Re: [Qemu-devel] qemu AIO worker threads change causes Guest OS hangup

[Huaicheng Li (coperd)]

On Mar 1, 2016, at 3:34 PM, Stefan Hajnoczi <address@hidden> wrote:

Have you seen Linux Documentation/device-mapper/delay.txt?

You could set up a loopback block device and put the device-mapper delay target on top to simulate latency.

I’m working on one idea to emulate the latency of SSD read/write, 

which is *dynamically* changing according to the status of emulated 

flash media. Thanks for the suggestion.