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Groups > linux.kernel > #1309970 > unrolled thread
| Started by | Mahmood Naderan <mahmood.nt@gmail.com> |
|---|---|
| First post | 2016-01-15 10:10 +0100 |
| Last post | 2016-01-15 17:40 +0100 |
| Articles | 6 — 3 participants |
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Understanding IO architecture Mahmood Naderan <mahmood.nt@gmail.com> - 2016-01-15 10:10 +0100
Re: Understanding IO architecture Daniel Baluta <daniel.baluta@gmail.com> - 2016-01-15 11:10 +0100
Re: Understanding IO architecture Jeff Merkey <linux.mdb@gmail.com> - 2016-01-15 17:40 +0100
Re: Understanding IO architecture Jeff Merkey <linux.mdb@gmail.com> - 2016-01-15 17:50 +0100
Re: Understanding IO architecture Mahmood Naderan <mahmood.nt@gmail.com> - 2016-01-15 22:40 +0100
Re: Understanding IO architecture Jeff Merkey <linux.mdb@gmail.com> - 2016-01-15 17:40 +0100
| From | Mahmood Naderan <mahmood.nt@gmail.com> |
|---|---|
| Date | 2016-01-15 10:10 +0100 |
| Subject | Understanding IO architecture |
| Message-ID | <qR8yl-3Yi-1@gated-at.bofh.it> |
What is the good starting point to understand linux kernel? I know you are going to say Understanding the Linux Kernel, but that is for 2005! and kernel 2.6. We know that currently, the latest version is 4.4 and the version number updates quickly. So, where can I find the core of IO architecture, page cache, block layer and ... for the most stable architecture and not the version number? Regards, Mahmood
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| From | Daniel Baluta <daniel.baluta@gmail.com> |
|---|---|
| Date | 2016-01-15 11:10 +0100 |
| Message-ID | <qR9ur-4CR-27@gated-at.bofh.it> |
| In reply to | #1309970 |
On Fri, Jan 15, 2016 at 11:00 AM, Mahmood Naderan <mahmood.nt@gmail.com> wrote: > What is the good starting point to understand linux kernel? I know you > are going to say Understanding the Linux Kernel, but that is for 2005! > and kernel 2.6. > > We know that currently, the latest version is 4.4 and the version > number updates quickly. So, where can I find the core of IO > architecture, page cache, block layer and ... for the most stable > architecture and not the version number? The best book you might find is Professional Linux Kernel architecture [1] Other than that, read the source code! thanks, Daniel. [1] http://www.amazon.com/Professional-Kernel-Architecture-Wolfgang-Mauerer/dp/0470343435
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| From | Jeff Merkey <linux.mdb@gmail.com> |
|---|---|
| Date | 2016-01-15 17:40 +0100 |
| Message-ID | <qRfzP-gk-7@gated-at.bofh.it> |
| In reply to | #1309970 |
On 1/15/16, Jeff Merkey <linux.mdb@gmail.com> wrote: > On 1/15/16, Mahmood Naderan <mahmood.nt@gmail.com> wrote: >> What is the good starting point to understand linux kernel? I know you >> are going to say Understanding the Linux Kernel, but that is for 2005! >> and kernel 2.6. >> >> We know that currently, the latest version is 4.4 and the version >> number updates quickly. So, where can I find the core of IO >> architecture, page cache, block layer and ... for the most stable >> architecture and not the version number? >> >> >> Regards, >> Mahmood >> > > Man, it's huge and linux has evolved into a giant jump table these > days. I started programming on it in the 2.2 days and it was fairly > sophisticated them. You could start > with reviewing what's in the /kernel directory. For I/O study the bio > architecture. FOr block layer start in drivers/block. > > Your best bet is to clone it, get yourself a good kernel debugger to > step through code and explore how things work. > > start by cloning it so you have your own copy. Download and install > git then clone Linus' tree. > > git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > > Then you can also get the linux-stable tree which has all the stable > versions of Linux > > git clone > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git > > if you need a good kernel debugger, try this one > > http://jeffmerkey.github.io thats http://jeffmerkey.github.io/linux > > Jeff >
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| From | Jeff Merkey <linux.mdb@gmail.com> |
|---|---|
| Date | 2016-01-15 17:50 +0100 |
| Message-ID | <qRfJx-lq-13@gated-at.bofh.it> |
| In reply to | #1310258 |
