Re: sysfs makes scaling suck Re: Asynchronous scsi scanning

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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
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