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RE: [Xen-ia64-devel] [PATCH] XEN: accelerate guest tr search.
| To: | "Xu, Anthony" <anthony.xu@xxxxxxxxx>, "Magenheimer, Dan \(HP Labs Fort Collins\)" <dan.magenheimer@xxxxxx>, <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-ia64-devel] [PATCH] XEN: accelerate guest tr search. |
| From: | "Yang, Fred" <fred.yang@xxxxxxxxx> |
| Date: | Thu, 2 Mar 2006 20:27:23 -0800 |
| Delivery-date: | Fri, 03 Mar 2006 04:27:50 +0000 |
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| Thread-index: | AcY9+owe5F9SiyzmR9Wg5IjDZG3p4AAJjBfwAA+q0KAABsHXgA== |
| Thread-topic: | [Xen-ia64-devel] [PATCH] XEN: accelerate guest tr search. |
Xu, Anthony wrote: >> 3) I think we should be very careful about making changes >> that are intended to improve performance without doing any >> benchmarking. Many times I have seen code that was intended >> to improve performance actually -- surprise! -- result in >> performance degradation. > Agree, but it's unpractical to let developer to do benchmark testing, > Since Fujitsu will deliver regular performance reports, I think we > could > depend on these reports to find out the patch which cause performance > degradation. The correct approach is to get all the necessary features in, and then do the system-wide benchmark and fine-tuning, rather than local tweak or small benchmarks for large scaled system like Itanium -Fred _______________________________________________ Xen-ia64-devel mailing list Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-ia64-devel |
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