有 ‘design’ 標籤彙整
In these days working from home is becoming a trend thanks to the internet. For those of you who work from home, or want to have a quiet place to work the OfficePOD provides a new additional space that is dedicated to work only. This creates a very important mental and physical boundary between home and work. The Office POD brings a whole new meaning to the idea of remote working as it comprises a rather sleek workspace in an all inclusive capsule. The OfficePOD is of optimum size (2.1m x 2.1m) and does not require planning consent in the greater majority of cases. It’s modular design enables speedy construction even in gardens with the most difficult access. The POD has been designed to provide appropriate security when empty or occupied. The external and internal look and feel of the space as well as the overall user experience is the product of an extensive design process.
每個網站擁有者都希望自己的站人氣鼎沸,但是隨著造訪人次和服務深度的提昇,對網站的資源就會有越大的需求。
一般而言,直接碰到的問題包括:
這些都需要花錢、花人力才能解決。但是,在確定投入金錢、人力之前,恐怕得先檢查一下出問題的原因,就像標題這種常見的問題,極可能像是蝴蝶效應般悄悄地伺機而動呢。
以下,就提供一個造成 MySQL 發出 too many connections 警訊的案例,足見程式設計的工作必須是很審慎、精密的計劃,否則將重重打擊系統的穩定性。
優化網站程式效率的作法很多,包括資料庫的充份正規化、快取技術、多層次主從架構等等,所有的方法為的都是減少不必要的運算和用最快的方式取得資料。
本文要談的是 memcache 這種作法,它是在主機上切出一塊記憶體作為公共儲存的空間。透過函示庫可以讓 php 這類的網頁程式將數值寫入記憶體備用。
那麼,實際的效能如何呢?
丁昶文 / Charlie Ting : 擁有十年以上經驗的網路人,分享對科技、社會議題的看法,期待在讀者迴響中看到更多可能。這裡沒有研究單位的詳細數據,只提觀察心得和大家交流。讚揚是為了分享、學習,批評是警惕自己不犯相同的錯誤。
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