lkml.org 
[lkml]   [2007]   [Oct]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/2] Colored kernel output (run3)

On Oct 7 2007 18:44, Ingo Molnar wrote:
>> This patch makes it possible to give kernel messages a selectable
>> color. It can be chosen at compile time, overridden at boot time, and
>> changed at run time.
>
>here's some (good) text footprint data:
>
>with the feature disabled (which is the default), the text size
>difference with patch #1:
>
> vmlinux:
> text data bss dec hex filename
> 7732358 1157269 401408 9291035 8dc51b vmlinux.before
> 7732358 1157269 401408 9291035 8dc51b vmlinux.after
>

I already posted the numbers. But it seems like the archives
like lkml.org or marc.info did not archive them (but i've cc'ed plenty
so you did not miss it.). See below.

>i.e. no overhead. Text size difference with patch #2:
>
> vmlinux:
> text data bss dec hex filename
> 7732358 1157269 401408 9291035 8dc51b vmlinux.before
> 7732374 1157269 401408 9291051 8dc52b vmlinux.after
>
>16 bytes, or 0.0002% of the total text size. So there's in essence no
>text overhead to talk about. So the text overhead argument is a red
>herring.

16 bytes, huh? Can't be. That would be like, perhaps 5, x86 instructions.

||Date: Sat, 6 Oct 2007 22:09:13 +0200 (CEST)
||Subject: [PATCH 0/2] Colored kernel output (run3)
||
||ok, so to make Oleg happy, here is run3 with a bool config option.
||
||i386>>
|| 48679 vt.o w/o anything
|| 48679 vt.o w/patch1
|| 49117 vt.o w/patch1 + CONFIG_VT_CKO=y
|| 49198 vt.o w/patch1+patch2 + CONFIG_VT_CKO=y
||--------
|| 519 total cost of CKO
||
||x86_64>>
|| 71892 vt.o w/patch1+patch2
|| 72787 vt.o w/patch1+patch2 + CONFIG_VT_CKO=y
||--------
|| 895
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-10-07 18:57    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site