On 1/15/16, Jeff Merkey <linux.mdb@gmail.com> wrote: > On 1/15/16, Jeff Merkey <linux.mdb@gmail.com> wrote: >> On 1/15/16, Mahmood Naderan <mahmood.nt@gmail.com> wrote: >>> What is the good starting point to understand linux kernel? I know you >>> are going to say Understanding the Linux Kernel, but that is for 2005! >>> and kernel 2.6. >>> >>> We know that currently, the latest version is 4.4 and the version >>> number updates quickly. So, where can I find the core of IO >>> architecture, page cache, block layer and ... for the most stable >>> architecture and not the version number? >>> >>> >>> Regards, >>> Mahmood >>> >> >> Man, it's huge and linux has evolved into a giant jump table these >> days. I started programming on it in the 2.2 days and it was fairly >> sophisticated them. You could start >> with reviewing what's in the /kernel directory. For I/O study the bio >> architecture. FOr block layer start in drivers/block. >> >> Your best bet is to clone it, get yourself a good kernel debugger to >> step through code and explore how things work. >> >> start by cloning it so you have your own copy. Download and install >> git then clone Linus' tree. >> >> git clone >> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >> >> Then you can also get the linux-stable tree which has all the stable >> versions of Linux >> >> git clone >> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git >> >> if you need a good kernel debugger, try this one >> >> http://jeffmerkey.github.io > > thats http://jeffmerkey.github.io/linux > > > >> >> Jeff >> > If you have questions post them here. They may get lost in the noise but if I'm around I'll try to help you. I know linux fairly well, but it changes a lot and I do know the areas you asked about and can help you. Have fun. Don't get put off by folks seeming to ignore you, people are just very busy and most of them totally immersed in fixing their own areas but there are a few of us who will respond to you. Jeff
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| From | Mahmood Naderan <mahmood.nt@gmail.com> |
|---|---|
| Date | 2016-01-15 22:40 +0100 |
| Message-ID | <qRkga-3k6-5@gated-at.bofh.it> |
| In reply to | #1310271 |
>if you need a good kernel debugger, try this one > http://jeffmerkey.github.io/linux >If you have questions post them here. They may get lost in the noise >but if I'm around I'll try to help you. I know linux fairly well, but >it changes a lot and I do know the areas you asked about and can help >you. OK thank you very much. I read the Oreily's book but I thought some of the functions may have changed in recent versions. So, instead of greping to see what is what, I asked the question to become sure. Thanks again. Regards, Mahmood
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| From | Jeff Merkey <linux.mdb@gmail.com> |
|---|---|
| Date | 2016-01-15 17:40 +0100 |
| Message-ID | <qRfzQ-gk-9@gated-at.bofh.it> |
| In reply to | #1309970 |
On 1/15/16, Mahmood Naderan <mahmood.nt@gmail.com> wrote: > What is the good starting point to understand linux kernel? I know you > are going to say Understanding the Linux Kernel, but that is for 2005! > and kernel 2.6. > > We know that currently, the latest version is 4.4 and the version > number updates quickly. So, where can I find the core of IO > architecture, page cache, block layer and ... for the most stable > architecture and not the version number? > > > Regards, > Mahmood > Man, it's huge and linux has evolved into a giant jump table these days. I started programming on it in the 2.2 days and it was fairly sophisticated them. You could start with reviewing what's in the /kernel directory. For I/O study the bio architecture. FOr block layer start in drivers/block. Your best bet is to clone it, get yourself a good kernel debugger to step through code and explore how things work. start by cloning it so you have your own copy. Download and install git then clone Linus' tree. git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Then you can also get the linux-stable tree which has all the stable versions of Linux git clone https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git if you need a good kernel debugger, try this one http://jeffmerkey.github.io Jeff
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