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Subscribe藉由減少例外處理的途徑降低 Linux 系統呼叫執行成本 - 洪培軒
由於場地問題，第二天我們移動到另一棟大樓啦！議程教室變動請見網站上的議程表。
歡迎來到 https://hackmd.io/@coscup/2019 共筆
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COSCUP2019系統軟體社群議程IB201簡報：https://hackmd.io/@afcidk/Syy-KJomS#/5
論文：https://www.usenix.org/legacy/events/osdi10/tech/full_papers/Soares.pdf
概念
透過 kernel , userspace 共用 memory space
Syscall batching
User process 等到累積一定數量才從 user mode 轉到 kernel mode，可以節省時間
實作
QA
有考慮System call latency?
花費的時間已經在圖中了
Dependency的問題要怎麼處理?
在某些情況不能保證能作syscall batching