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[Xen-ia64-devel] [PATCH] per vcpu vhpt
| To: | xen-ia64-devel@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-ia64-devel] [PATCH] per vcpu vhpt |
| From: | Isaku Yamahata <yamahata@xxxxxxxxxxxxx> |
| Date: | Fri, 6 Oct 2006 18:13:49 +0900 |
| Delivery-date: | Fri, 06 Oct 2006 02:14:16 -0700 |
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per vcpu vhpt implement per vcpu vhpt option. allocate VHPT per vcpu. added compile time option, xen_ia64_pervcpu_vhpt=y, to enable it. Its default is on. added xen boot time option, pervcpu_vhpt=0, to disable it. This patch focuses on vcpu migration between physical cpus becaseu vcpu is heavily migrated with credit scheduler. This patch tries to reduce vTLB flush when vcpu is migrated -- yamahata
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