linux-kernel - Re: [bisected] pre-3.16 regression on open() scalability

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Message-ID: <alpine.DEB.2.11.1406201106010.11238@gentwo.org>
Date:	Fri, 20 Jun 2014 11:07:13 -0500 (CDT)
From:	Christoph Lameter <cl@...two.org>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
cc:	josh@...htriplett.org, Andi Kleen <ak@...ux.intel.com>,
	Dave Hansen <dave.hansen@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"Chen, Tim C" <tim.c.chen@...el.com>
Subject: Re: [bisected] pre-3.16 regression on open() scalability

On Fri, 20 Jun 2014, Paul E. McKenney wrote:

> And the fraction of the small systems that care that much about latency
> is also quite small.

This also impacts general performance of course not only latency.

> Of course, if you have performance results that show otherwise, please
> share them.

We are discussing a performance problem right here.
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