Expert performance is not a matter of talent. It is a matter of deliberate practice.

— Based on Ericsson et al., The Role of Deliberate Practice in the Acquisition of Expert Performance (1993)

🧠 Breaking the Myth

❌ Traditional Belief

• Talent determines success
• More experience automatically means better performance

✅ What the Research Shows

• Individual differences in performance are strongly tied to accumulated deliberate practice, not innate ability
• Many traits we call “talent” are actually developed through structured training
• No stable “talent variable” has been found to explain expert-level differences across domains

过去的 2024 年过得比较安静。没有真正意义上输出什么内容，主要在学英语，然后基本忙于工作和家里的琐事。日子本应该越来越开心幸福，但自己还是过得有些一团糟。

一句话或许可以总结：「求而不得，辗转反侧」。欲望不少，自控力却仍然不够。讨好型人格和内向的性格，加上完美主义强迫症，让自己吃了不少苦头。

Anyway，终归是越来越好，也在不断进步。就算进步缓慢，也值得开心。希望 2025 年能克服自己的弱点，完成更多的目标。

I can’t believe that it is already April, again a late hello to 2023.

Until today I have came to Siemens more than 1 months. My thinking is refreshed again, I had thought it was somehow good to stay at Thundersoft because I had stocks and acted as a manager. After I came here, I don’t need to struggle with the bunch of useless things, and most of the time I can do what I like to do. Also I can have a easier work time, which almost not need to take overtime. Very happy that I decided to abandon my stocks and came here, no doubt that a big difference will be made this year.

Once I am at home, my kid will keep stick on me. Although I am still struggling with how to balance life and learning, I kind of having some ideas to make the balance and enjoy my life.

One day you’ll leave this world behind, so live a life you will remember.
- The Nights . Avicii

This year my main target is to follow my own principles and a I-will-stick-on plan with agile way. Currently my own principles are not done yet, I will publish it once it is done.

Ah… Almost 12:00 PM, I am tired and don’t want to write too much now. So this is it.

Be better, and write the yearly hello on January since 2024.

记录和总结自己的原则、思考方式和生活哲学，用来时刻提醒自己。

心态

• 明确目标，其他的留在一边。 明天你就不会再困惑和纠结。
  • 把时间当作朋友。
  • 用让自己舒服的方式做事，跟随内心。
  • 你不需要完美，也不需要满足别人的标准。
  • 认清必须做的事情并完成它：健康、成长、英语永远是最高优先级。

整体思路

学英语从来不是”学”出来的，而是”用”出来的。我的核心方法论是围绕听说读写四个方面，每天坚持输入和输出。

1. No one needs a vacation more than someone who just took a vacation.
没有比刚刚度过假的人更需要假期的了

2. Reduce non-deliberate leisure and dive into deliberate leisure.
减少被动式休闲，投入到主动式休闲之中

3. Reading is lowest cost social interaction.
读书，是最低成本的社交

4. In-depth reading is very easy to produce peace in heart.
深度阅读非常容易产生高心流

At times, fear may accompany certain things, but with repeated exposure and understanding, that fear dissipates. It’s akin to the fear of sleeping alone as a child; as you grow and become more familiar with the world, that fear gradually fades away.

Reading

If my purpose is to learn, read in the following skills:

• Pre-read the book or material super fast.
  • Preview it: Look at headings, subheadings, and any summaries or conclusions to get an overview.
  • Read a book in 5 minutes to find out what’s in it, and if it’s anything I need to know.
  • To be able to determine in 5 minutes: Should I even read this? Is this the right book?
• Ask questions.
  • How will I use this?
  • Why is this important?
  • What applications does it have for the problem that I’m trying to solve?
  • Look for what I know, and what I don’t know, and need to learn.
    • Don’t waste time learning what I do, I look for what I don’t know and need to learn.
    • Look for what I don’t understand and what is relevant to me.
    • Don’t need to know everything, I only need to know what I need to know.
      • Spent too much time trying to learn everything and then didn’t remember anything.
    • What’s important is knowing the answers to the test questions if you’re in school, or knowing what your supervisors or clients want to know if you’re in business.
  • Look for meaning and significance in what confused me, so now I understand it.
• Pay more attentions on the key things.
  • The first and last sentences or paragraphs.
    • Usually the first tells you what’s coming, and the last tells you what came.
  • The vocabulary.
    • Mainly for the English books or some key concepts.
  • Names, nouns, numbers and verbs.
    • Who is in the book and what did they do?
      • The people, things, and their actions.
    • Any number, date, statistic or formula.
      • Table, chart, diagram and so on.
  • In headers and sub-headers, what are the most important ideas in each section, the big takeaways?
  • What are the questions and answers?
• Utilize recording while reading.
  • Highlight or underline, and summarize what you’ve read.
  • Capture the main points and draw framework, organize essential data, questions as your read, filling the highlights and stories.
  • Ask questions, make predictions, and connect what you’re reading to your own experiences or knowledge tree.
  • Take notes:
    • What you are learning?
    • What is your insights?
    • How will you use what you’ve learned?
    • How did the book grab your attention and excite you?
      • A story, a joke, or a anecdote?
• Put the book aside and rehearse the content to yourself.
  • Visual concept:
    • Picture what you are learning.
    • Envision you being successful at what you’re working on
    • Imagine anything that helps.
  • Discuss, practice and teach what you’ve read.
• Repetition is key.

