From: Albert ARIBAUD <albert.aribaud@free.fr>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH V3] arm: Use optimized memcpy and memset from linux
Date: Thu, 24 Mar 2011 15:34:11 +0100 [thread overview]
Message-ID: <4D8B5663.5080608@free.fr> (raw)
In-Reply-To: <1299828992-18207-1-git-send-email-weisserm@arcor.de>
Le 11/03/2011 08:36, Matthias Weisser a ?crit :
> Using optimized versions of memset and memcpy from linux brings a quite
> noticeable speed (x2 or better) improvement for these two functions.
>
> Here are some numbers for test done with jadecpu
>
> | HEAD(1)| HEAD(1)| HEAD(2)| HEAD(2)|
> | | +patch | | +patch |
> ---------------------------+--------+--------+--------+--------+
> Reset to prompt | 438ms | 330ms | 228ms | 120ms |
> | | | | |
> TFTP a 3MB img | 4782ms | 3428ms | 3245ms | 2820ms |
> | | | | |
> FATLOAD USB a 3MB img* | 8515ms | 8510ms | ------ | ------ |
> | | | | |
> BOOTM LZO img in RAM | 3473ms | 3168ms | 592ms | 592ms |
> where CRC is | 615ms | 615ms | 54ms | 54ms |
> uncompress | 2460ms | 2462ms | 450ms | 451ms |
> final boot_elf | 376ms | 68ms | 65ms | 65ms |
> | | | | |
> BOOTM LZO img in FLASH | 3207ms | 2902ms | 1050ms | 1050ms |
> where CRC is | 600ms | 600ms | 135ms | 135ms |
> uncompress | 2209ms | 2211ms | 828ms | 828ms |
> | | | | |
> Copy 1.4MB from NOR to RAM | 134ms | 72ms | 120ms | 70ms |
>
> (1) No dcache
> (2) dcache enabled in board_init
> *Does not work when dcache is on
>
> Size impact:
>
> C version:
> text data bss dec hex filename
> 202862 18912 266456 488230 77326 u-boot
>
> ASM version:
> text data bss dec hex filename
> 203798 18912 266288 488998 77626 u-boot
> 222712 u-boot.bin
>
> Signed-off-by: Matthias Weisser<weisserm@arcor.de>
> ---
Applied to u-boot-arm/master, thanks.
Amicalement,
--
Albert.
prev parent reply other threads:[~2011-03-24 14:34 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-24 15:56 [U-Boot] [PATCH] arm: Use optimized memcpy and memset from linux Matthias Weisser
2011-01-24 16:13 ` Wolfgang Denk
2011-01-24 19:24 ` Matthias Weißer
2011-01-24 20:07 ` Wolfgang Denk
2011-01-25 10:55 ` Matthias Weißer
2011-01-25 20:05 ` Wolfgang Denk
2011-01-26 10:45 ` [U-Boot] [PATCH V2] " Matthias Weisser
2011-01-26 12:07 ` Albert ARIBAUD
2011-01-26 12:50 ` Matthias Weißer
2011-01-26 13:07 ` Wolfgang Denk
2011-01-27 18:39 ` Albert ARIBAUD
2011-02-20 19:35 ` Alexander Holler
2011-03-03 7:07 ` Albert ARIBAUD
2011-03-11 7:36 ` [U-Boot] [PATCH V3] " Matthias Weisser
2011-03-24 14:34 ` Albert ARIBAUD [this message]
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