[gentoo-dev] Re: Re: grub reiser4

[Duncan]

Chris Gianelloni posted <1128344061.6692.11.camel@×××××××××××××××××.net>,
excerpted below,  on Mon, 03 Oct 2005 08:54:21 -0400:

> On Sun, 2005-10-02 at 10:02 +0000, Chris Bainbridge wrote:
>> On 02/10/05, R Hill <dirtyepic.sk@×××××.com> wrote:
>> > I still think it's retarded to have a reiser 4 boot partition, but
>> > whatever stirs your pot. ;P
>>
>> It makes sense if you're actually using reiser4 for everything else.
>> Why bloat your kernel with an extra FS just for /boot?
>
> The space added to a kernel for ext2 is *much* less than the overhead of
> using a journaling file system for /boot.  You're wasting exponentially
> more space using reiser on /boot.  The same would be true if you were
> using ext3, which is why you always see us suggesting using ext2 for
> boot.

Disk-space, yes.  However, memory-wise, kernel memory is locked memory,
not swappable.  If one is already using reiserfs for other partitions,
using it for boot and either not compiling ext2 or making it a module and
not loading it under normal circumstances, means more efficient use of
memory.  Disk-space @ 50 cents a gig, tens of megs is no big deal.  Memory
space @ 50 dollars a gig or more, and much less of it to spare, a few
tens of kBytes, particularly of locked memory, IS a big deal.  (Kernel
2.6.14-rc3 ext2.ko, compiled for size on amd64, 63,839 bytes, here.)

However, all the arguments based on space required for journalling go out
the window with reiser4, because as I explained in a previous post, it's
more literally atomic commits than traditional journalling.

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman in
http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_interview.html


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