From: Andrew Morton <akpm@linux-foundation.org>
To: Yury Norov <ynorov@caviumnetworks.com>
Cc: linux-kernel@vger.kernel.org,
Alexey Dobriyan <adobriyan@gmail.com>,
Clement Courbet <courbet@google.com>,
Matthew Wilcox <mawilcox@microsoft.com>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>
Subject: Re: [PATCH] lib: test module for find_*_bit() functions
Date: Thu, 9 Nov 2017 15:15:20 -0800 [thread overview]
Message-ID: <20171109151520.053425b697cd808206996e07@linux-foundation.org> (raw)
In-Reply-To: <20171109140714.13168-1-ynorov@caviumnetworks.com>
On Thu, 9 Nov 2017 17:07:14 +0300 Yury Norov <ynorov@caviumnetworks.com> wrote:
> find_bit functions are widely used in the kernel, including hot paths.
> This module tests performance of that functions in 2 typical scenarios:
> randomly filled bitmap with relatively equal distribution of set and
> cleared bits, and sparse bitmap which has 1 set bit for 500 cleared bits.
>
> ...
>
> +config TEST_FIND_BIT
Well. It doesn't actually "test" the code. It measures its performance ;)
next prev parent reply other threads:[~2017-11-09 23:15 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-09 14:07 [PATCH] lib: test module for find_*_bit() functions Yury Norov
2017-11-09 14:33 ` Clement Courbet
2017-11-09 23:15 ` Andrew Morton [this message]
2017-11-10 10:45 ` Alexey Dobriyan
2017-11-14 10:07 ` Yury Norov
2017-11-14 23:55 ` Andrew Morton
2017-11-12 11:33 ` Michael Ellerman
2017-11-14 10:58 ` Yury Norov
2017-11-21 8:38 ` Geert Uytterhoeven
2017-11-24 14:30 ` Yury Norov
2017-11-24 15:46 ` Geert Uytterhoeven
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