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Date:   Fri, 12 Jun 2020 21:33:38 +0530
From:   afzal mohammed <afzal.mohd.ma@...il.com>
To:     Nicolas Pitre <nico@...xnic.net>
Cc:     Russell King - ARM Linux admin <linux@...linux.org.uk>,
        Arnd Bergmann <arnd@...db.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-arm-kernel@...ts.infradead.org,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>
Subject: Re: [RFC 0/3] ARM: copy_{from,to}_user() for vmsplit 4g/4g

Hi,

On Fri, Jun 12, 2020 at 09:31:12PM +0530, afzal mohammed wrote:

>                  512     1K      4K     16K     32K     64K     1M
>  
> normal           30      46      89     95      90      85      65
> 
> uaccess_w_memcpy 28.5    45      85     92      91      85      65
> 
> w/ series        22      36      72     79      78      75      61

For the sake of completeness all in MB/s, w/ various 'dd' 'bs' sizes.

Regards
afzal

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