Why realistic UDP bandwidth testing is hard
Since very few real applications just blindly fire UDP packets at atarget, when you want to know what UDP bandwidth you can get you aregenerally interested in the speed at which you can have a UDP-basedconversation between two sides. In other words, you need a bidirectionaltester, not just the sort of simple unidirectional one you can use withTCP bandwidth testing.
(Of course, TCP is actually bidirectional too. It's just that theconversation inherent in TCP is already handled by your TCP stack.
低水
之前說買金，真的買了，不過見它沒有爆升，於是過一兩天就賣了。以宜家的時勢，博不到就要收手了。
早前入的工商銀行（1398，收市報$3.65），我昨天都賣光了。有糊就要食，之
How Linux initrds used to be a hack
The traditional way that Unix kernels boot is to perform some very basicsystem setup, declare the running code to be a kernel process with PID 1,initialize all of the various important subsystems (such as networking),initialize drivers, mount the root filesystem from whatever device youtold them was the root device, and then just exec() (from inside thekernel) /sbin/init . At least in the somewhat old days, Linux was noexception to this.
The problem for initrds is that the job
Hope
It was not an exciting story. Instead, it reminds me the very first time when I, as a graduate medical student, was to help someone fallen sick aboard.
We were having the Outward Bound School sea diploma course then. The sea was rough, the majority of us miserable with throwing up. My teammates turned to me, who was supposed to
CLICK：香港的希望（蕭若元）
我覺得蕭生對香港現時的政治形勢分析獨到而準確。對香港新一代人所追求的價值也非常精準。
我們需要一個建立一個”真正“的民主右派。
寵辱
一旦得過寵，又受過辱，就會發現兩者都不是特別過癮的事，一個人受到他人寵愛，很容易會招人妒忌，是非隨之而來，“眼紅症”病患者不問情由就會小題大做，無事生非，務求令得寵的人受辱。然而，
Problems I have seen with switch port mirroring
For my sins, I have spent a modest amount of time testing how well a fewswitches did port mirroring . Thedepressing result was that neither of the switches I tested had portmirroring that worked really well for our needs, but on the other handit has given me an appreciation for the issues that port mirroring canhave.
(We use port mirroring for simple network traffic volume monitoring,and we would like to be able to use it for network debugging; at thetime I was investigating if we could use
我的書
因為要校對，我把幾個月前寫完的《救命》讀了三次，我並不是那種認為自
十月蘋果
「 假 」 驟 似 是 個 貶 義 字 ， 不 論 加 上 甚 麼 形 容 詞 都 可 以 ， 反 正 一 字 一 劃 總 沁 出 負 面 的 味 道 。 在 字 典 找 到 的 釋 義 是 ： 不 真 的 、 虛 偽 的 、 人 造 的 。 與 「 真 」 相 對 。 如 假 髮 、 假 話 、 假 面 具 、 虛 情 假 意 等 。 「 假 」 可 以 是 實 際 需 要