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From: Greg KH <greg@kroah.com>
To: Benjamin LaHaise <bcrl@kvack.org>
Cc: James Bottomley <James.Bottomley@SteelEye.com>,
	Satyam Sharma <satyam.sharma@gmail.com>,
	Matthew Wilcox <matthew@wil.cx>, Simon Arlott <simon@fire.lp0.eu>,
	Dave Jones <davej@redhat.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-scsi@vger.kernel.org, kernel-packagers@vger.kernel.org,
	"Robert P. J. Day" <rpjday@mindspring.com>
Subject: Re: sysfs makes scaling suck Re: Asynchronous scsi scanning
Date: Sat, 19 May 2007 09:30:53 -0700	[thread overview]
Message-ID: <20070519163052.GA4793@kroah.com> (raw)
In-Reply-To: <20070517174952.GB30571@kvack.org>

On Thu, May 17, 2007 at 01:49:52PM -0400, Benjamin LaHaise wrote:
> On Thu, May 17, 2007 at 01:45:24PM -0400, James Bottomley wrote:
> > But also, the sysfs with over 4,000 (and higher) devices was
> > specifically checked by OSDL (actually as part of the CGL testing) some
> > of the Manoj changes (for unpinning entries etc) were needed to get it
> > to function, but as of now, I believe an enterprise scaling test works
> > reasonably well for it ... there certainly wasn't any evidence of it
> > dying horribly in the tests.
> 
> i386 exhausts lowmem very quickly.  SCSI is in a bit better shape than 
> network devices as the multiplier is only around 4 compared to 16 for network 
> devices.

And sysfs pushes nodes out of memory when we start to exhaust memory, so
there should not be a problem at all.  If there is, please let the sysfs
developers know about it and we will work to fix this.

thanks,

greg k-h

  reply	other threads:[~2007-05-19 18:50 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-13 15:22 why does x86 "make defconfig" build a single, lonely module? Robert P. J. Day
2007-05-13 15:58 ` Jan Engelhardt
2007-05-13 16:06 ` Dave Jones
2007-05-13 16:10   ` James Bottomley
2007-05-13 16:18     ` James Bottomley
2007-05-13 16:30       ` Dave Jones
2007-05-14  9:35       ` Satyam Sharma
2007-05-14  9:45         ` Satyam Sharma
2007-05-14 12:00           ` Satyam Sharma
2007-05-14 12:23             ` Satyam Sharma
2007-05-14 14:31               ` James Bottomley
2007-05-15  0:41                 ` Satyam Sharma
2007-05-15 11:26                   ` Simon Arlott
2007-05-15 12:02                     ` Asynchronous scsi scanning Matthew Wilcox
2007-05-15 16:30                       ` Simon Arlott
2007-05-15 17:29                         ` Matthew Wilcox
2007-05-15 21:56                           ` [PATCH] SCSI: Let users disable SCSI_WAIT_SCAN to be built Stefan Richter
2007-05-16 14:43                             ` Stefan Richter
2007-05-17 14:00                               ` James Bottomley
2007-05-17 17:02                                 ` Satyam Sharma
2007-05-15 23:27                           ` Asynchronous scsi scanning Satyam Sharma
2007-05-15 23:28                             ` Arjan van de Ven
2007-05-15 23:49                               ` Satyam Sharma
2007-05-16  2:51                             ` Matthew Wilcox
2007-05-16  2:59                               ` Roland Dreier
2007-05-17 17:13                               ` Satyam Sharma
2007-05-17 17:20                                 ` Matthew Wilcox
2007-05-17 17:41                                   ` Satyam Sharma
2007-05-17 18:24                                     ` Christoph Hellwig
2007-05-17 18:47                                       ` Satyam Sharma
2007-05-17 18:51                                         ` Christoph Hellwig
2007-05-17 19:04                                           ` Satyam Sharma
2007-05-17 19:39                                             ` Matthew Wilcox
2007-05-17 19:43                                               ` Benjamin LaHaise
2007-05-17 21:30                                                 ` Matthew Wilcox
2007-05-17 21:42                                                   ` Dave Jones
2007-05-17 22:00                                                     ` Peter Jones
2007-05-18 14:00                                                       ` Stefan Richter
2007-05-18  5:28                                                   ` Satyam Sharma
2007-05-18 11:24                                                     ` Matthew Wilcox
2007-05-18 13:14                                                       ` Satyam Sharma
2007-05-18  3:41                                                 ` Satyam Sharma
2007-05-18 11:19                                                   ` Matthew Wilcox
2007-05-18 13:06                                                     ` Satyam Sharma
2007-05-17 17:32                             ` sysfs makes scaling suck " Benjamin LaHaise
2007-05-17 17:45                               ` James Bottomley
2007-05-17 17:49                                 ` Benjamin LaHaise
2007-05-19 16:30                                   ` Greg KH [this message]
2007-05-17 22:24                       ` Peter Jones
2007-05-13 16:20     ` why does x86 "make defconfig" build a single, lonely module? Robert P. J. Day
2007-05-13 16:27       ` James Bottomley
2007-05-13 16:37         ` Robert P. J. Day
2007-05-13 17:42         ` Simon Arlott
2007-05-13 17:48           ` James Bottomley
2007-05-13 18:26             ` Simon Arlott
2007-05-13 18:45               ` Dave Jones
2007-05-13 18:45               ` James Bottomley
2007-05-14 17:29             ` Jan Engelhardt
2007-05-14 18:46               ` Alan Cox
2007-05-14 20:06                 ` Jan Engelhardt
2007-05-13 16:28     ` Dave Jones
2007-05-13 20:38     ` Simon Arlott

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