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![敏捷培训](/images/d/img-9039.webp) | ||
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<small>部门组织敏捷培训,一整天,举办了两期了,下午的实践环节使用乐高搭建城市,自己在这两期培训中也是感悟颇丰……</small> | ||
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## 技术 | ||
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### 12 Days of OpenAI | ||
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OpenAI的发布会朴实无华,相比国内的一些发布会,没有那么多的炫技,继续看看吧,下周应该能结束,到时候再总结一下。 | ||
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Google 也没有闲着,发布了 Gemini 2。整个世界就是一个大大的瑞士卷。 | ||
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### Robyn | ||
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[sparckles/Robyn](https://github.com/sparckles/Robyn) | ||
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Robyn 是一个高性能、社区驱动和创新者友好的 Web 框架,具有 Rust 运行时。 | ||
从语法上看,和 Flask 有点像。性能更好。使用 Sqlalchemy 做 ORM。使用 Jinja2 做模板引擎。 | ||
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感觉 Python 和 Golang 的世界里就不会像 Java 那样,有一个 Spring Boot 那样大一统的框架。 | ||
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## 随笔 | ||
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### 敏捷培训 | ||
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这次敏捷培训的一个小插曲。因为现场可以参加的人数有限,所以安排了直播和视频录制的方式。 | ||
既然说到直播和录制,就会涉及音频的录制,由于当天早上比较仓促,并没对录制方案做最终的调试确认,最后录音没有录进去,只有视频。 | ||
当然直播时候是有声音的。 | ||
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由此可见,任何事情凡事预则立,不预则废。下次准备好对OBS有更深入的了解,同时也准备地更加充分一些,做好录制的准备工作。 | ||
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最近看到PMI出品的一本书 《敏捷实践指南》。比较简明扼要,值得一看. | ||
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![冬至夕阳](/images/d/img-9056.webp) | ||
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<small>冬至日的夕阳,人眼不愧为世界上最先进的图像传感器,手机的镜头是远远不能表达当时的画面感的</small> | ||
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## 思考 | ||
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### 何时做性能优化 | ||
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最近的一个思考(不说背景了):先优先功能还是优先性能?这是一个很有意思的问题。 | ||
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首先是用户体验的问题: | ||
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- 一个功能做得很好,用户会可能会觉得这个产品很好,即使性能不是很好。 | ||
- 但也有可能一个功能做得不错,但因为性能问题,用户会觉得这个产品体验不好。 | ||
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再次是成本的问题: | ||
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- 过早地优化,可能会导致成本浪费时间,因为可能这个功能并不是用户所需要的。 | ||
- 但是过晚的优化,可能会因为技术债务的累积,导致后续的优化成本更高。 | ||
- 当然最好的情况是,能够在功能开发的同时,就能够保证性能。 | ||
- 但是同时兼顾功能和性能,那就得用更优秀的工程师,那人力成本就是另外一个问题了。 | ||
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还有不道德的绩效问题: | ||
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- 程序一版写好,兼顾功能和性能,后续没有太多的优化工作,可能体现不出工程师的价值。 | ||
- 一直在优化,持续地和过去的自己做对比,可能会有更好的绩效。团队可能也有更好的获得感。 | ||
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所以说一个软件团队的决策者,往往需要在不同的方面做权衡。这可能也是软件工程的魅力所在。 | ||
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### 基础永不过时 | ||
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一个晚上被拉起来解决一个兄弟部门的工程重构问题,因此看了一些代码,感觉很多工程上的做法,能够运行,但不优雅,不简洁,不易维护。 | ||
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交流的过程中也发现,其实很多问题,在基础的书籍中都有,但是却忽略了。 | ||
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虽然我们现在涉猎的很多知识和工具都是近10年,乃至5年内的,但是很多基础的知识,往往是永不过时的。 | ||
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比如 现代 C++ 一直在迭代,比如现在用的CMake 基本上也是近10年的东西了,更不用说Kubernetes,Docker等等,还有 Git也是20年内的东西了。 | ||
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但是回到技术的本质,很多原理性的东西,并没有因为工具和技术的演进而改变。比如算法、设计模式、架构、编译原理。 | ||
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那天晚上到家后,又找出了 《Linkers and Loaders》这本书。 Stay hungry, stay foolish. | ||
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## 随笔 | ||
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### 咖啡机 | ||
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![咖啡机](/images/d/img-9061.webp) | ||
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终于在老婆大人的帮助下,家里有了舒服的放咖啡机的地方。看来以后,每天早上的咖啡就可以在家里享受了。 | ||
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因为想在家方便地喝咖啡,所以买了一个咖啡机,因为想找一个舒服的地方放置咖啡机,所以老婆大人找人定制了一个柜子,所幸屋子里面能够找到安置柜子的地方。 | ||
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### 冬至 | ||
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冬至已至,春归不远。 |