Re: [Qemu-devel] How to measure guest memory access (qemu_ld/qemu_st) time?

[Orit Wasserman <owasserm@redhat.com>]

On 06/19/2012 11:49 AM, 陳韋任 (Wei-Ren Chen) wrote:
>   Mind me CC this to ML? :)
sure I will read the threads to understand more.

Orit
> 
>> Well it was a while back (2008-9) ,the company was acquired by IBM a year later :
>> http://www.linux-kvm.org/wiki/images/9/98/KvmForum2008%24kdf2008_2.pdf
>> I think stefan Hanjoczi worked there ...
>> The company used the technology for cross platform guest support but claim to get speedup too
>> (for ppc) don't think the speedup was related to mmu but more to the instruction stream.
>> I hope this is helpful.
> 
>   Thanks.
>  
>> Do you have performance result for the cost of the address translation ?
>> If I understand you are concentrating on ARM ?
> 
>   The whole discussion thread is on [1], and you can get some feel about
> the cost of address translation here [2]. Yes, ARM is our target right now,
> but I think we are not limit to it. 
> 
> Regards,
> chenwj
> 
> [1] http://www.mail-archive.com/qemu-devel@nongnu.org/msg116159.html
> [2] http://www.mail-archive.com/qemu-devel@nongnu.org/msg116404.html
>