On Tue, Jan 11, 2022 at 08:07:39AM +0100, Laszlo Ersek wrote:
> hmmmm, not necessarily; according to the manual, "qemu-img convert" uses
> (by default) 8 co-routines. There's also the -W flag ("out of order
> writes"), which I don't know if the original virt-v2v used.

I'm never sure how qemu coroutines map to threads.  I assume it's not
1-1, and it's somehow connected to the iothread setting?

The -W flag was only used for -o rhv-upload and not for any other
input or output method.  See write_out_of_order in the 1.44 code.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
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