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[Xen-devel] Re: [PATCH] x86/hvm: accelerate IO intercept handling
| To: | Andre Przywara <andre.przywara@xxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Re: [PATCH] x86/hvm: accelerate IO intercept handling |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Fri, 05 Mar 2010 15:55:17 +0000 |
| Cc: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Fri, 05 Mar 2010 07:56:07 -0800 |
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| Thread-index: | Acq8e6Z+HluasPeOQ6mODsQthuxnewAAJmME |
| Thread-topic: | [PATCH] x86/hvm: accelerate IO intercept handling |
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On 05/03/2010 15:49, "Andre Przywara" <andre.przywara@xxxxxxx> wrote: >> Unless the speedup on the only >> possibly-interesting workload you mention is significant, this whole >> optimisation seems unnecessary. > Actually it is missing enablement. Yes it's very important to use *every* CPU feature. ;-) Well, the patch looks okay, and it may speed up things we care about a percent or two I guess. I will look at it properly after 4.0 and I'm sure we can get it in the tree. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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