Re: [PATCH] kvm: irqchip: Break up high order allocations of kvm_irq_routing_table

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Am 11.05.2015 um 14:50 schrieb Christian Borntraeger:

> s390 has a route per device, but with 100 virtio-blk devices the difference seem
> pretty much on the "dont care" side. qemu aio-poll/drain code seems to cause
> much more delay since we elimited the kernel delays by using 
> synchronize_srcu_expedited.

This is ambiguous:
My point is: qemu did not get slower, it was already slow and the kernel got fast
enough that it is no longer the slowest part.

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