Re: [1/7,v8] NUMA Hotplug Emulator: documentation

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From: Shaohui Zheng
Date: Tuesday, December 7, 2010 - 4:20 pm

On Tue, Dec 07, 2010 at 11:24:20AM -0700, Eric B Munson wrote:
Eric,
	the major change on the patchset is on the interface, for the v8 emulator,
we accept David's per-node debugfs add_memory interface, we already included
in the documentation patch. the change is very small, so it is not obvious.

This is the change on the documentation compare with v7:
+3) Memory hotplug emulation:
+
+The emulator reserves memory before OS boots, the reserved memory region is
+removed from e820 table. Each online node has an add_memory interface, and
+memory can be hot-added via the per-ndoe add_memory debugfs interface.
+
+The difficulty of Memory Release is well-known, we have no plan for it until
+now.
+
+ - reserve memory thru a kernel boot paramter
+ 	mem=1024m
+
+ - add a memory section to node 3
+    # echo 0x40000000 > mem_hotplug/node3/add_memory
+	OR
+    # echo 1024m > mem_hotplug/node3/add_memory
+

-- 
Thanks & Regards,
Shaohui

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Messages in current thread:
[0/7,v8] NUMA Hotplug Emulator (v8) , shaohui.zheng, (Mon Dec 6, 6:00 pm)
[1/7,v8] NUMA Hotplug Emulator: documentation, shaohui.zheng, (Mon Dec 6, 6:00 pm)
Re: [1/7,v8] NUMA Hotplug Emulator: documentation, Eric B Munson, (Tue Dec 7, 11:24 am)
Re: [1/7,v8] NUMA Hotplug Emulator: documentation, Shaohui Zheng, (Tue Dec 7, 4:20 pm)
Re: [1/7,v8] NUMA Hotplug Emulator: documentation, Eric B Munson, (Wed Dec 8, 10:46 am)
Re: [1/7,v8] NUMA Hotplug Emulator: documentation, Eric B Munson, (Wed Dec 8, 11:16 am)
Re: [1/7,v8] NUMA Hotplug Emulator: documentation, David Rientjes, (Wed Dec 8, 2:16 pm)
Re: [1/7,v8] NUMA Hotplug Emulator: documentation, David Rientjes, (Wed Dec 8, 2:18 pm)
Re: [1/7,v8] NUMA Hotplug Emulator: documentation, Shaohui Zheng, (Wed Dec 8, 5:09 pm)
Re: [1/7,v8] NUMA Hotplug Emulator: documentation, Shaohui Zheng, (Wed Dec 8, 5:23 pm)
Re: [1/7,v8] NUMA Hotplug Emulator: documentation, Shaohui Zheng, (Wed Dec 8, 5:33 pm)