第一次知道《把时间当朋友》应该是两年前吧，当时觉得是可以改变人生轨迹的一本书，所以第一时间就下单买了回来。 买回来后看了一半就束之高阁了，似乎有些收获又似乎没有收获。直到最近逐渐培养出阅读的习惯了，又拿出来从头完整阅读了一遍，前不久刚好读完，虽然存在一些说教和啰嗦的地方，但仍然是一本十分值得一读的书。
作者传达的很多观点，对我来说都很是受用，譬如贯穿全文的“积累”、“坚持”、“思考”。 作者没有真正做过程序员，却有很多程序员的好习惯，也佩服于作者对时间的把控和成事的能力，印象很深刻的是：

1. 不做销售后，坚持 4 个月学习英文，取得托福等考试的高分，并入职新东方。（这种案例挺多，很多比较佩服的人都能下恒心快速学会一个领域的知识并取得成果）
2. 运用技术的能量，完成《TOEFL 核心词汇 21 天突破》并赚取百万有余。
3. 贯穿人生的积累和坚持。英文和其他信息/知识的积累，健身和写作的坚持。

接下来零散地记录一些自己觉得有意思的内容，和自己的想法。

太久没有怎么写东西了，工作忙碌，心中苦闷，家中各种事情变故。如果还是早些年抑郁的自己，估计挺过这艰难的时光会十分不容易吧。老是在感叹时光，自己还是很难珍惜，或许因为自己是个俗人吧，做不到让自己每时每刻都活得有意义，总会不经意间让时间溜掉，然后感叹“逝者如斯夫，不舍昼夜”。

2021

工作

由于工作内容和夸张的办公距离的原因，本来打算在这一年离职，最终也未成行。其实从当前公司离职这个事情想了很久，最终因为一些原因而搁浅，俗人似乎总是这样子（或许只有我自己），离职这类有些重要的事情总是会因为各种原因（更多可能是懒惰和对未知的不安）而被推迟或拖延。在这一年也出去逛了一圈，漂亮得多的工资和对等的期权，不过最终还是选择了留下来，主要有三个考量吧。

• 成为与国外客户直接交流的技术接口人，很贴合一直以来学好英语的意愿。
• 工资加上股票等收入后，整体收入还算不错的。
• 成为 Manager 和项目 Leader，想走出舒适区，挑战一下自己的性格弱点。
  Read more »

What does SDK mean in current context?

很多时候，我们需要闭源一部分源码， 然后再把整个源码仓库共享给指定人员。这个源码仓库就称之为 SDK。

How to make SDK based on Yocto build system

根据目前的调查结论，基于 Yocto 编译系统做 SDK 主要有如下三种方式，本文主要介绍第一种方式，也会稍微介绍下第二、三种方式。

• 将闭源部分源码做成 prebuilt 包;
• 重写 do_install 任务直接安装闭源部分源码生成的 deb 包;
• 将源码编译成二进制并替换，修改 Makefile 文件。

最开始倾向于以 2、3 的方式来做 SDK， 深入调查后发现 1 才是最合适的方式，原因有三：

• 高通有开发一个基于 qprebuilt.bbclass 类来实现的半成品 prebuilt 功能， 而且高通的闭源源码也是按照这种方式处理的。
• 直接安装预编译的 deb 包是一个糟糕的决定，会给以后带来很多不确定性和不可追溯性。
• 编译二进制并替换的方式在 Yocto 中逻辑更为复杂，且不符合官方推荐的标准做法。

Create Prebuilt tarball

制作预编译包是官方比较推荐的一种方式，详细过程请查看 “Lessons and Gains of making prebuilt sdk” 部分。现以 RB5 LU 为例将准备步骤简单总结如下，其分为两种情况：

• 可以生成中间产物，用中间产物创建；
• 不能生成中间产物，直接取最终产物创建。

我们也可以跳过第一种情况，直接按照第二种方式准备所有模块的预编译包，可以直接跳过如下第 2 步。

1. 找到并修改闭源代码对应的 bb 文件, 添加如下两行代码。

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# RB5 LU 需要修改如下文件：
# poky/meta-qti-bsp-prop/classes/qprebuilt.bbclass
# poky/meta-qti-bsp-prop/recipes-bsp/sensors/sensors-see_git.bb
# poky/meta-qti-bt/recipes/bt-app/bt-app_git.bb
# poky/meta-qti-bt/recipes/bt-cert/bt-cert_git.bb
# poky/meta-qti-bt/recipes/bthost-ipc/bthost-ipc_git.bb
# poky/meta-qti-bt/recipes/fluoride/fluoride_git.bb
# poky/meta-qti-bt/recipes/libbt-vendor/libbt-vendor_git.bb
# poky/meta-qti-camera-prop/recipes/camx/camx_0.1.bb
# poky/meta-qti-camera-prop/recipes/camx/camxlib_0.1.bb
# poky/meta-qti-camera-prop/recipes/camx/chicdk_0.1.bb
# poky/meta-qti-gst-prop/recipes/secure-gst/secure-gst.bb
# poky/meta-qti-robotics-prop/recipes/imud/imud.bb
# poky/meta-qti-sensors-prop/recipes/sensors/sensors-see-qti_git.bb

RM_WORK_EXCLUDE += "${PN}" # 也可以添加所有模块到 local.conf， 譬如： RM_WORK_EXCLUDE += "camx chicdk ..."
inherit qprebuilt # 如果 bb 文件已经继承了此类，就不需要增加此行