There are two different uses of conditional GETs
There are two different (although overlapping) uses of conditionalGETs , especially the HTTP ETag header; reducing bandwidth, andreducing your computation. A successful conditional GET always reducesbandwidth usage, and it may let you skip doingexpensive operations to compute the request page.
Reducing bandwidth is useful in general because it improves the userexperience (although these days there is evidence that the big time hitcomes from the number of requests, not their size), but it probablydoesn't help your servers very much; most
香港‧道德港
多謝<新假期>
帶挈了客人拿著這頁來購物~
悼Donald Kwan
野良犬
(題外話) 最近有n位朋友來問我睇咗《見個大爺》沒有?
我總係話未有時間去睇。(其實我真係好唔想去那家低清戲院，真金白銀入場，何必要睇低清銀幕呢!)
他們說，我想等你睇咗先決定睇唔睇呀!
我話我頂你啦，我睇唔
關於諾貝爾獎，我在網上讀到這些
中國的兒童打生下來那一天起，其未來的大部分事務就早已被預定了，即由成人世界給我們安排妥當了——兒童生活于其中的家庭、學校、社會不但“包辦”了他們的衣食住行，更
ZFS GUIDs vs device names
One thing about ZFS GUIDs that I didn't get around tocovering is when commands like ' zpool status ' are misleading you aboutthe device names that they show.
When things are fine, ie when ZFS can find the GUID that it is lookingfor, the device name is correct (in fact hyper-correct, as ' zpoolstatus ' also checks that the device ID is the right one). When thingsare not fine, zpool will generally display the device name of the lastdevice that that GUID