Re: [Libguestfs] [PATCH nbdkit 0/5 ] vddk: Implement parallel thread model

On Wed, Oct 27, 2021 at 04:55:16PM +0100, Richard W.M. Jones wrote: The problem is that vSphere >= 6.7 is required for async callbacks to actually do anything -- to be fair to VMware at least they don't fail against older versions, they just work the same as synchronous calls. I was testing against 6.5. Testing again with 7.0: with patch: 4m28.477s 6.6 Mbps without patch: 7m54.925s 3.7 Mbps Looking at the raw logs I can see that requests are now overlapping as I would expect. This server is remote so I didn't expect to get good absolute numbers. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 100 libraries supported. http://fedoraproject.org/wiki/MinGW