linux-kernel - Re: Are Linux pipes slower than the FreeBSD ones ?

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Message-ID: <p73d4q95v7r.fsf@bingen.suse.de>
Date:	Wed, 05 Mar 2008 11:19:36 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Eric Dumazet <dada1@...mosbay.com>
Cc:	David Miller <davem@...emloft.net>, dmantipov@...dex.ru,
	linux-kernel@...r.kernel.org
Subject: Re: Are Linux pipes slower than the FreeBSD ones ?

Eric Dumazet <dada1@...mosbay.com> writes:
>
> This benchmarek mostly stress scheduler AFAIK, not really pipe() code...
>
> Lot of context switches...

The recent mysql sysbench benchmark where they also won was also such
a (somewhat unrealistic) scheduler benchmark with a lot of over
scheduling. Just speculating here, but perhaps the context switch got
slower recently?

-Andi
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