Node.js 异步程序运行结果及分析

源程序见: https://www.cnblogs.com/fitmap/p/16915027.html

运行结果：

2022-11-23T02:14:04.688Z Start main
2022-11-23T02:14:04.690Z Start promise main
2022-11-23T02:14:04.690Z Start prepare
2022-11-23T02:14:04.690Z Start promise every_0
2022-11-23T02:14:04.691Z Stop promise every_0 0.1042ms
2022-11-23T02:14:04.691Z Start promise every_1
2022-11-23T02:14:04.691Z Stop promise every_1 0.0054ms
2022-11-23T02:14:04.691Z Start promise every_2
2022-11-23T02:14:04.691Z Stop promise every_2 0.0036ms
2022-11-23T02:14:04.691Z Start promise every_3
2022-11-23T02:14:04.691Z Stop promise every_3 0.0107ms
2022-11-23T02:14:04.691Z Start promise every_4
2022-11-23T02:14:04.691Z Stop promise every_4 0.0038ms
2022-11-23T02:14:04.691Z Start promise every_5
2022-11-23T02:14:04.691Z Stop promise every_5 0.0072ms
2022-11-23T02:14:04.692Z Start promise every_6
2022-11-23T02:14:04.692Z Stop promise every_6 0.005ms
2022-11-23T02:14:04.692Z Start promise every_7
2022-11-23T02:14:04.692Z Stop promise every_7 0.004ms
2022-11-23T02:14:04.692Z Start promise every_8
2022-11-23T02:14:04.692Z Stop promise every_8 0.004ms
2022-11-23T02:14:04.692Z Start promise every_9
2022-11-23T02:14:04.692Z Stop promise every_9 0.011ms
2022-11-23T02:14:04.692Z Stop prepare 1.6465ms
2022-11-23T02:14:04.692Z Start every
2022-11-23T02:14:04.692Z Start await every_0
2022-11-23T02:14:04.692Z Start prepare
2022-11-23T02:14:04.692Z Start promise unify_0
2022-11-23T02:14:04.692Z Stop promise unify_0 0.0033ms
2022-11-23T02:14:04.692Z Start promise unify_1
2022-11-23T02:14:04.693Z Stop promise unify_1 0.0033ms
2022-11-23T02:14:04.693Z Start promise unify_2
2022-11-23T02:14:04.693Z Stop promise unify_2 0.0025ms
2022-11-23T02:14:04.693Z Start promise unify_3
2022-11-23T02:14:04.693Z Stop promise unify_3 0.0022ms
2022-11-23T02:14:04.693Z Start promise unify_4
2022-11-23T02:14:04.693Z Stop promise unify_4 0.0022ms
2022-11-23T02:14:04.693Z Start promise unify_5
2022-11-23T02:14:04.693Z Stop promise unify_5 0.0051ms
2022-11-23T02:14:04.693Z Start promise unify_6
2022-11-23T02:14:04.693Z Stop promise unify_6 0.0063ms
2022-11-23T02:14:04.693Z Start promise unify_7
2022-11-23T02:14:04.693Z Stop promise unify_7 0.0023ms
2022-11-23T02:14:04.693Z Start promise unify_8
2022-11-23T02:14:04.693Z Stop promise unify_8 0.0026ms
2022-11-23T02:14:04.693Z Start promise unify_9
2022-11-23T02:14:04.693Z Stop promise unify_9 0.0025ms
2022-11-23T02:14:04.693Z Stop prepare 0.7488ms
2022-11-23T02:14:04.693Z Start await unify
2022-11-23T02:14:04.693Z Stop promise main 3.0417ms
2022-11-23T02:14:04.693Z Start await main
2022-11-23T02:14:04.694Z Start busy_every_0
2022-11-23T02:14:04.704Z Stop busy_every_0 9.5699ms result=3671
2022-11-23T02:14:04.704Z Start busy_every_1
2022-11-23T02:14:04.713Z Stop busy_every_1 9.2686ms result=3640
2022-11-23T02:14:04.724Z Start busy_every_2
2022-11-23T02:14:04.728Z Stop busy_every_2 4.2771ms result=3666
2022-11-23T02:14:04.728Z Start busy_every_3
2022-11-23T02:14:04.733Z Stop busy_every_3 4.8357ms result=3662
2022-11-23T02:14:04.733Z Start busy_every_4
2022-11-23T02:14:04.738Z Stop busy_every_4 4.3268ms result=3691
2022-11-23T02:14:04.738Z Start busy_every_5
2022-11-23T02:14:04.742Z Stop busy_every_5 4.6036ms result=3643
2022-11-23T02:14:04.743Z Start busy_every_6
2022-11-23T02:14:04.747Z Stop busy_every_6 4.5553ms result=3717
2022-11-23T02:14:04.747Z Start busy_every_7
2022-11-23T02:14:04.752Z Stop busy_every_7 4.3657ms result=3640
2022-11-23T02:14:04.752Z Start busy_every_8
2022-11-23T02:14:04.756Z Stop busy_every_8 4.4664ms result=3696
2022-11-23T02:14:04.756Z Start busy_every_9
2022-11-23T02:14:04.760Z Stop busy_every_9 4.124ms result=3746
2022-11-23T02:14:04.760Z Start busy_unify_0
2022-11-23T02:14:04.765Z Stop busy_unify_0 4.6891ms result=3621
2022-11-23T02:14:04.765Z Start busy_unify_1
2022-11-23T02:14:04.770Z Stop busy_unify_1 4.4502ms result=3686
2022-11-23T02:14:04.770Z Start busy_unify_2
2022-11-23T02:14:04.774Z Stop busy_unify_2 4.0361ms result=3669
2022-11-23T02:14:04.774Z Start busy_unify_3
2022-11-23T02:14:04.778Z Stop busy_unify_3 4.4638ms result=3694
2022-11-23T02:14:04.778Z Start busy_unify_4
2022-11-23T02:14:04.783Z Stop busy_unify_4 4.2759ms result=3623
2022-11-23T02:14:04.783Z Start busy_unify_5
2022-11-23T02:14:04.787Z Stop busy_unify_5 4.1593ms result=3687
2022-11-23T02:14:04.787Z Start busy_unify_6
2022-11-23T02:14:04.791Z Stop busy_unify_6 4.1181ms result=3746
2022-11-23T02:14:04.791Z Start busy_unify_7
2022-11-23T02:14:04.796Z Stop busy_unify_7 4.7875ms result=3721
2022-11-23T02:14:04.796Z Start busy_unify_8
2022-11-23T02:14:04.800Z Stop busy_unify_8 4.2299ms result=3730
2022-11-23T02:14:04.800Z Start busy_unify_9
2022-11-23T02:14:04.805Z Stop busy_unify_9 4.0764ms result=3716
2022-11-23T02:14:04.805Z Stop await every_0 112.422ms
2022-11-23T02:14:04.805Z Start await every_1
2022-11-23T02:14:04.805Z Stop await every_1 0.0152ms
2022-11-23T02:14:04.805Z Start await every_2
2022-11-23T02:14:04.805Z Stop await unify 111.4805ms result=3621,3686,3669,3694,3623,3687,3746,3721,3730,3716
2022-11-23T02:14:04.805Z Stop await every_2 0.0424ms
2022-11-23T02:14:04.805Z Start await every_3
2022-11-23T02:14:04.805Z Stop await every_3 0.0033ms
2022-11-23T02:14:04.805Z Start await every_4
2022-11-23T02:14:04.805Z Stop await every_4 0.0026ms
2022-11-23T02:14:04.805Z Start await every_5
2022-11-23T02:14:04.805Z Stop await every_5 0.0023ms
2022-11-23T02:14:04.805Z Start await every_6
2022-11-23T02:14:04.805Z Stop await every_6 0.0025ms
2022-11-23T02:14:04.805Z Start await every_7
2022-11-23T02:14:04.805Z Stop await every_7 0.0024ms
2022-11-23T02:14:04.805Z Start await every_8
2022-11-23T02:14:04.805Z Stop await every_8 0.0023ms
2022-11-23T02:14:04.805Z Start await every_9
2022-11-23T02:14:04.805Z Stop await every_9 0.0023ms
2022-11-23T02:14:04.805Z Stop every 113.0735ms result=3671,3640,3666,3662,3691,3643,3717,3640,3696,3746
2022-11-23T02:14:04.805Z Stop await main 111.7481ms
2022-11-23T02:14:04.805Z Stop main 115.1154ms

