Dryice Liu’s Blog

Monthly Archives September 2006

different i-node for different file type?

This is mostly a note for myself.
In 3.2.4, it is said that “for a special file, this i-node contains the major device number, and the minor device number”. This is different from what we know for normal files, where the i-node contains file access time, etc.
It is not effecient to hold one i-node structure for […]

¶ Posted 13 September 2006 § minix ‡ Comments (0)

fighting with spam

There became more and more spam post on my blog, so I decide to fight with them.
There are several ways I can think off:

personal verify. That is, I review every post and decide if it should go into my blog. Well I don’t have time for this.
Only registered user can post. I don’t have such […]

¶ Posted 11 September 2006 § misc ‡ Comments (0)

reading the source

Well I am reading the paper book when I’m not in front of a computer. There’s no problem on this when I’m reading the principle chapters. However, it is really not easy to read the code on a paper if you are too customized to the facilities of a computer, like tags search and syntax […]

¶ Posted 07 September 2006 § minix ‡ Comments (0)

disk IO: interleave

I was reading about disk IO this morning. In chapter 3.1.3, it is said that the disk need to be formatted with the number interlaving, so that we’ll need less disk circlings to get the data we need.
My question is, all these is based on one assumption: that the buffer on the disk controller can […]