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From: "David S. Miller" <davem@redhat.com>
To: Manfred Spraul <manfred@colorfullife.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: single copy pipe/fifo
Date: Wed, 7 Feb 2001 12:51:11 -0800 (PST)	[thread overview]
Message-ID: <14977.46399.167035.94694@pizda.ninka.net> (raw)
In-Reply-To: <3A81AE75.3CEF5577@colorfullife.com>
In-Reply-To: <3A81AE75.3CEF5577@colorfullife.com>


Manfred Spraul writes:
 > * if you run 2 instances on a dual cpu P II/350 it's a big win, but if
 > you run only one instance, then the bw_pipe processes will jump from one
 > cpu to the other and it's only a small improvement (~+15%).

wake_up_interruptible_sync is meant specifically to avoid
this cpu hopping behavior.

Later,
David S. Miller
davem@redhat.com
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  reply	other threads:[~2001-02-07 20:52 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-02-07 20:22 Manfred Spraul
2001-02-07 20:51 ` David S. Miller [this message]
2001-02-07 21:10   ` Manfred Spraul
2001-02-07 21:16   ` David S. Miller

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