分析：

共提交 21 份承诺: main, every_0~9, unify_0~9
共等待 12 份兑现: every_1~9, unify(合并了0~9), main
这些异步承诺按提交的顺序逐个执行, 合并等待承诺兑现能较早完成.

TRANSLATE with x

English

TRANSLATE with

COPY THE URL BELOW

Back

EMBED THE SNIPPET BELOW IN YOUR SITE

Enable collaborative features and customize widget: Bing Webmaster Portal
Back

此页面的语言为弗里西语

翻译为中文（简体）

• 中文（简体）
• 中文（繁体）
• 丹麦语
• 乌克兰语
• 乌尔都语
• 亚美尼亚语
• 俄语
• 保加利亚语
• 克罗地亚语
• 冰岛语
• 加泰罗尼亚语
• 匈牙利语
• 卡纳达语
• 印地语
• 印尼语
• 古吉拉特语
• 哈萨克语
• 土耳其语
• 威尔士语
• 孟加拉语
• 尼泊尔语
• 布尔语(南非荷兰语)
• 希伯来语
• 希腊语
• 库尔德语
• 德语
• 意大利语
• 拉脱维亚语
• 挪威语
• 捷克语
• 斯洛伐克语
• 斯洛文尼亚语
• 旁遮普语
• 日语
• 普什图语
• 毛利语
• 法语
• 波兰语
• 波斯语
• 泰卢固语
• 泰米尔语
• 泰语
• 海地克里奥尔语
• 爱沙尼亚语
• 瑞典语
• 立陶宛语
• 缅甸语
• 罗马尼亚语
• 老挝语
• 芬兰语
• 英语
• 荷兰语
• 萨摩亚语
• 葡萄牙语
• 西班牙语
• 越南语
• 阿塞拜疆语
• 阿姆哈拉语
• 阿尔巴尼亚语
• 阿拉伯语
• 韩语
• 马尔加什语
• 马拉地语
• 马拉雅拉姆语
• 马来语
• 马耳他语
• 高棉语

随时将弗里西语翻译为中文（简体）PRO
一律不翻译弗里西语
一律不翻译i.cnblogs.com