delphij's Chaos
选择chaos这个词是因为~~实在很难找到一个更合适的词来形容这儿了……
David Xu’s two recent commits against -HEAD has finally fixed ULE on SMP, PREEMPTION and FULL_PREEMPTION case. Both his and my stress tests has proven that ULE is now rock solid again.
Now we will focus on solving other issues. Please be sure to test our next 6-STABLE snapshot and provide feedback, so we can make a great 6.0-RELEASE!
Read more...So time comes that we should consider whether some of our string operations is not optimial and needs some operation. NetBSD seems to have done a lot of good work to make their MD layer better, and we should take these improvements if they are proven.
David O’Brien has pointed out that we should be careful on this, however, since some micro optimizations may hinder performance in a large scenario. With this concern in mind, I will redo some more benchmarks and request for -arch@’s idea before considering commiting the patchset. Currently, the NetBSD implementation of swab(2) is proven to be slower than the GCC generated code by about 25%. I will look into the assembly code generated to see whether I can help to solve this.
Read more...到家,没有任何迟疑就倒在了床上。
用一些无所谓的字,去拼砌一些无所谓的文。
五年前,自己想的是,五年以后自己将是什么样子。
四年前,发现其实自己做了一个错误的选择,可是不想就这样沉沦下去。
三年前,有了一些自己想要做的事情,打算大干一场。
Read more...Finally we got ULE fixed! After some observation about stability this would definately be MFC’ed to RELENG_
\[56\].
UPDATE: This is proven incomplete. We are still under investigation.
UPDATE: A subsequent commit of David Xu has finally got it fixed.
Read more...王先生如是说:
Read more...改名叫李浩源,不过这个名字未免有点别扭……另外,简写是lhy,哈哈哈哈哈哈哈
Read more...但是如果那群人一意孤行的话,我们一定会毫不犹豫地坚决回击,直到杀出个你死我活为止。
Read more...一个没有文化的国家,做不了好学问。能够学贯中西、博古通今固然好,但是,如果一个民族摒弃自身的文化背景,拥洋为重,最终只会失去身份认同,变得高不成、低不就。菲尔兹奖(Fields Medal)得主、华人数学大师丘成桐指出,中国学术界所面对的,正正就是这个窘境。 丘成桐接受访问的时候,谈到中国学术界种种不良的风气,归根究底,所有问题都是源于1966至1976年的「文化大革命」,摧毁中国多年良好的文化传统,大师给中国学术界点破死穴。
他解释:「自那时开始,中国人的价值观完全改变,是非观念和道德操守遭到扭曲,以致现在的学生和学校变得唯利是图,这种文化气候,是中国难以孕育一流学问的最主要原因。」
Read more...From: NASA
A planet larger than Pluto has been discovered in the outlying regions of the solar system.
The planet was discovered using the Samuel Oschin Telescope at Palomar Observatory near San Diego, Calif. The discovery was announced today by planetary scientist Dr. Mike Brown of the California Institute of Technology in Pasadena, Calif., whose research is partly funded by NASA.
多少不适合发布太多非常个人的东西。有些东西可能涉及商业机密,有些东西可能不希望对手看到,有些东西可能涉及别人的隐私没法公开,有些东西会被一些别有用心的人转到争议人士聚集的地方炸锅用,等等。
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