2025-07-02 Fastcgi文件夹体积降低事件分析

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2025-07-02

发布了一篇新笔记🔗 [(mac vmware fusion) windows arm安装与使用 - Truxton's blog] https://truxton2blog.com/mac-vmware-fusion-windows-arm/，html总数从391变成了392，但fastcgi文件夹体积却意外地明显减少了：从33.271822 MB直接降到33.241735 MB，很不正常

很诡异，所以回档分析一下原因。把两次preload的fastcgi文件夹分别复制了一份（命名为small和big），然后让gpt给我写了个小程序

import os
import pandas as pd

def get_all_files(base_dir):
    file_map = {}
    for root, _, files in os.walk(base_dir):
        for f in files:
            full_path = os.path.join(root, f)
            rel_path = os.path.relpath(full_path, base_dir)
            file_map[rel_path] = full_path
    return file_map

def get_file_size_kb(path):
    return os.path.getsize(path) / 1024

def compare_dirs(big_dir, small_dir):
    big_files = get_all_files(big_dir)
    small_files = get_all_files(small_dir)

    data = []
    common_keys = big_files.keys() & small_files.keys()

    for rel_path in sorted(common_keys):
        big_path = big_files[rel_path]
        small_path = small_files[rel_path]
        big_size = get_file_size_kb(big_path)
        small_size = get_file_size_kb(small_path)
        diff = big_size - small_size

        data.append({
            "big_name": big_path,
            "small_name": small_path,
            "big_size": round(big_size, 2),
            "small_size": round(small_size, 2),
            "diff": round(diff, 2)
        })

    df = pd.DataFrame(data)
    return df

if __name__ == "__main__":
    df = compare_dirs("big", "small")
    df = df.sort_values(by='diff')
    # print(df)
    # Optionally save to CSV:
    df.to_csv("size_diff.csv", index=False)

最后发现是RSS Feed链接🔗 [truxton2blog.com/feed/?cat_48] https://truxton2blog.com/feed/?cat_48 在发布新笔记后体积爆减，diff了一下终于明白了：

增加了：windows arm的笔记（虽然publish date设置成了2024年11月，但modified date是今天，所以貌似还是会出现在RSS里面）

去掉了了一个巨无霸：🔗 [（2024年5月）学习pandas（最基础操作） - Truxton's blog] https://truxton2blog.com/2024-05-learn-pandas/

由于去掉的内容实在太多，新增的页面体积比不上减少的，所以最终fastcgi文件夹的体积也减少了。