# 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/ws2lgha
yue-fang-readfog
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TCP 到底有什麼性能問題？**
概述\-\- TCP 的性能問題本質是公平與效率的取捨問題。TCP 實現可靠傳輸層的核心有三點：確認與重傳 (已經可以滿足 “可靠性”，但是可能存在性能問題) 滑動窗口 (也就是流量控制，爲了提高吞吐量，充分利用鏈路帶寬，避免發送方發的太慢) 擁塞控制 (防止網絡鏈路過載造成丟包，避免發送方發的太快) 滑動窗口主要關注發送方到接收方的流量控制 擁塞控制更多地關注整個網絡 ⌘ Read more