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RE: [Xen-devel] vram_dirty vs. shadow paging dirty tracking

> Compared to what, just updating the full screen 30 times a second?  I
> suspect that's not as bad as it sounds since SDL will be using a
> XShmImage. 
It depends on how you run the benchmark. In case of multiple VMs case
where multiple Qemus (say 8) are running, this kind of comparation eat
unacceptable cpu cycles.

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