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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>