14\u8bb0\u672c\u7535\u8111\u5df2\u7ecf\u8db3\u591f\u597d \u2013 IntelliJ IDEA \u7684\u6027\u80fd\u5e94\u8be5\u8fd8\u4e0d\u9519\u3002 \u53ea\u6709\u5f53\u9879\u76ee\u8981\u6c42\u7279\u522b\u9ad8\u65f6\uff0c\u8fd9\u4e9b\u63d0\u793a\u624d\u4f1a\u6709\u7528\u3002<\/p>\n<p>\u4f46\u53ef\u80fd\u51fa\u4e8e\u67d0\u79cd\u539f\u56e0\uff0c\u60a8\u5fc5\u987b\u5728\u65e7\u7684\u3001\u6027\u80fd\u8f83\u5dee\u7684\u7535\u8111\u4e0a\u4f7f\u7528 IntelliJ IDEA\u3002 \u8fd9\u65f6\uff0c\u60a8\u8fd8\u53ef\u4ee5\u5c1d\u8bd5\u5176\u4ed6\u64cd\u4f5c\u6765\u6539\u5584\u4f53\u9a8c\u3002 \u8f6c\u5230 <strong>Settings | Appearance &amp; Behavior | Appearance<\/strong>\uff08\u8bbe\u7f6e | \u5916\u89c2\u4e0e\u884c\u4e3a | \u5916\u89c2\uff09\uff0c\u7981\u7528\u6297\u952f\u9f7f\u548c\u5e73\u6ed1\u6eda\u52a8\u3002 \u5b57\u4f53\u5c06\u663e\u5f97\u4e0d\u592a\u5149\u6ed1\uff0c\u6eda\u52a8\u6d4f\u89c8\u6587\u4ef6\u5185\u5bb9\u65f6\uff0c\u4e5f\u4f1a\u611f\u89c9\u4e0d\u592a\u6d41\u7545\uff0c\u4f46\u8fd9\u4e24\u79cd\u529f\u80fd\u90fd\u4f1a\u5bf9\u6027\u80fd\u4ea7\u751f\u4e00\u4e9b\u5f71\u54cd\u3002 \u5982\u679c\u8fd9\u8fd8\u4e0d\u591f\uff0c\u60a8\u53ef\u4ee5\u6253\u5f00 <strong>File<\/strong>\uff08\u6587\u4ef6\uff09\u83dc\u5355\u5e76\u542f\u7528 <strong>Power Save Mode<\/strong>\uff08\u7701\u7535\u6a21\u5f0f\uff09\u3002 \u8fd9\u5c06\u5173\u95ed IntelliJ IDEA \u7684\u8bb8\u591a\u529f\u80fd\uff0c\u6240\u4ee5\u6211\u5efa\u8bae\u53ea\u5728\u6ca1\u6709\u5176\u4ed6\u5e2e\u52a9\u7684\u60c5\u51b5\u4e0b\u624d\u8fd9\u6837\u505a\u3002<\/p>\n<p>\u5982\u679c\u8fd9\u5bf9\u60a8\u6765\u8bf4\u8fc7\u4e8e\u6781\u7aef\uff0c\u60a8\u53ef\u4ee5\u4ece JetBrains Marketplace \u5b89\u88c5 <a href=\"https:\/\/plugins.jetbrains.com\/plugin\/11941-automatic-power-saver\" target=\"_blank\" rel=\"noopener\">Automatic Power Saver \u63d2\u4ef6<\/a>\u3002 \u5b83\u53ef\u4ee5\u8ba9\u60a8\u63a7\u5236 <strong>Power Save Mode<\/strong>\uff08\u7701\u7535\u6a21\u5f0f\uff09\u4f55\u65f6\u81ea\u52a8\u6253\u5f00\u548c\u5173\u95ed\uff0c\u8ba9\u60a8\u4ecd\u7136\u53ef\u4ee5\u5728\u9700\u8981\u65f6\u4f7f\u7528 IntelliJ IDEA \u7684\u590d\u6742\u529f\u80fd\u3002<\/p>\n<p>\u53e6\u4e00\u79cd\u9009\u62e9\u662f\u7981\u7528\u7c7b\u578b\u611f\u77e5\u6ce8\u89e3\u5668\u3002 \u60a8\u53ef\u4ee5\u70b9\u51fb IntelliJ IDEA \u4e3b\u7a97\u53e3\u53f3\u4e0b\u89d2\u7684\u5c0f \u201c[T]\u201d \u7b26\u53f7\u5b8c\u6210\u6b64\u64cd\u4f5c\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-319214\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/01\/Screenshot-2023-01-31-at-11.35.16.png\" alt=\"\" width=\"896\" height=\"184\" \/><\/figure>\n<p>\u5b83\u4f1a\u963b\u6b62 Scala \u63d2\u4ef6\u68c0\u67e5\u4ee3\u7801\u4e2d\u7684\u7c7b\u578b\u3002 \u6ce8\u610f\uff0c\u5b83\u4e0d\u4f1a\u7981\u7528\u6240\u6709\u9519\u8bef\u68c0\u67e5\uff0c\u53ea\u7981\u7528\u90a3\u4e9b\u7531\u4e8e\u7c7b\u578b\u4e0d\u591a\u800c\u5bfc\u81f4\u9519\u8bef\u7684\u68c0\u67e5\uff0c\u4f8b\u5982\u5f53\u60a8\u5c1d\u8bd5\u5c06 <code>String<\/code> \u4f5c\u4e3a\u5b9e\u53c2\u4f20\u9012\u7ed9\u63a5\u53d7 <code>Int<\/code> \u7684\u65b9\u6cd5\u65f6\u3002<\/p>\n<h2>\u544a\u8bc9\u6211\u4eec\u60a8\u7684\u95ee\u9898<\/h2>\n<p>\u6700\u540e\uff0c\u5982\u679c\u60a8\u9047\u5230\u6027\u80fd\u7f13\u6162\u7684\u60c5\u51b5\uff0c\u7279\u522b\u662f\u5728\u53ef\u4ee5\u91cd\u73b0\u7684\u7279\u5b9a\u60c5\u51b5\u4e0b\uff0c\u8fd9\u53ef\u80fd\u8868\u660e Scala \u63d2\u4ef6\u5185\u90e8\u5b58\u5728\u95ee\u9898\u3002 \u8bf7\u628a\u95ee\u9898\u544a\u8bc9\u6211\u4eec\u3002 \u66f4\u597d\u7684\u65b9\u6cd5\u662f\uff0c\u5b89\u88c5 <a href=\"https:\/\/plugins.jetbrains.com\/plugin\/7819-performance-testing\" target=\"_blank\" rel=\"noopener\">Performance Testing \u63d2\u4ef6<\/a>\uff0c\u6355\u83b7\u6027\u80fd\u5feb\u7167\uff0c\u5728 <a href=\"https:\/\/youtrack.jetbrains.com\/issues\/SCL\" target=\"_blank\" rel=\"noopener\">JetBrains YouTrack \u7cfb\u7edf<\/a>\u4e2d\u521b\u5efa\u5de5\u5355\uff0c\u7136\u540e\u4e0a\u4f20\u5feb\u7167\u3002 \u60a8\u7684\u53cd\u9988\u5c06\u5e2e\u52a9\u6211\u4eec\u786e\u5b9a\u95ee\u9898\u539f\u56e0\u5e76\u52a0\u4ee5\u4fee\u6b63\uff0c\u8ba9 Scala \u63d2\u4ef6\u66f4\u9ad8\u6548\u3001\u66f4\u6613\u7528\u3002<\/p>\n<p>\u00a0<\/p>\n<p>\u672c\u535a\u6587\u82f1\u6587\u539f\u4f5c\u8005\uff1a<\/p>\n\n    <div class=\"about-author \">\n        <div class=\"about-author__box\">\n            <div class=\"row\">\n                <div class=\"about-author__box-img\">\n                    <img decoding=\"async\" src=\"https:\/\/secure.gravatar.com\/avatar\/?s=200&#038;r=g\" width=\"200\" height=\"200\" alt=\"\" loading=\"lazy\"  class=\"avatar avatar-200 wp-user-avatar wp-user-avatar-200 photo avatar-default\">\n                <\/div>\n                <div class=\"about-author__box-text\">\n                                                        <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n","protected":false},"author":1297,"featured_media":319334,"comment_status":"closed","ping_status":"closed","template":"","categories":[8058],"tags":[40,225],"cross-post-tag":[],"acf":[],"_links":{"self":[{"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/scala\/326134"}],"collection":[{"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/scala"}],"about":[{"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/types\/scala"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/users\/1297"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/comments?post=326134"}],"version-history":[{"count":4,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/scala\/326134\/revisions"}],"predecessor-version":[{"id":326138,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/scala\/326134\/revisions\/326138"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/media\/319334"}],"wp:attachment":[{"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/media?parent=326134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/categories?post=326134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/tags?post=326134"},{"taxonomy":"cross-post-tag","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/zh-hans\/wp-json\/wp\/v2\/cross-post-tag?post=326134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}