{"id":228297,"date":"2021-10-20T08:28:24","date_gmt":"2021-10-20T00:28:24","guid":{"rendered":"https:\/\/lrxjmw.cn\/?p=228297"},"modified":"2021-10-14T19:28:53","modified_gmt":"2021-10-14T11:28:53","slug":"rate-function-promql","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/rate-function-promql.html","title":{"rendered":"Rate \u51fd\u6570\u5728PromQL \u67e5\u8be2\u4e2d\u7684\u4f7f\u7528"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td style=\"padding: 5px 12px; width: 25px; font-size: 22px; text-align: center; background: #E8E8E8; line-height: 30px; color: #999;\">\u5bfc\u8bfb<\/td>\n<td style=\"padding: 10px 10px 12px; line-height: 20px;\"><strong>Rate\u7528\u4e8e\u8ba1\u7b97\u53d8\u5316\u7387\u7684\u6700\u5e38\u89c1\u51fd\u6570\u662f rate()\uff0crate() \u51fd\u6570\u7528\u4e8e\u8ba1\u7b97\u5728\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u8ba1\u6570\u5668\u6bcf\u79d2\u589e\u52a0\u91cf\u7684\u5e73\u5747\u503c\u3002<br \/>\n<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/52aba14e6292849ebc1c8bfa669bc674.jpg\" alt=\"\" width=\"600\" height=\"335\" class=\"aligncenter size-full wp-image-228298\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/52aba14e6292849ebc1c8bfa669bc674.jpg 600w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/52aba14e6292849ebc1c8bfa669bc674-300x168.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u901a\u5e38\u6765\u8bf4\u76f4\u63a5\u7ed8\u5236\u4e00\u4e2a\u539f\u59cb\u7684 Counter \u7c7b\u578b\u7684\u6307\u6807\u6570\u636e\u7528\u5904\u4e0d\u5927\uff0c\u56e0\u4e3a\u5b83\u4eec\u4f1a\u4e00\u76f4\u589e\u52a0\uff0c\u4e00\u822c\u6765\u8bf4\u662f\u4e0d\u4f1a\u53bb\u76f4\u63a5\u5173\u5fc3\u8fd9\u4e2a\u6570\u503c\u7684\uff0c\u56e0\u4e3a Counter \u4e00\u65e6\u91cd\u7f6e\uff0c\u603b\u8ba1\u6570\u5c31\u6ca1\u6709\u610f\u4e49\u4e86\uff0c\u6bd4\u5982\u6211\u4eec\u76f4\u63a5\u6267\u884c\u4e0b\u9762\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n<pre>demo_api_request_duration_seconds_count{job=\"demo\"} <\/pre>\n<p>\u53ef\u4ee5\u5f97\u5230\u4e0b\u56fe\u6240\u793a\u7684\u56fe\u5f62\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/5d1848b1aac4fed7d52eea2b3430227e.jpg\" alt=\"\" width=\"600\" height=\"313\" class=\"aligncenter size-full wp-image-228299\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/5d1848b1aac4fed7d52eea2b3430227e.jpg 600w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/5d1848b1aac4fed7d52eea2b3430227e-300x157.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u6240\u6709\u7684\u90fd\u662f\u4e0d\u65ad\u589e\u957f\u7684\uff0c\u4e00\u822c\u6765\u8bf4\u6211\u4eec\u66f4\u60f3\u8981\u77e5\u9053\u7684\u662f Counter \u6307\u6807\u7684\u53d8\u5316\u7387\uff0cPromQL \u63d0\u4f9b\u4e86\u4e0d\u540c\u7684\u51fd\u6570\u6765\u8ba1\u7b97\u53d8\u5316\u7387\u3002<\/p>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>rate<\/strong><\/div>\n<p>\u7528\u4e8e\u8ba1\u7b97\u53d8\u5316\u7387\u7684\u6700\u5e38\u89c1\u51fd\u6570\u662f