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SubjectRe: [PATCH] Parallelize mtrr init between cpus


2012-08-08 00:32, H. Peter Anvin wrote:
> On 08/07/2012 12:29 AM, zhenzhong.duan wrote:
>> Current code serialize mtrr init with set_atomicity_lock.
>> Mtrr init is quite slow when we bootup on a hvm with large mem, vcpus
>> and pci passthroughed devices(eg. 24 vcpus + 90G mem).
>> It took about ~30 mins to bootup, after patch, it took ~2 min.
> When you're saying "HVM" do you mean "Xen HVM"? How does it behave on
> native hardware?
>
> -hpa
Yes, I mean Xen HVM. Bootup at same speed as before on baremetal.


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