# 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/ogicvwa
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5 倍性能提升！如何優化 Golang 定時任務調度**
項目中需要使用一個簡單的定時任務調度的框架，最初直接從 GitHub 上搜了一個 star 比較多的，就是 https://github.com/robfig/cron，目前有 8000+ star。剛開始使用的時候發現問題不大，但是隨着單機需要定時調度的任務越來越多，高峯期差不多接近 500QPS，隨着業務的推廣使用，可以預期增長還會比較快，但是已經遇到 CPU 使用率偏高的問題，通過 ppro ⌘ Read more