FreeBSD Kernel Internals, Dr. Marshall Kirk McKusick

[MaakaSofy]

hey people could you help me out?? I need to answer this questions and i really dont get what marshall is talking about... i would be really gratefull if you could help me out (:

a) the origin of FreeBSD

b) the developers of Unix and FreeBSD

c) What is the goal of NetBSD?

d) What is virtual paging?

d) why it is better to have reduced descriptions of hardware devices and use signaling?

[sbergman27]

16:00 Soft updates might provide similar functionality to (metadata-only) journaling. But the implementation of a soft updates fs is a nightmare compared to that of a journaling fs. I suspect that if the FreeeBSD guys had it all to do over again, they'd have done journaling, instead. And, of course, soft updates can't match the functionality of data+metadata journaling.

[glowcode]

It's the most complicated, interesting, versatile operating system I've ever used. I just wish my local ports servers didn't have so many problems :(

[ReallyLee]

My experience trying to study FreeBSD kernel internals is this material is not usefully accessible if you do not have at least 2 years of Computer Science. You have to be able to read a snippet of C and understand the implied data structure and algorithm. The FreeBSD and Linux kernels I think of as very empirical objects. The original Unix and original C programming language are based on profound simplifying insights. The big ideas aren't visible without C knowledge.

[wesleycristian2011]

galera vejam esse video ai muinto Fila... galera......

watch?v=-fSs80f8bUQ

[juancarlospaco]

Jails = LXC

[mrkotfw]

Very very interesting. Just finished an introductory OS course and I'm happy to say that I understand what he's talking about.

[Squad2ND]

Nice to see an expert who's "down to earth"...

[axenz1]

Hi, I try to install but " CPU doesn't support long mode " , try to download FreeBSD I386 but still same error. How can I fix it?

[sunchane2005]

He looks like Dr. Wily (Mega Man).

[SZF123456]

@sunchane2005 "By the late 1980's, I WANTED TO CRUSH THAT MEGA JERK!"

[TheGreatAndyChow]

I like the idea of FreeBSD, but it seems more bloated and inefficient than Linux. BSD users talk about a unified approach, doing what's right instead of what works, and designing a system more efficiently by combining the userland with the kernel. But what I see is a slow install, slow system, full of bugs and unsupported features. Plus the linux compatibility is pretty much required to do anything interesting, so why not use a Linux kernel from the start?

I want FreeBSD, but without headaches.

[petegiant]

@TheGreatAndyChow

"I want FreeBSD, but without headaches."

From what you've said in your comments its pretty obvious you havent used it much if at all, so i wouldnt worry about so-called headaches.

[TheGreatAndyChow]

@petegiant

I don't know what would give you the impression that I haven't used it much. Do you mean you get used to the headaches? FreeBSD just isn't as good as Linux for a desktop solution. I doubt it even beats Linux in server performance and reliability. Debian with the FreeBSD Kernel lags behind Debian with the Linux Kernel in every metric.

It's not only benchmarks. FreeBSD consistently has more bugs/lines of code than Linux does.

[petegiant]

@TheGreatAndyChow

All i was saying is if you find linux easier to use, then thats the right choice for you.

Your comments eg. "slow install, slow system, full of bugs and unsupported features." are simply untrue.

As far as reliability as a server is concerned, under real heavy load, FreeBSD stays up where a lot of linux distros would become unusable/unstable. Yahoo, Hotmail & Microsoft's website run on FreeBSD.

There are features of FreeBSD, such as jails, that you maybe missing out on.

[petegiant]

@TheGreatAndyChow

If you like Linux and find that the best fit for you then use it.

FreeBSD may not have graphical install like many Linux distros but it is v capable of running a stable desktop. Under serious load it has been documented that Linux can become unusable/unstable whereas FreeBSD will still function in a stable manner. Yahoo, Hotmail, Microsoft's site all run on FreeBSD for example. I personally find less headaches in managing services in jails, than in other methods.

[RenegadeFury]

This guy looks like a pedophile. (I do like freebsd tho)

[cpghost]

I had the privilege of listening to one of his presentations at an NLUUG event in the Netherlands, and he is an awesome lecturer. I wished I could afford his DVDs though.

[shazwari]

Very well explained, I really don't mind paying for this.

[sparkynione]

why its not free like OCW ?

still prof needs money from the students...thats bad ...he didn't learn yet about spearding knowledge at this age

[F00dTube]

sparkynione: as opposed to your comment which is entirely free. It's also empty. I know your type (gnu footsoldiers), you sit around in your irc channel trolling on everyone that comes in. This guy wrote a book, took the time to put his knowlegde into a formatting that is is easy for people to learn. He has to print it package it and send it by mail. But no of course he has to do all this for nothing. Like you do RIGHT?!!

[Garegin]

to comments below. i think the effort should be made to make linux work better since it already has momentum. as a desktop OS, freebsd sucks so much that it would be better to implement the missing linux features that freebsd has, then spend time on distros like PCBSD. freebsd is losing many users on the server side as well, because linux has the financial muscle to incorporate new things that make for a faster server OS.

[LTS1287]

The gentleman giving the lecture is an expert in his field. I would pay to see his lecture because its worth it. If you're too cheap well then you're screwed.

[Andrew5544]

Student Pricing?

[MournfulEmpathy]

Students have 50% discount.

[wickedtubed]

I know people are posting about the cost, but next to what companies normally pay for *nix training from vendors, this is a great deal, and I bet a whole lot more valuable. My $0.02

[djstoneyjackson]

Not that much really in the video, but his book is quite good. Definitely worth checking out.

[flybekvc]

Yeap! Great video but too expensive for most of us.I am a student, I cant afford buying the whole serie.

[trekdanne1989]

never

[Seraphimous]

that`s good, but anfortunately it is just a teaser, isn't it?

next lectures won`t appear here, McKusick`s course is just another commercial stuff.... 1k$? great deal... better download that book =)

[bulaionionion]

if freebsd keeps integrating more and more linux shit, it will finally become a junk.

[KernelThread]

Well.. nothing comes for free these days lol...

[benutzer2]

ya. free in the ultimate sense, no; however you can get things that are really free for you... (If your time doesn't cost money.)

[onkarMarch1981]

The cost of purchasing the lecture is so high that some good programmers in Asia, Africa etc do not have their yearly income that much . Nevertheless they are interested...

[elkstar7]

The sale of the videos and books is important in helping to fund FreeBSD development. There are many sources of information including reading the kernel source code itself, after all, it is an open source operating system. I think Kirk should sell books and videos in order to help fund his work on the operating system.

[onkarMarch1981]

Dr. Marshall Kirk McKusick should consider giving up all the lectures for free for betterment of FreeBSD. I am sure there would be at least a few couple of very talented computer programmers who will turn their attention to FreeBSD development because of this....

Its for the spreading of knowledge and FreeBSD operating system...

[spearPYN]

Thank You. Dr. Marshall Kirk McKusick is a legend in the BSD world.

[ZappyDaemon]

Great!

[McUrex]

Thank you, very intresting.