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[Xen-ia64-devel] Shortage of Xen heap problem

To: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-ia64-devel] Shortage of Xen heap problem
From: Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>
Date: Tue, 20 Dec 2005 17:11:14 +0900
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Hi,

When Xen SMP is supported, it becomes Xen heap shortage with 3 CPUs or more.
Because Xen heap is required 16MB per CPU for VHPT. 
(Refer to attached file Xenheapshortage.txt)

I think that I will expand the size of Xen heap according to the value of 
NR_CPUS. 
I have the idea as follows.

#ifdef CONFIG_SMP
  Xen heap size = 63MB(default) + 16MB * NR_CPUS;
#else
  Xen heap size = 63MB(default);
#endif

Any idea and comment?

Best Regards,
 Kan

Attachment: Xenheapshortage.txt
Description: Binary data

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