Messages in this thread | | | Subject | Re: [PATCH 0/8] v5 De-couple sysfs memory directories from memory sections | From | Dave Hansen <> | Date | Wed, 11 Aug 2010 08:18:52 -0700 |
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On Mon, 2010-08-09 at 12:53 -0500, Nathan Fontenot wrote: > This set of patches de-couples the idea that there is a single > directory in sysfs for each memory section. The intent of the > patches is to reduce the number of sysfs directories created to > resolve a boot-time performance issue. On very large systems > boot time are getting very long (as seen on powerpc hardware) > due to the enormous number of sysfs directories being created. > On a system with 1 TB of memory we create ~63,000 directories. > For even larger systems boot times are being measured in hours.
Hi Nathan,
The set is looking pretty good to me. We _might_ want to up the ante in the future and allow it to be even more dynamic than this, but this looks like a good start to me.
BTW, have you taken a look at what the hotplug events look like if only a single section (not filling up a whole block) is added?
Feel free to add my:
Acked-by: Dave Hansen <dave@linux.vnet.ibm.com>
-- Dave
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