Re: [Qemu-devel] is there a limit on the number of in-flight I/O operations?

[Paolo Bonzini]

Il 19/07/2014 08:27, Chris Friesen ha scritto:
> Does it track in-flight operations though?  Or just how many operations
> can be requested in a given amount of time?

It should track in flight operations.  However, I'm not sure it supports
the iops=0 case properly, since I do not see anything in
tracked_request_end that ceases the accounting of the current operation.
 Benoit, can you answer?

Paolo

> If it tracks how many operations can be requested, then if the "iops"
> parameter is larger than what the server can maintain then the number of
> in-flight operations could still grow indefinitely.
> 
> I suppose I'll have to check the code. :)