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DateMon, 29 Oct 2007 19:08:35 -0400
FromJeff Garzik <>
SubjectRe: [RFC] Create instrumentation directory (git repository)
Mathieu Desnoyers wrote:
> * Jeff Garzik (jeff@garzik.org) wrote:
>> Randy Dunlap wrote:
>>> On Mon, 29 Oct 2007 17:51:38 -0400 Mathieu Desnoyers wrote:
>>>
>>>> Hi,
>>>>
>>>> Since we already have the Instrumentation menu in
>>>> kernel/Kconfig.instrumentation and instrumentation code all over the
>>>> kernel tree:
>>>>
>>>> arch/*/oprofile/*.c
>>>> kernel/kprobes.c
>>>> arch/*/kernel/kprobes.c
>>>> kernel/marker.c
>>>> kernel/profile.c
>>>> kernel/lockdep.c
>>>> vm/vmstat.c
>>>> block/blktrace.c
>>>> drivers/base/power/trace.c
>>>>
>>>> We could move them to
>>>>
>>>> instrumentation/
>>>> arch/*/instrumentation/
>>>>
>>>> Therefore, we could also move the kprobes and marker samples under
>>>>
>>>> instrumentation/samples/
>>>>
>>>> Here is a link to a git repository containing the changes, based on
>>>> 2.6.24-rc1:
>>>>
>>>> git://ltt.polymtl.ca/linux-2.6-instrumentation.git 
>>>> instrumentation-for-linus
>>>> (the interesting range is : v2.6.24-rc1..instrumentation-for-linus)
>>>>
>>>> Through the gitweb interface:
>>>> http://ltt.polymtl.ca/cgi-bin/gitweb.cgi?p=linux-2.6-instrumentation.git
>>>>
>>>> Feedback is appreciated. Sorry for the huge CC list, but the change
>>>> involves many maintainers.
>>> Two more added.  Jeff Garzik and Christoph H. sometimes have some comments
>>> about this.
>>>
>>> It would be helpful if we could get comments on this in the next day
>>> or two [instead of in 1-2 weeks].
>> "instrumentation" is long, and painful to the fingers :)
>>
> 
> Quoting my post from last week:
> 
>> My main concern is that 15 characters long directory name might be
>> inelegant (however, it only beats Documentation by 2).
> 
> And quoting the answer from Valdis.Kletnieks@vt.edu :
> How so?  i n s esc.  4 keystrokes (and still 2 more than D<ESC> ;)
> 
> 
> 
> Better suggestions are wery welcome. However, in modern shells,
> auto-completion is cheap nowadays.

That is no excuse for extreme verbosity.  It makes ls(1) displays ugly, 
it makes diffstat ugly, it causes long pathnames to be truncated in 
various display-oriented programs.

Pick a shorter word like probes or profile or what... or better yet... 
just leave most things in their current directories.

Shuffling files around just to put them into directories with extra-long 
names is highly undesirable.

	Jeff


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