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From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 0/5] New environment code
Date: Sat, 17 Jul 2010 23:41:57 +0200	[thread overview]
Message-ID: <20100717214157.BA49E153A7F@gemini.denx.de> (raw)
In-Reply-To: <201007171728.27716.vapier@gentoo.org>

Dear Mike Frysinger,

In message <201007171728.27716.vapier@gentoo.org> you wrote:
>
> i wonder if we could #ifdef the sorting/hashing.  i tend to agree with 

The sorting does not take much:

	-> size lib/qsort.o  
	   text    data     bss     dec     hex filename
	    264       0       0     264     108 lib/qsort.o

The hashing on the other hand might be replacable.

> Reinhard that it is very common for boards to be deployed with a small env, so 
> i wonder if the normal runtime experience is actually faster, or if the 
> difference is about the same as system noise: boot u-boot, load env with ~20 
> entries, read a few env vars, boot OS.

Yes, this is one common use case.

But then, I see also systems that are running pretty complex shell
scripts to implement features like reliable software updates etc., and
there we see an improvment.


Also, speed is just one aspect - for me the capability of having
several "profiles" is much, much more important.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
It is more rational to sacrifice one life than six.
	-- Spock, "The Galileo Seven", stardate 2822.3

  reply	other threads:[~2010-07-17 21:41 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-17 19:45 [U-Boot] [PATCH 0/5] New environment code Wolfgang Denk
2010-07-17 19:45 ` [U-Boot] [PATCH 1/5] Add basic errno support Wolfgang Denk
2010-07-17 21:17   ` Mike Frysinger
2010-07-17 21:34     ` Wolfgang Denk
2010-07-18 12:51     ` Jerry Van Baren
2010-07-18 13:03       ` Wolfgang Denk
2010-09-12 19:16   ` Wolfgang Denk
2010-07-17 19:45 ` [U-Boot] [PATCH 2/5] Add qsort - add support for sorting data arrays Wolfgang Denk
2010-09-12 19:16   ` Wolfgang Denk
2010-07-17 19:45 ` [U-Boot] [PATCH 3/5] Add hash table support as base for new environment code Wolfgang Denk
2010-09-12 19:16   ` Wolfgang Denk
2010-12-08  9:44   ` Mike Frysinger
2010-12-08 10:02     ` Wolfgang Denk
2010-12-08 10:52       ` Mike Frysinger
2010-07-17 19:45 ` [U-Boot] [PATCH 4/5] Remove support for CONFIG_HAS_UID and "forceenv" command Wolfgang Denk
2010-07-17 22:12   ` Sergey Kubushyn
2010-09-12 19:18   ` Wolfgang Denk
2010-07-17 19:45 ` [U-Boot] [PATCH 5/5] New implementation for internal handling of environment variables Wolfgang Denk
2010-07-17 22:48   ` [U-Boot] [PATCH] new env: fix off-by-one error in setenv command Wolfgang Denk
2010-07-20  0:38   ` [U-Boot] [PATCH 5/5] New implementation for internal handling of environment variables Kim Phillips
2010-07-20  9:40     ` Wolfgang Denk
2010-07-20 18:36       ` Kim Phillips
2010-07-20 19:01         ` Wolfgang Denk
2010-07-20 20:09           ` Wolfgang Denk
     [not found]             ` <1279658019.5685.125.camel@thunk>
2010-07-20 20:35               ` Wolfgang Denk
2010-07-20 21:08             ` Kim Phillips
2010-07-20 21:43               ` Wolfgang Denk
2010-07-20 22:00                 ` Kim Phillips
2010-07-25 21:45                   ` Wolfgang Denk
2010-07-26 23:18                     ` Kim Phillips
2010-07-20 19:11         ` Wolfgang Denk
2010-07-26 14:52   ` Matthias Fuchs
2010-07-28 21:17     ` Wolfgang Denk
2010-07-29  9:16       ` Matthias Fuchs
2010-08-03 22:48         ` Wolfgang Denk
2010-09-12 19:19   ` Wolfgang Denk
2010-12-30  1:53   ` [U-Boot] env_flash.c:saveenv() broken when env is smaller than a sector Mike Frysinger
2010-12-30  2:39     ` Mike Frysinger
2011-01-17 20:23       ` Wolfgang Denk
2010-07-17 19:49 ` [U-Boot] [PATCH 0/5] New environment code Wolfgang Denk
2010-07-17 20:56 ` Reinhard Meyer
2010-07-17 21:28   ` Mike Frysinger
2010-07-17 21:41     ` Wolfgang Denk [this message]
2010-07-18  2:18       ` Mike Frysinger
2010-07-17 21:31   ` Wolfgang Denk
2010-07-17 21:55 ` Wolfgang Denk
2010-07-18  5:32   ` Reinhard Meyer
2010-07-18 10:26     ` Wolfgang Denk
2010-10-20  8:08 ` Mike Frysinger
2010-10-20  8:19   ` Wolfgang Denk
2010-12-08  9:56 ` Mike Frysinger
2010-12-08 10:04   ` Wolfgang Denk
2010-12-08 10:19     ` Mike Frysinger

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