rate()\uff0crate() \u51fd\u6570\u7528\u4e8e\u8ba1\u7b97\u5728\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u8ba1\u6570\u5668\u6bcf\u79d2\u589e\u52a0\u91cf\u7684\u5e73\u5747\u503c\u3002\u56e0\u4e3a\u662f\u8ba1\u7b97\u4e00\u4e2a\u65f6\u95f4\u8303\u56f4\u5185\u7684\u5e73\u5747\u503c\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u5728\u5e8f\u5217\u9009\u62e9\u5668\u4e4b\u540e\u6dfb\u52a0\u4e00\u4e2a\u8303\u56f4\u9009\u62e9\u5668\u3002<\/p>\n<p>\u4f8b\u5982\u6211\u4eec\u8981\u8ba1\u7b97 demo_api_request_duration_seconds_count \u5728\u6700\u8fd1\u4e94\u5206\u949f\u5185\u7684\u6bcf\u79d2\u5e73\u5747\u53d8\u5316\u7387\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n<pre>\r\nrate(demo_api_request_duration_seconds_count[5m]) <\/pre>\n<p>\u53ef\u4ee5\u5f97\u5230\u5982\u4e0b\u6240\u793a\u7684\u56fe\u5f62\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/11a9d11dae9f6dd9e35a069113c4a0a8.jpg\" alt=\"\" width=\"600\" height=\"316\" class=\"aligncenter size-full wp-image-228300\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/11a9d11dae9f6dd9e35a069113c4a0a8.jpg 600w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/11a9d11dae9f6dd9e35a069113c4a0a8-300x158.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u73b0\u5728\u7ed8\u5236\u7684\u56fe\u5f62\u770b\u8d77\u6765\u663e\u7136\u66f4\u52a0\u6709\u610f\u4e49\u4e86\uff0c\u8fdb\u884c rate \u8ba1\u7b97\u7684\u65f6\u5019\u662f\u9009\u62e9\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u4e0b\u7684\u7b2c\u4e00\u548c\u6700\u540e\u4e00\u4e2a\u6837\u672c\u8fdb\u884c\u8ba1\u7b97\uff0c\u4e0b\u56fe\u662f\u8868\u793a\u77ac\u65f6\u8ba1\u7b97\u7684\u8ba1\u7b97\u65b9\u5f0f\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/5f115b8e83689d43a3cdc8fcdfd30459.jpg\" alt=\"\" width=\"600\" height=\"283\" class=\"aligncenter size-full wp-image-228301\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/5f115b8e83689d43a3cdc8fcdfd30459.jpg 600w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/5f115b8e83689d43a3cdc8fcdfd30459-300x142.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u5f80\u5f80\u6211\u4eec\u9700\u8981\u7684\u662f\u7ed8\u5236\u4e00\u4e2a\u56fe\u5f62\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u8fdb\u884c\u533a\u95f4\u67e5\u8be2\uff0c\u6307\u5b9a\u4e00\u4e2a\u65f6\u95f4\u8303\u56f4\u5185\u8fdb\u884c\u591a\u6b21\u8ba1\u7b97\uff0c\u5c06\u7ed3\u679c\u4e32\u8054\u8d77\u6765\u5f62\u6210\u4e00\u4e2a\u56fe\u5f62\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/82d0d3f99591ca6994845b9acfe40bc1.jpg\" alt=\"\" width=\"600\" height=\"313\" class=\"aligncenter size-full wp-image-228302\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/82d0d3f99591ca6994845b9acfe40bc1.jpg 600w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/82d0d3f99591ca6994845b9acfe40bc1-300x157.