{"id":3873,"date":"2022-09-05T19:47:06","date_gmt":"2022-09-05T11:47:06","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=3873"},"modified":"2022-09-05T19:47:06","modified_gmt":"2022-09-05T11:47:06","slug":"%e5%8f%af%e6%95%b0%e5%be%aa%e7%8e%af%ef%bc%9f%e5%ae%89%e5%85%a8%e7%82%b9safepoint","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=3873","title":{"rendered":"\u53ef\u6570\u5faa\u73af\uff1f\u5b89\u5168\u70b9Safepoint"},"content":{"rendered":"\n<p>\u6700\u8fd1\u559c\u6b22\u770b\u6398\u91d1\uff0c\u4e0a\u9762\u770b\u5230\u4e00\u7bc7\u6587\u7ae0\uff0c\u8fd9\u91cc\u8bb0\u5f55\u4e0b<\/p>\n\n\n\n<p>\u539f\u6587\uff1a<a href=\"https:\/\/juejin.cn\/post\/7139741080597037063\">\u6ca1\u6709\u4e8c\u5341\u5e74\u529f\u529b\uff0c\u5199\u4e0d\u51faThread.sleep(0)\u8fd9\u4e00\u884c\u201c\u770b\u4f3c\u65e0\u7528\u201d\u7684\u4ee3\u7801\uff01 &#8211; \u6398\u91d1 (juejin.cn)<\/a><\/p>\n\n\n\n<p>\u662fHotSpot\u865a\u62df\u673a\u4e3a\u4e86\u907f\u514d\u5b89\u5168\u70b9\u8fc7\u591a\u5e26\u6765\u8fc7\u91cd\u7684\u8d1f\u62c5\uff0c\u5bf9\u5faa\u73af\u8fd8\u6709\u4e00\u9879\u4f18\u5316\u63aa\u65bd\uff0c\u8ba4\u4e3a\u5faa\u73af\u6b21\u6570\u8f83\u5c11\u7684\u8bdd\uff0c\u6267\u884c\u65f6\u95f4\u5e94\u8be5\u4e5f\u4e0d\u4f1a\u592a\u957f\uff0c\u6240\u4ee5<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">\u4f7f\u7528int\u7c7b\u578b\u6216\u8303\u56f4\u66f4\u5c0f\u7684\u6570\u636e\u7c7b\u578b\u4f5c\u4e3a\u7d22\u5f15\u503c\u7684\u5faa\u73af\u9ed8\u8ba4\u662f\u4e0d\u4f1a\u88ab\u653e\u7f6e\u5b89\u5168\u70b9\u7684<\/mark>\u3002\u8fd9\u79cd\u5faa\u73af\u88ab\u79f0\u4e3a\u53ef\u6570\u5faa\u73af\uff08Counted 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class=\"wp-block-code\"><code>public\u00a0class\u00a0MainTest\u00a0{\n\n\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0AtomicInteger\u00a0num\u00a0=\u00a0new\u00a0AtomicInteger(0);\n\n\u00a0\u00a0\u00a0\u00a0public\u00a0static\u00a0void\u00a0main(String&#91;]\u00a0args)\u00a0throws\u00a0InterruptedException\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Runnable\u00a0runnable=()->{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for\u00a0(int\u00a0i\u00a0=\u00a00;\u00a0i\u00a0&lt;\u00a01000000000;\u00a0i++)\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0num.getAndAdd(1);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0System.out.println(Thread.currentThread().getName()+\"\u6267\u884c\u7ed3\u675f!\");\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0};\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Thread\u00a0t1\u00a0=\u00a0new\u00a0Thread(runnable);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Thread\u00a0t2\u00a0=\u00a0new\u00a0Thread(runnable);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0t1.start();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0t2.start();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Thread.sleep(1000);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0System.out.println(\"num\u00a0=\u00a0\"\u00a0+\u00a0num);\n\u00a0\u00a0\u00a0\u00a0}\n}<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"311\" height=\"171\" src=\"https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2022\/09\/image-6.png\" alt=\"\" class=\"wp-image-3893\" srcset=\"https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2022\/09\/image-6.png 311w, https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2022\/09\/image-6-300x165.png 300w\" sizes=\"(max-width: 311px) 100vw, 311px\" \/><\/figure>\n\n\n\n<p>\u6b63\u5e38\u5e94\u8be5\u5148\u8f93\u51fanum\u7684\u503c\u7684\uff0c\u600e\u4e48\u6539\uff0c\u5faa\u73af\u53d8\u91cf\u6539\u6210long\u5c31\u884c\uff0c\u4f1a\u52a0\u4e0asafepoint<\/p>\n\n\n\n<p>\u53e6\u5916\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"766\" height=\"630\" src=\"https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2022\/09\/image-7.png\" alt=\"\" class=\"wp-image-3895\" srcset=\"https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2022\/09\/image-7.png 766w, https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2022\/09\/image-7-300x247.png 300w\" sizes=\"(max-width: 766px) 100vw, 766px\" \/><figcaption>\u8fd9\u91cc\u76844k\u5927\u5c0f\uff0c\u662f\u53ef\u4ee5\u5728ssd\u7684\u4f18\u5316\u6280\u5de7\u3002<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"255\" src=\"https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2022\/09\/image-8-1024x255.png\" alt=\"\" class=\"wp-image-3896\" srcset=\"https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2022\/09\/image-8-1024x255.png 1024w, https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2022\/09\/image-8-300x75.png 300w, https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2022\/09\/image-8-768x191.png 768w, https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2022\/09\/image-8-1536x382.png 1536w, https:\/\/www.zeroheart.xyz\/wordpress\/wp-content\/uploads\/2022\/09\/image-8.png 1997w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>https:\/\/link.juejin.cn\/?target=https%3A%2F%2Ftianchi.aliyun.com%2Fforum%2FpostDetail%3Fspm%3D5176.12586969.0.0.13714154spKjib%26postId%3D300892<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u559c\u6b22\u770b\u6398\u91d1\uff0c\u4e0a\u9762\u770b\u5230\u4e00\u7bc7\u6587\u7ae0\uff0c\u8fd9\u91cc\u8bb0\u5f55\u4e0b \u539f\u6587\uff1a\u6ca1\u6709\u4e8c\u5341\u5e74\u529f\u529b\uff0c\u5199\u4e0d\u51faThread.sleep(0)\u8fd9\u4e00\u884c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[247],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3873"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3873"}],"version-history":[{"count":21,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3873\/revisions"}],"predecessor-version":[{"id":3899,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3873\/revisions\/3899"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3873"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3873"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}