我有幾年都沒有特地去看港姐了,所以對於這幾屆港姐是誰,我是說不出來的 (我的記憶大概可以追溯到曹敏莉…) 。前兩晚看到港姐決賽,在前頭有一個我認為不錯的題目,就是要佳麗們推介一本書或一套電影。
書/電影某程
Here's a good argument-starting question: which is faster and/orbetter, hardware RAID or software RAID?
A lot of conventional wisdom says hardware RAID, but I mostly disagree.Let's ask the inverse question: how (or when) can hardware RAID befaster than software RAID?
If you're doing RAID-5, the hardware could do XOR faster than your CPUcan. But in modern systems XOR performance is pretty much constrainedby the memory bandwidth, not CPU power. It
我有幾年都沒有特地去看港姐了,所以對於這幾屆港姐是誰,我是說不出來的 (我的記憶大概可以追溯到曹敏莉…) 。前兩晚看到港姐決賽,在前頭有一個我認為不錯的題目,就是要佳麗們推介一本書或一套電影。
書/電影某程
Via Slashdot comes a report of a new biometric airport security system for detecting'hostile intent' (their term). According to the Wall Street Journalarticle:
In the latest Israeli trial, the system caught 85% of the role-actingterrorists, meaning that 15% got through, and incorrectly identified8% of innocent travelers as potential threats, according to corporatemarketing materials.
The company's goal is to prove it can catch at least 90% of potentialsaboteurs -- a 10
Dear Linux distributions: if I want to use a freaky super-intelligenteditor I am perfectly able to fire up emacs myself, or even type ' vim 'instead of ' vi ' (honest, the extra letter is not too much for me totype). I want vi . You know, the simple and predictable thing thatsystem administrators like because it behaves.
As an aid to your planning, here is a minimum feature for any editorcalled vi :
When I paste things into an alleged
viin insert
The Bourne shell's real problem for writing shell scripts is that itdoesn't have a real data structure for lists. This leads to puttinglists in strings, which leads to reparsing strings, which leads tohideous doom and all of those problems with filenames that havewhitespace in them.
(When lists are represented as strings, every string might be a list,so every time the Bourne shell expands a variable it must try to turnit into a list unless the expansion is specifically marked as not doingthat