Thanks Lee, Arne, Thomas for replying. On Thu, Jan 10, 2019 at 01:56:05PM +0000, Lee Yarwood wrote:
What's the underlying version of QEMU being used here?
It's qemu-kvm-rhev-2.10.0-21.el7_5.4.x86_64
FWIW I can't recall seeing any performance issues when working on and verifying this downstream with QEMU 2.10.
I had wondered about https://bugzilla.redhat.com/1500334 (LUKS driver buffer size) which fits the symptoms, but the fix apparently went in to qemu-kvm-rhev-2.10.0-11.el7 so shouldn't be affecting us. I have a case open with RH Support now and I am keeping my fingers crossed. We will be redeploying this system again shortly with the latest Queens/RHOSP13 package versions, so should end up with qemu-kvm-rhev-2.12.0-18.el7_6.1.x86_64 and I will re-test then. Cheers, Dave -- ** Dave Holland ** Systems Support -- Informatics Systems Group ** ** 01223 496923 ** Wellcome Sanger Institute, Hinxton, UK ** -- The Wellcome Sanger Institute is operated by Genome Research Limited, a charity registered in England with number 1021457 and a company registered in England with number 2742969, whose registered office is 215 Euston Road, London, NW1 2BE.