Messages in this thread | | | Date | Tue, 28 Sep 2010 18:34:14 +0200 | From | Avi Kivity <> | Subject | Re: [PATCH 0/8] v2 De-Couple sysfs memory directories from memory sections |
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On 09/28/2010 05:12 PM, Robin Holt wrote: > > Why not update sysfs directory creation to be fast, for example by > > using an rbtree instead of a linked list. This fixes an > > implementation problem in the kernel instead of working around it > > and creating a new ABI. > > Because the old ABI creates 129,000+ entries inside > /sys/devices/system/memory with their associated links from > /sys/devices/system/node/node*/ back to those directory entries. > > Thankfully things like rpm, hald, and other miscellaneous commands scan > that information. On our 8 TB test machine, hald runs continuously > following boot for nearly an hour mostly scanning useless information > from /sys/
I see - so the problem wasn't just kernel internal; the ABI itself was unsuitable. Too bad this wasn't considered at the time it was added.
(129k entries / 1 hour = 35 entries/sec; not very impressive)
-- error compiling committee.c: too many arguments to function
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