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u5bf9\u4e8e rate() \u548c\u76f8\u5173\u51fd\u6570\u6709\u51e0\u4e2a\u9700\u8981\u8bf4\u660e\u7684\uff1a<\/p>\n<ul>\n<li>\u5f53\u88ab\u6293\u53d6\u6307\u6807\u8fdb\u7684\u7a0b\u91cd\u542f\u65f6\uff0cCounter \u6307\u6807\u53ef\u80fd\u4f1a\u91cd\u7f6e\u4e3a 0\uff0c\u4f46 rate() \u51fd\u6570\u4f1a\u81ea\u52a8\u5904\u7406\u8fd9\u4e2a\u95ee\u9898\uff0c\u5b83\u4f1a\u5047\u8bbe Counter \u6307\u6807\u7684\u503c\u53ea\u8981\u662f\u51cf\u5c11\u4e86\u5c31\u8ba4\u4e3a\u662f\u88ab\u91cd\u7f6e\u4e86\uff0c\u7136\u540e\u5b83\u53ef\u4ee5\u8c03\u6574\u540e\u7eed\u7684\u6837\u672c\uff0c\u4f8b\u5982\uff0c\u5982\u679c\u65f6\u95f4\u5e8f\u5217\u7684\u503c\u4e3a[5,10,4,6]\uff0c\u5219\u5c06\u5176\u89c6\u4e3a[5,10,14,16]\u3002<\/li>\n<li>\u53d8\u5316\u7387\u662f\u4ece\u6307\u5b9a\u7684\u65f6\u95f4\u8303\u56f4\u4e0b\u5305\u542b\u7684\u6837\u672c\u8fdb\u884c\u8ba1\u7b97\u7684\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\u8fd9\u4e2a\u65f6\u95f4\u7a97\u53e3\u7684\u8fb9\u754c\u5e76\u4e0d\u4e00\u5b9a\u5c31\u662f\u4e00\u4e2a\u6837\u672c\u6570\u636e\uff0c\u53ef\u80fd\u4f1a\u4e0d\u5b8c\u5168\u5bf9\u9f50\uff0c\u6240\u4ee5\uff0c\u5373\u4f7f\u5bf9\u4e8e\u6bcf\u6b21\u90fd\u662f\u589e\u52a0\u6574\u6570\u7684 Counter\uff0c\u4e5f\u53ef\u80fd\u8ba1\u7b97\u7ed3\u679c\u662f\u975e\u6574\u6570\u3002<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/2e7022acd4b1f5e3ccb3cda0cf3c8a8b.jpg\" alt=\"\" width=\"600\" height=\"482\" class=\"aligncenter size-full wp-image-228303\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/2e7022acd4b1f5e3ccb3cda0cf3c8a8b.jpg 600w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/2e7022acd4b1f5e3ccb3cda0cf3c8a8b-300x241.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u53e6\u5916\u6211\u4eec\u9700\u8981\u6ce8\u610f\u5f53\u628a rate() \u4e0e\u4e00\u4e2a\u805a\u5408\u8fd0\u7b97\u7b26(\u4f8b\u5982 sum())\u6216\u4e00\u4e2a\u968f\u65f6\u95f4\u805a\u5408\u7684\u51fd\u6570(\u4efb\u4f55\u4ee5 _over_time \u7ed3\u5c3e\u7684\u51fd\u6570)\u7ed3\u5408\u8d77\u6765\u4f7f\u7528\u65f6\uff0c\u603b\u662f\u5148\u53d6\u7528 rate() \u51fd\u6570\uff0c\u7136\u540e\u518d\u8fdb\u884c\u805a\u5408\uff0c\u5426\u5219\uff0c\u5f53\u4f60\u7684\u76ee\u6807\u91cd\u65b0\u542f\u52a8\u65f6\uff0crate() \u51fd\u6570\u65e0\u6cd5\u68c0\u6d4b\u5230 Counter \u7684\u91cd\u7f6e\u3002<\/p>\n<p>\u6ce8\u610f\uff1arate() \u51fd\u6570\u9700\u8981\u5728\u6307\u5b9a\u7a97\u53e3\u4e0b\u81f3\u5c11\u6709\u4e24\u4e2a\u6837\u672c\u624d\u80fd\u8ba1\u7b97\u8f93\u51fa\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u6bd4\u8f83\u597d\u7684\u505a\u6cd5\u662f\u9009\u62e9\u8303\u56f4\u7a97\u53e3\u5927\u5c0f\u81f3\u5c11\u662f\u6293\u53d6\u95f4\u9694\u76844\u500d\uff0c\u8fd9\u6837\u5373\u4f7f\u5728\u9047\u5230\u7a97\u53e3\u5bf9\u9f50\u6216\u6293\u53d6\u6545\u969c\u65f6\u4e5f\u6709\u53ef\u4ee5\u4f7f\u7528\u7684\u6837\u672c\u8fdb\u884c\u8ba1\u7b97\uff0c\u4f8b\u5982\uff0c\u5bf9\u4e8e 1 \u5206\u949f\u7684\u6293\u53d6\u95f4\u9694\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 4 \u5206\u949f\u7684 Rate \u8ba1\u7b97\uff0c\u4f46\u662f\u901a\u5e38\u5c06\u5176\u56db\u820d\u4e94\u5165\u4e3a 5 \u5206\u949f\u3002\u6240\u4ee5\u5982\u679c\u4f7f\u7528 query_range \u533a\u95f4\u67e5\u8be2\uff0c\u4f8b\u5982\u5728\u7ed8\u56fe\u4e2d\uff0c\u90a3\u4e48\u8303\u56f4\u5e94\u8be5\u81f3\u5c11\u662f\u6b65\u957f\u7684\u5927\u5c0f\uff0c\u5426\u5219\u4f1a\u4e22\u5931\u4e00\u4e9b\u6570\u636e\u3002<\/p>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>irate<\/strong><\/div>\n<p>\u7531\u4e8e\u4f7f\u7528 rate \u6216\u8005 increase \u51fd\u6570\u53bb\u8ba1\u7b97\u6837\u672c\u7684\u5e73\u5747\u589e\u957f\u901f\u7387\uff0c\u5bb9\u6613\u9677\u5165\u957f\u5c3e\u95ee\u9898\u5f53\u4e2d\uff0c\u5176\u65e0\u6cd5\u53cd\u5e94\u5728\u65f6\u95f4\u7a97\u53e3\u5185\u6837\u672c\u6570\u636e\u7684\u7a81\u53d1\u53d8\u5316\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e3b\u673a\u800c\u8a00\u5728 2 \u5206\u949f\u7684\u65f6\u95f4\u7a97\u53e3\u5185\uff0c\u53ef\u80fd\u5728\u67d0\u4e00\u4e2a\u7531\u4e8e\u8bbf\u95ee\u91cf\u6216\u8005\u5176\u5b83\u95ee\u9898\u5bfc\u81f4 CPU \u5360\u7528 100%\u7684\u60c5\u51b5\uff0c\u4f46\u662f\u901a\u8fc7\u8ba1\u7b97\u5728\u65f6\u95f4\u7a97\u53e3\u5185\u7684\u5e73\u5747\u589e\u957f\u7387\u5374\u65e0\u6cd5\u53cd\u5e94\u51fa\u8be5\u95ee\u9898\u3002<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8be5\u95ee\u9898\uff0cPromQL \u63d0\u4f9b\u4e86\u53e6\u5916\u4e00\u4e2a\u7075\u654f\u5ea6\u66f4\u9ad8\u7684\u51fd\u6570irate(v range-vector)\u3002irate \u540c\u6837\u7528\u4e8e\u8ba1\u7b97\u533a\u95f4\u5411\u91cf\u7684\u8ba1\u7b97\u7387\uff0c\u4f46\u662f\u5176\u53cd\u5e94\u51fa\u7684\u662f\u77ac\u65f6\u589e\u957f\u7387\u3002<\/p>\n<p>irate \u51fd\u6570\u662f\u901a\u8fc7\u533a\u95f4\u5411\u91cf\u4e2d\u6700\u540e\u4e24\u4e2a\u6837\u672c\u6570\u636e\u6765\u8ba1\u7b97\u533a\u95f4\u5411\u91cf\u7684\u589e\u957f\u901f\u7387\u3002\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u907f\u514d\u5728\u65f6\u95f4\u7a97\u53e3\u8303\u56f4\u5185\u7684\u957f\u5c3e\u95ee\u9898\uff0c\u5e76\u4e14\u4f53\u73b0\u51fa\u66f4\u597d\u7684\u7075\u654f\u5ea6\uff0c\u901a\u8fc7 irate \u51fd\u6570\u7ed8\u5236\u7684\u56fe\u6807\u80fd\u591f\u66f4\u597d\u7684\u53cd\u5e94\u6837\u672c\u6570\u636e\u7684\u77ac\u65f6\u53d8\u5316\u72b6\u6001\u3002\u90a3\u65e2\u7136\u662f\u4f7f\u7528\u6700\u540e\u4e24\u4e2a\u70b9\u8ba1\u7b97\uff0c\u90a3\u4e3a\u4ec0\u4e48\u8fd8\u8981\u6307\u5b9a\u7c7b\u4f3c\u4e8e [1m] \u7684\u65f6\u95f4\u8303\u56f4\u5462?\u8fd9\u4e2a [1m] \u4e0d\u662f\u7528\u6765\u8ba1\u7b97\u7684\uff0cirate \u5728\u8ba1\u7b97\u7684\u65f6\u5019\u4f1a\u6700\u591a\u5411\u524d\u5728 [1m] \u8303\u56f4\u5185\u627e\u70b9\uff0c\u5982\u679c\u8d85\u8fc7 [1m] \u6ca1\u6709\u627e\u5230\u6570\u636e\u70b9\uff0c\u8fd9\u4e2a\u70b9\u7684\u8ba1\u7b97\u5c31\u653e\u5f03\u4e86\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/4a64dfc6f25baa6727c7a01922049675.jpg\" alt=\"\" width=\"600\" height=\"262\" class=\"aligncenter size-full wp-image-228304\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/4a64dfc6f25baa6727c7a01922049675.jpg 600w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/4a64dfc6f25baa6727c7a01922049675-300x131.