城市哦~之「大爺 吃早餐了」
RPC is surprisingly expensive
Once, long ago, I did a distributed computing project course where Itried to speed up a drawing program by moving its expensive floatingpoint calculations (I believe it needed to calculate square roots forsomething) to a machine with a much faster CPU and floating point. Weused Sun's RPC/XDR for this because it was both a great match for whatwe were doing and the obvious choice at the time, among other reasons.
Rather to our surprise the drawing program just didn't get much faster
Extra security systems for Unix should be explicit, not implicit
I'm no fan of SELinux, but in stumbling over it a few times I've come tosome theories about why I don't think it works. One of them, perhaps themost important one, is this:
Extra Unix security stuff needs to be simple and explicit .
Extra Unix security stuff needs to be explicit because the effectivealternative is invisibility, since Unix already has one security systemand most people aren't going to do very well remembering a secondinvisible one.
(A great deal
鳴謝與獨白
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我喜歡在別人休息的時候工作,及在大腦轉動時靠近散發能量、語言簡潔、高度集中和積極的人。非常普通的要求。
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普通的工作倫理。如何做好一件事,是面對工作
Why Red Hat 7.3 is (still) so present on servers
Red Hat 7.3 came out in the summer of 2002, but much to various people'shorror you can still find it on servers (along with Red Hat 7.2, anotherperennial favorite). I think that there are at least two reasons forthis, and they work together in combination.
First, Red Hat 7.3 was the last Red Hat release until Fedora Core 2where you could run a stock kernel. From Red Hat 8 through FC 1, youneeded a
Hei Hei樓下的一段對話
我覺得沒所謂,好友就站在身邊,朋友在不遠處等候,clubbing partner亦在樓上。
他走遠了,但在離開我數尺的距離,面對著我,我們通了2分20秒的電話。
從12