Re: [Qemu-discuss] Supporting unsafe create when backing file is not accessible

2017-07-12 Thread Eric Blake
On 07/12/2017 03:56 AM, Ala Hino wrote: > Hi, > > We encountered a performance issue when creating a volume for a running VM > and we'd like to share the info with you. The root cause of the issue is in > our code but we found a workaround that relies on qemu-img create > undocumented behavior. >

[Qemu-discuss] Supporting unsafe create when backing file is not accessible

2017-07-12 Thread Ala Hino
Hi, We encountered a performance issue when creating a volume for a running VM and we'd like to share the info with you. The root cause of the issue is in our code but we found a workaround that relies on qemu-img create undocumented behavior. During our tests, we found that in order to create a