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u7531\u4e8e rate() \u63d0\u4f9b\u4e86\u66f4\u5e73\u6ed1\u7684\u7ed3\u679c\uff0c\u56e0\u6b64\u5728\u957f\u671f\u8d8b\u52bf\u5206\u6790\u6216\u8005\u544a\u8b66\u4e2d\u66f4\u63a8\u8350\u4f7f\u7528 rate \u51fd\u6570\uff0c\u56e0\u4e3a\u5f53\u901f\u7387\u53ea\u51fa\u73b0\u4e00\u4e2a\u77ed\u6682\u7684\u5cf0\u503c\u65f6\uff0c\u4e0d\u5e94\u8be5\u89e6\u53d1\u8be5\u62a5\u8b66\u3002<\/p>\n<p>\u4f7f\u7528 irate() \u51fd\u6570\u4e0a\u9762\u7684\u8868\u8fbe\u5f0f\u4f1a\u51fa\u73b0\u4e00\u4e9b\u77ed\u6682\u4e0b\u964d\u7684\u56fe\u5f62\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/b1bb997124a2346c04eccb14ed32c829.jpg\" alt=\"\" width=\"600\" height=\"213\" class=\"aligncenter size-full wp-image-228305\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/b1bb997124a2346c04eccb14ed32c829.jpg 600w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/b1bb997124a2346c04eccb14ed32c829-300x107.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u9664\u4e86\u8ba1\u7b97\u6bcf\u79d2\u901f\u7387\uff0c\u4f60\u8fd8\u53ef\u4ee5\u4f7f\u7528 increase() \u51fd\u6570\u67e5\u8be2\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u7684\u603b\u589e\u91cf\uff0c\u5b83\u57fa\u672c\u4e0a\u76f8\u5f53\u4e8e\u901f\u7387\u4e58\u4ee5\u65f6\u95f4\u8303\u56f4\u9009\u62e9\u5668\u4e2d\u7684\u79d2\u6570\uff1a<\/p>\n<pre>increase(demo_api_request_duration_seconds_count{job=\"demo\"}[1h]) <\/pre>\n<p>\u6bd4\u5982\u4e0a\u9762\u8868\u8fbe\u5f0f\u7684\u7ed3\u679c\u548c\u4f7f\u7528 rate() \u51fd\u6570\u8ba1\u7b97\u7684\u7ed3\u679c\u6574\u4f53\u56fe\u5f62\u8d8b\u52bf\u90fd\u662f\u4e00\u6837\u7684\uff0c\u53ea\u662f Y \u8f74\u7684\u6570\u636e\u4e0d\u4e00\u6837\u800c\u5df2\uff0c\u4e00\u4e2a\u8868\u793a\u6570\u91cf\uff0c\u4e00\u4e2a\u8868\u793a\u767e\u5206\u6bd4\u3002rate()\u3001irate() \u548c increase() \u51fd\u6570\u53ea\u80fd\u8f93\u51fa\u975e\u8d1f\u503c\u7684\u7ed3\u679c\uff0c\u5bf9\u4e8e\u8ddf\u8e2a\u4e00\u4e2a\u53ef\u4ee5\u4e0a\u5347\u6216\u4e0b\u964d\u7684\u503c\u7684\u6307\u6807(\u5982\u6e29\u5ea6\u3001\u5185\u5b58\u6216\u78c1\u76d8\u7a7a\u95f4)\uff0c\u53ef\u4ee5\u4f7f\u7528 delta() \u548c deriv() \u51fd\u6570\u6765\u4ee3\u66ff\u3002<\/p>\n<p>deriv() \u51fd\u6570\u53ef\u4ee5\u8ba1\u7b97\u4e00\u4e2a\u533a\u95f4\u5411\u91cf\u4e2d\u5404\u4e2a\u65f6\u95f4\u5e8f\u5217\u4e8c\u9636\u5bfc\u6570\uff0c\u4f7f\u7528\u7b80\u5355\u7ebf\u6027\u56de\u5f52\uff0cderiv(v range-vector) \u7684\u53c2\u6570\u662f\u4e00\u4e2a\u533a\u95f4\u5411\u91cf\uff0c\u8fd4\u56de\u4e00\u4e2a\u77ac\u65f6\u5411\u91cf\uff0c\u8fd9\u4e2a\u51fd\u6570\u4e00\u822c\u53ea\u7528\u5728 Gauge \u7c7b\u578b\u7684\u65f6\u95f4\u5e8f\u5217\u4e0a\u3002\u4f8b\u5982\uff0c\u8981\u8ba1\u7b97\u5728 15 \u5206\u949f\u7684\u7a97\u53e3\u4e0b\uff0c\u6bcf\u79d2\u949f\u78c1\u76d8\u4f7f\u7528\u91cf\u4e0a\u5347\u6216\u4e0b\u964d\u4e86\u591a\u5c11\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/33566323fa45419f320ae0f513da5975.jpg\" alt=\"\" width=\"600\" height=\"213\" class=\"aligncenter size-full wp-image-228306\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/33566323fa45419f320ae0f513da5975.jpg 600w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/33566323fa45419f320ae0f513da5975-300x107.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u8fd8\u6709\u53e6\u5916\u4e00\u4e2a predict_linear() \u51fd\u6570\u53ef\u4ee5\u9884\u6d4b\u4e00\u4e2a Gauge \u7c7b\u578b\u7684\u6307\u6807\u5728\u672a\u6765\u6307\u5b9a\u4e00\u6bb5\u65f6\u95f4\u5185\u7684\u503c\uff0c\u4f8b\u5982\u6211\u4eec\u53ef\u4ee5\u6839\u636e\u8fc7\u53bb 15 \u5206\u949f\u7684\u53d8\u5316\u60c5\u51b5\uff0c\u6765\u9884\u6d4b\u4e00\u4e2a\u5c0f\u65f6\u540e\u7684\u78c1\u76d8\u4f7f\u7528\u91cf\u662f\u591a\u5c11\uff0c\u53ef\u4ee5\u7528\u5982\u4e0b\u6240\u793a\u7684\u8868\u8fbe\u5f0f\u6765\u67e5\u8be2\uff1a<\/p>\n<pre>predict_linear(demo_disk_usage_bytes{job=\"demo\"}[15m], 3600) <\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/753dc1887794b0edb3d3bd5cfca646d8.jpg\" alt=\"\" width=\"600\" height=\"214\" class=\"aligncenter size-full wp-image-228307\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/753dc1887794b0edb3d3bd5cfca646d8.jpg 600w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2021\/10\/753dc1887794b0edb3d3bd5cfca646d8-300x107.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\u8fd9\u4e2a\u51fd\u6570\u53ef\u4ee5\u7528\u4e8e\u62a5\u8b66\uff0c\u544a\u8bc9\u6211\u4eec\u78c1\u76d8\u662f\u5426\u4f1a\u5728\u51e0\u4e2a\u5c0f\u65f6\u5019\u5185\u7528\u5b8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u901a\u5e38\u6765\u8bf4\u76f4\u63a5\u7ed8\u5236\u4e00\u4e2a\u539f\u59cb\u7684 Counter \u7c7b\u578b\u7684\u6307\u6807\u6570\u636e\u7528\u5904\u4e0d\u5927\uff0c\u56e0\u4e3a\u5b83\u4eec\u4f1a\u4e00\u76f4\u589e\u52a0\uff0c\u4e00\u822c\u6765\u8bf4\u662f\u4e0d\u4f1a\u53bb\u76f4\u63a5\u5173 [&hellip;]<\/p>\n","protected":false},"author":317,"featured_media":153461,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-228297","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/228297","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/317"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=228297"}],"version-history":[{"count":2,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/228297\/revisions"}],"predecessor-version":[{"id":228309,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/228297\/revisions\/228309"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/153461"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=228297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=228297"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=228297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}