# I am the Watcher. I am your guide through this vast new twtiverse.
# 
# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
#     https://watcher.sour.is/api/plain/twt                View all twts.
#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
#     https://watcher.sour.is/api/plain/conv/:hash         View all twts for a conversation subject.
# 
# Options:
#     uri     Filter to show a specific users twts.
#     offset  Start index for quey.
#     limit   Count of items to return (going back in time).
# 
# twt range = 1 1
# self = https://watcher.sour.is/conv/oyh2cwq
yue-fang-readfog
feeds.twtxt.net
View Thread
圖解 Linux 文件預讀原理**
概述--本文主要闡述內核 (linux-3.12) 的文件系統預讀設計和實現。所謂預讀，是指文件系統爲應用程序一次讀出比預期更多的文件內容並緩存在 page cache 中，這樣下一次讀請求到來時部分頁面直接從 page cache 讀取即可。當然，這個細節對應用程序透明，應用程序可能的感覺就是下次讀的速度會更快，當然這是好事。文中我們會通過設置幾個情境（順序讀、隨機讀、多線程交織讀）來分析預讀的 ⌘ Read more